| Prefix | Plan Name | |
|---|---|---|
| R2A | Highmark BCBS of Pennsylvania | |
| R2B | Blue Cross Blue Shield of Illinois | |
| R2C | Premera Blue Cross | |
| R2D | Blue Cross Blue Shield of Illinois | |
| R2E | Blue Cross Blue Shield of Illinois | |
| R2F | Blue Cross Blue Shield of Illinois | |
| R2G | Blue Cross Blue Shield of Texas | |
| R2H | Anthem BCBS of Indiana | |
| R2I | Blue Cross Blue Shield of Rhode Island | |
| R2J | Anthem BCBS of Ohio | |
| R2K | Anthem BCBS of Ohio | |
| R2L | Highmark BCBS of Pennsylvania | |
| R2M | Empire Blue Cross Blue Shield | |
| R2P | Regence Blue Cross Blue Shield of Oregon | |
| R2R | Empire Blue Cross Blue Shield | |
| R2S | Regence Blue Cross Blue Shield of Oregon | |
| R2T | Blue Cross Blue Shield of Illinois | |
| R2X | Premera Blue Cross | |
| R3A | Anthem BCBS of Ohio | |
| R3B | Blue Cross Blue Shield of Texas | |
| R3D | Premera Blue Cross | |
| R3E | Anthem BCBS of Virginia | |
| R3F | Blue Cross Blue Shield of Illinois | |
| R3G | Anthem BCBS of Ohio | |
| R3H | Anthem BCBS of Georgia | |
| R3M | Empire Blue Cross Blue Shield | |
| R3P | Blue Cross Blue Shield of Illinois | |
| R3R | Regence Blue Cross Blue Shield of Oregon | |
| R3S | Blue Cross Blue Shield of Illinois | |
| R3T | Blue Cross Blue Shield of Illinois | |
| R3W | Premera Blue Cross | |
| R4A | Highmark BCBS of Pennsylvania | |
| R4B | Blue Cross Blue Shield of Texas | |
| R4D | Premera Blue Cross | |
| R4F | Blue Cross Blue Shield of Illinois | |
| R4J | Anthem BCBS of Wisconsin | |
| R4K | Anthem BCBS of Wisconsin | |
| R4P | Blue Cross Blue Shield of Illinois | |
| R4S | Premera Blue Cross | |
| R5C | Blue Cross Blue Shield of Illinois | |
| R5F | Blue Cross Blue Shield of Illinois | |
| R5L | Blue Cross Blue Shield of Massachusetts | |
| R6A | Anthem BCBS of Ohio | |
| R6D | Regence Blue Cross Blue Shield of Oregon | |
| R6F | Blue Cross Blue Shield of Illinois | |
| R6P | Premera Blue Cross | |
| R6S | Regence Blue Cross Blue Shield of Oregon | |
| R7F | Regence Blue Shield of Washington | |
| RAA | Independence Blue Cross | |
| RAB | Blue Cross Blue Shield of South Carolina | |
| RAC | Anthem BCBS of Wisconsin | |
| RAD | Wellmark BCBS | |
| RAE | Blue Cross Blue Shield of North Carolina | |
| RAF | Blue Cross of California | |
| RAG | Wellmark BCBS | |
| RAH | Anthem BCBS of Connecticut | |
| RAI | Wellmark BCBS | |
| RAJ | Blue Cross Blue Shield of Alabama | |
| RAK | Independence Blue Cross | |
| RAL | Anthem BCBS of Ohio | |
| RAM | BCBS of Texas | |
| RAN | Wellmark BCBS | |
| RAO | Independence Blue Cross | |
| RAP | Wellmark BCBS | |
| RAQ | Wellmark BCBS | |
| RAR | Anthem BCBS of Kentucky | |
| RAS | Blue Shield of California | |
| RAT | Blue Cross of California | |
| RAU | Blue Cross Blue Shield of South Carolina | |
| RAV | Anthem BCBS of Virginia | |
| RAW | Blue Cross of California | |
| RAX | BCBS of Western New York | |
| RAY | CareFirst BCBS | |
| RAZ | Blue Shield of California | |
| RBA | Anthem BCBS of Georgia | |
| RBB | Blue Shield of California | |
| RBC | Anthem BCBS of Wisconsin | |
| RBD | Blue Cross Blue Shield of Minnesota | |
| RBE | Wellmark BCBS | |
| RBF | Blue Cross Blue Shield of Minnesota | |
| RBG | Blue Cross Blue Shield of Illinois | |
| RBH | Anthem BCBS of Ohio | |
| RBI | Blue Cross Blue Shield of Mississippi | |
| RBJ | Blue Shield of California | |
| RBK | BCBS of Florida | |
| RBL | Blue Cross of California | |
| RBM | CareFirst BCBS | |
| RBN | Blue Cross Blue Shield of South Carolina | |
| RBO | Anthem BCBS of Georgia | |
| RBP | Blue Cross Blue Shield of Minnesota | |
| RBQ | Anthem BCBS of Ohio | |
| RBR | Blue Cross Blue Shield of Massachusetts | |
| RBS | Blue Cross Blue Shield of Texas | |
| RBT | Blue Cross Blue Shield of Illinois | |
| RBU | Blue Cross of California | |
| RBV | CareFirst BCBS | |
| RBW | Blue Shield of Northeastern New York | |
| RBX | Blue Cross Blue Shield of South Carolina | |
| RBY | Blue Cross Blue Shield of Minnesota | |
| RBZ | Blue Shield of Northeastern New York |
| RCA | Unassigned | |
| RCB | Blue Cross of Idaho | |
| RCC | Empire Blue Cross Blue Shield | |
| RCD | Anthem BCBS of Virginia | |
| RCE | BCBS of Western New York | |
| RCF | Blue Cross Blue Shield of Alabama | |
| RCG | Regence Blue Cross Blue Shield of Oregon | |
| RCH | Blue Cross Blue Shield of Massachusetts | |
| RCI | Anthem BCBS of Missouri | |
| RCJ | Anthem BCBS of Georgia | |
| RCK | Wellmark BCBS | |
| RCL | Blue Cross Blue Shield of Tennessee | |
| RCM | Blue Cross Blue Shield of Alabama | |
| RCN | Wellmark BCBS | |
| RCO | Regence Blue Cross Blue Shield of Oregon | |
| RCP | CareFirst BCBS | |
| RCQ | Blue Cross Blue Shield of Texas | |
| RCR | Blue Cross Blue Shield of Illinois | |
| RCS | CareFirst BCBS | |
| RCT | Anthem BCBS of Virginia | |
| RCU | Unassigned | |
| RCV | Anthem BCBS of Ohio | |
| RCW | Blue Cross Blue Shield of South Carolina | |
| RCX | Anthem BCBS of Connecticut | |
| RCY | Blue Cross Blue Shield of Illinois | |
| RCZ | Anthem BCBS of Connecticut | |
| RDA | Anthem BCBS of Georgia | |
| RDB | Blue Cross Blue Shield of North Carolina | |
| RDC | Blue Cross Blue Shield of South Carolina | |
| RDD | Blue Cross Blue Shield of North Dakota | |
| RDE | Blue Cross Blue Shield of Kansas City | |
| RDF | Empire Blue Cross Blue Shield | |
| RDG | Anthem BCBS of Ohio | |
| RDH | Anthem BCBS of Ohio | |
| RDI | Anthem BCBS of Wisconsin | |
| RDJ | BCBS of Western New York | |
| RDK | Regence Blue Shield of Washington | |
| RDL | Anthem BCBS of Wisconsin | |
| RDM | Highmark BCBS of Pennsylvania | |
| RDN | Blue Shield of California | |
| RDO | Blue Cross Blue Shield of North Dakota | |
| RDP | Wellmark BCBS | |
| RDQ | Unassigned | |
| RDR | Highmark BCBS | |
| RDS | Blue Cross Blue Shield of Michigan | |
| RDT | Blue Shield of California | |
| RDU | Blue Cross Blue Shield of North Carolina | |
| RDV | Blue Cross Blue Shield of Rhode Island | |
| RDW | Regence Blue Shield of Washington | |
| RDX | Blue Cross of California | |
| RDY | Wellmark BCBS | |
| RDZ | Highmark BCBS of Pennsylvania | |
| REA | Blue Cross Blue Shield of North Carolina | |
| REB | CareFirst BCBS | |
| REC | Wellmark BCBS | |
| RED | CareFirst BCBS | |
| REE | CareFirst BCBS | |
| REF | BCBS of Texas | |
| REG | Wellmark BCBS | |
| REH | Blue Shield of California | |
| REI | Blue Shield of California | |
| REJ | Blue Cross Blue Shield of Michigan | |
| REK | Wellmark BCBS | |
| REL | Blue Shield of California | |
| REM | Blue Cross Blue Shield of Vermont | |
| REN | Blue Cross Blue Shield of Michigan | |
| REO | Blue Cross Blue Shield of North Carolina | |
| REP | Empire Blue Cross Blue Shield | |
| REQ | BCBS of Western New York | |
| RER | Blue Cross of California | |
| RES | Anthem BCBS of Virginia | |
| RET | Blue Cross Blue Shield of Texas | |
| REU | Blue Cross of California | |
| REV | Blue Cross Blue Shield of Massachusetts | |
| REW | Blue Shield of California | |
| REX | Blue Cross Blue Shield of Texas | |
| REY | BCBS of Texas | |
| REZ | Blue Shield of California | |
| RFA | Blue Cross Blue Shield of Kansas City | |
| RFB | Empire Blue Cross Blue Shield | |
| RFC | Blue Cross Blue Shield of South Carolina | |
| RFD | Blue Cross Blue Shield of Minnesota | |
| RFE | Anthem BCBS of Georgia | |
| RFF | Blue Cross Blue Shield of Minnesota | |
| RFG | Blue Cross of California | |
| RFH | Blue Cross Blue Shield of Illinois | |
| RFI | Blue Shield of California | |
| RFJ | Anthem BCBS of Wisconsin | |
| RFK | Blue Cross Blue Shield of Illinois | |
| RFL | Anthem BCBS of Wisconsin | |
| RFM | Anthem BCBS of Georgia | |
| RFN | Blue Cross of California | |
| RFO | Blue Cross Blue Shield of Kansas City | |
| RFP | Anthem BCBS of Wisconsin | |
| RFQ | Anthem BCBS of Virginia | |
| RFR | Independence Blue Cross | |
| RFS | Blue Shield of California | |
| RFT | Blue Shield of California | |
| RFU | Blue Cross of California | |
| RFV | BCBS of Michigan |
| RFW | Horizon Blue Cross Blue Shield of New Jersey | |
| RFX | Blue Cross of Idaho | |
| RFY | Blue Cross Blue Shield of Michigan | |
| RFZ | Blue Cross of California | |
| RGA | Blue Cross of California | |
| RGB | Blue Cross Blue Shield of Illinois | |
| RGC | Blue Cross Blue Shield of Texas | |
| RGD | Wellmark BCBS | |
| RGE | Wellmark BCBS | |
| RGF | Blue Cross Blue Shield of North Carolina | |
| RGG | Blue Cross Blue Shield of Tennessee | |
| RGH | Blue Cross Blue Shield of Texas | |
| RGI | Blue Cross Blue Shield of Michigan | |
| RGJ | Premera Blue Cross | |
| RGK | Blue Cross Blue Shield of Kansas City | |
| RGL | Blue Cross Blue Shield of Illinois | |
| RGM | Blue Cross of California | |
| RGN | Blue Cross Blue Shield of Alabama | |
| RGO | Regence Blue Cross Blue Shield of Oregon | |
| RGP | Blue Cross of California | |
| RGQ | Anthem BCBS of Virginia | |
| RGR | Blue Cross Blue Shield of Illinois | |
| RGS | Blue Cross of Idaho | |
| RGT | Blue Cross Blue Shield of Alabama | |
| RGU | Blue Cross of California | |
| RGV | Blue Cross Blue Shield of North Carolina | |
| RGW | Horizon Blue Cross Blue Shield of New Jersey | |
| RGX | Anthem BCBS of Virginia | |
| RGY | Independence Blue Cross | |
| RGZ | Anthem BCBS of Wisconsin | |
| RHA | Blue Shield of California | |
| RHB | Blue Cross of California | |
| RHC | Blue Cross Blue Shield of Massachusetts | |
| RHD | Blue Cross of California | |
| RHE | Anthem BCBS of Missouri | |
| RHF | Anthem BCBS of Kentucky | |
| RHG | Blue Cross Blue Shield of Kansas City | |
| RHH | Blue Cross Blue Shield of Texas | |
| RHI | Blue Cross of Idaho | |
| RHJ | Blue Cross Blue Shield of South Carolina | |
| RHK | Blue Cross Blue Shield of Nebraska | |
| RHL | Premera Blue Cross | |
| RHM | Highmark BCBS of Pennsylvania | |
| RHN | Highmark BCBS of Pennsylvania | |
| RHO | Anthem BCBS of Missouri | |
| RHP | Blue Cross of California | |
| RHQ | Regence Blue Cross Blue Shield of Oregon | |
| RHR | Anthem BCBS of Kentucky | |
| RHS | Anthem BCBS of Georgia | |
| RHT | Anthem BCBS of Georgia | |
| RHU | Anthem BCBS of Virginia | |
| RHV | Highmark BCBS of Pennsylvania | |
| RHW | Blue Cross Blue Shield of Texas | |
| RHX | Anthem BCBS of Wisconsin | |
| RHY | Blue Cross Blue Shield of Illinois | |
| RHZ | Blue Cross Blue Shield of Nebraska | |
| RIA | Blue Cross Blue Shield of Rhode Island | |
| RIB | Blue Cross Blue Shield of Rhode Island | |
| RIC | Anthem BCBS of Virginia | |
| RID | Independence Blue Cross | |
| RIE | Blue Cross Blue Shield of Massachusetts | |
| RIF | Highmark BCBS of Pennsylvania | |
| RIG | Blue Cross Blue Shield of Michigan | |
| RIH | Highmark BCBS of Pennsylvania | |
| RII | Regence Blue Cross Blue Shield of Utah | |
| RIJ | Blue Shield of California | |
| RIK | Wellmark BCBS | |
| RIL | Blue Cross Blue Shield of South Carolina | |
| RIM | Regence Blue Shield of Washington | |
| RIN | Blue Cross Blue Shield of Rhode Island | |
| RIO | Unassigned | |
| RIP | Independence Blue Cross | |
| RIQ | Blue Cross Blue Shield of Michigan | |
| RIR | Highmark BCBS of Pennsylvania | |
| RIS | Blue Cross Blue Shield of Rhode Island | |
| RIT | Independence Blue Cross | |
| RIU | Anthem BCBS of Kentucky | |
| RIV | Independence Blue Cross | |
| RIW | Unassigned | |
| RIX | Blue Shield of California | |
| RIY | BCBS of Florida | |
| RIZ | Blue Cross Blue Shield of Alabama | |
| RJA | Horizon Blue Cross Blue Shield of New Jersey | |
| RJB | Blue Cross Blue Shield of Alabama | |
| RJC | Anthem BCBS of Kentucky | |
| RJD | Anthem BCBS of Georgia | |
| RJE | Anthem BCBS of Ohio | |
| RJF | Regence Blue Cross Blue Shield of Oregon | |
| RJG | Independence Blue Cross | |
| RJH | Wellmark BCBS | |
| RJI | Blue Cross Blue Shield of South Carolina | |
| RJJ | Unassigned | |
| RJK | Blue Cross Blue Shield of Oklahoma | |
| RJL | Highmark BCBS of Pennsylvania | |
| RJM | Unassigned | |
| RJN | Anthem BCBS of Ohio | |
| RJO | Blue Cross Blue Shield of Arkansas | |
| RJP | Anthem BCBS of Kentucky | |
| RJQ | Anthem BCBS of Wisconsin | |
| RJR | Highmark BCBS of Pennsylvania |
| RJS | Blue Cross Blue Shield of South Carolina | |
| RJT | Blue Cross of California | |
| RJU | Horizon Blue Cross Blue Shield of New Jersey | |
| RJV | Blue Cross Blue Shield of Illinois | |
| RJW | Anthem BCBS of Ohio | |
| RJX | Horizon Blue Cross Blue Shield of New Jersey | |
| RJY | Blue Cross Blue Shield of Massachusetts | |
| RJZ | Blue Cross Blue Shield of Michigan | |
| RKA | Blue Shield of California | |
| RKB | Anthem BCBS of Virginia | |
| RKC | Blue Cross Blue Shield of Kansas City | |
| RKD | CareFirst BCBS | |
| RKE | Wellmark BCBS | |
| RKF | Highmark BCBS of Pennsylvania | |
| RKG | Blue Cross Blue Shield of Minnesota | |
| RKH | Blue Cross Blue Shield of Illinois | |
| RKI | Blue Cross of California | |
| RKJ | Wellmark BCBS | |
| RKK | CareFirst BCBS | |
| RKL | Wellmark BCBS | |
| RKM | Highmark BCBS of Pennsylvania | |
| RKN | Blue Cross Blue Shield of Kansas City | |
| RKO | Wellmark BCBS | |
| RKP | Wellmark BCBS | |
| RKQ | Blue Cross Blue Shield of Kansas City | |
| RKR | Wellmark BCBS | |
| RKS | Anthem BCBS of Virginia | |
| RKT | Blue Cross Blue Shield of Minnesota | |
| RKU | Horizon Blue Cross Blue Shield of New Jersey | |
| RKV | BCBS of Illinois | |
| RKW | Blue Cross Blue Shield of Rhode Island | |
| RKX | Horizon Blue Cross Blue Shield of New Jersey | |
| RKY | Blue Cross of California | |
| RKZ | Blue Cross Blue Shield of Massachusetts | |
| RLA | Independence Blue Cross | |
| RLB | Capital BlueCross | |
| RLC | Anthem BCBS of Ohio | |
| RLD | Blue Cross Blue Shield of Illinois | |
| RLE | Blue Cross Blue Shield of Nebraska | |
| RLF | Blue Cross Blue Shield of Arkansas | |
| RLG | Blue Cross Blue Shield of Massachusetts | |
| RLH | Wellmark BCBS | |
| RLI | Independence Blue Cross | |
| RLJ | Anthem BCBS of Virginia | |
| RLK | Blue Cross Blue Shield of Illinois | |
| RLL | Anthem BCBS of Nevada | |
| RLM | Unassigned | |
| RLN | Blue Cross Blue Shield of Illinois | |
| RLO | Blue Cross Blue Shield of South Carolina | |
| RLP | Blue Cross Blue Shield of Michigan | |
| RLQ | Capital BlueCross | |
| RLR | Blue Cross Blue Shield of Illinois | |
| RLS | Blue Cross Blue Shield of Kansas City | |
| RLT | Blue Cross Blue Shield of Rhode Island | |
| RLU | BCBS of Western New York | |
| RLV | Anthem BCBS of Wisconsin | |
| RLW | Empire Blue Cross Blue Shield | |
| RLX | Horizon Blue Cross Blue Shield of New Jersey | |
| RLY | Blue Shield of California | |
| RLZ | Blue Cross Blue Shield of Illinois | |
| RMA | Wellmark BCBS | |
| RMB | Horizon Blue Cross Blue Shield of New Jersey | |
| RMC | Excellus BCBS | |
| RMD | Anthem BCBS of Kentucky | |
| RME | Blue Cross Blue Shield of Massachusetts | |
| RMF | Blue Cross Blue Shield of Michigan | |
| RMG | Blue Cross Blue Shield of Tennessee | |
| RMH | Blue Cross Blue Shield of Michigan | |
| RMI | Blue Cross of Idaho | |
| RMJ | Blue Shield of California | |
| RMK | Anthem BCBS of Missouri | |
| RML | Blue Cross Blue Shield of Illinois | |
| RMM | Blue Cross Blue Shield of South Carolina | |
| RMN | Independence Blue Cross | |
| RMO | BCBS of Western New York | |
| RMP | Anthem BCBS of Georgia | |
| RMQ | Premera Blue Cross | |
| RMR | CareFirst BCBS | |
| RMS | Premera Blue Cross | |
| RMT | Regence Blue Shield of Washington | |
| RMU | Unassigned | |
| RMV | Blue Cross Blue Shield of Michigan | |
| RMW | CareFirst BCBS | |
| RMX | Blue Shield of California | |
| RMY | Unassigned | |
| RMZ | CareFirst BCBS | |
| RNA | Capital BlueCross | |
| RNB | Regence Blue Shield of Washington | |
| RNC | Wellmark BCBS | |
| RND | Blue Cross Blue Shield of Illinois | |
| RNE | Blue Cross of California | |
| RNF | Anthem BCBS of Colorado | |
| RNG | Blue Cross of California | |
| RNH | Anthem BCBS of Wisconsin | |
| RNI | Blue Cross of California | |
| RNJ | Blue Cross of California | |
| RNK | Anthem BCBS of Wisconsin | |
| RNL | Blue Cross Blue Shield of South Carolina | |
| RNM | Blue Cross Blue Shield of South Carolina | |
| RNN | Anthem BCBS of Virginia |
| RNO | Independence Blue Cross | |
| RNP | Blue Cross Blue Shield of Illinois | |
| RNQ | Wellmark BCBS | |
| RNR | Anthem BCBS of Georgia | |
| RNS | CareFirst BCBS | |
| RNT | Blue Cross Blue Shield of Minnesota | |
| RNU | CareFirst BCBS | |
| RNV | Blue Shield of Northeastern New York | |
| RNW | Blue Cross of California | |
| RNX | Blue Cross Blue Shield of Massachusetts | |
| RNY | Blue Cross Blue Shield of Nebraska | |
| RNZ | Blue Shield of California | |
| ROA | Blue Cross Blue Shield of Massachusetts | |
| ROB | Regence Blue Cross Blue Shield of Oregon | |
| ROC | Blue Cross Blue Shield of Arkansas | |
| ROD | Capital BlueCross | |
| ROE | Capital BlueCross | |
| ROF | Blue Cross Blue Shield of Illinois | |
| ROG | Anthem BCBS of Connecticut | |
| ROH | Independence Blue Cross | |
| ROI | Anthem BCBS of Missouri | |
| ROJ | Unassigned | |
| ROK | Blue Shield of Northeastern New York | |
| ROL | Regence Blue Cross Blue Shield of Oregon | |
| ROM | Premera Blue Cross | |
| RON | Blue Shield of California | |
| ROO | Independence Blue Cross | |
| ROP | Blue Shield of California | |
| ROQ | Independence Blue Cross | |
| ROR | Anthem BCBS of Ohio | |
| ROS | Blue Cross Blue Shield of Alabama | |
| ROT | Unassigned | |
| ROU | Blue Cross Blue Shield of Michigan | |
| ROV | BCBS of Western New York | |
| ROW | Unassigned | |
| ROX | Blue Cross Blue Shield of North Carolina | |
| ROY | BCBS of Florida | |
| ROZ | Anthem BCBS of Colorado | |
| RPA | Regence Blue Cross Blue Shield of Oregon | |
| RPB | Regence Blue Cross Blue Shield of Oregon | |
| RPC | Blue Cross Blue Shield of Michigan | |
| RPD | Blue Shield of California | |
| RPE | Unassigned | |
| RPF | Unassigned | |
| RPG | Blue Shield of California | |
| RPH | Anthem BCBS of Ohio | |
| RPI | Highmark BCBS of Pennsylvania | |
| RPJ | Highmark BCBS of Pennsylvania | |
| RPK | Blue Cross Blue Shield of South Carolina | |
| RPL | Highmark BCBS of Pennsylvania | |
| RPM | Premera Blue Cross | |
| RPN | Blue Cross Blue Shield of South Carolina | |
| RPO | Blue Shield of California | |
| RPP | Anthem BCBS of Georgia | |
| RPQ | Empire Blue Cross Blue Shield | |
| RPR | Wellmark BCBS | |
| RPS | Anthem BCBS of Virginia | |
| RPT | BCBS of Western New York | |
| RPU | Blue Shield of California | |
| RPV | Empire Blue Cross Blue Shield | |
| RPW | Anthem BCBS of Ohio | |
| RPX | Blue Cross Blue Shield of Illinois | |
| RPY | Blue Cross Blue Shield of Arkansas | |
| RPZ | Blue Cross Blue Shield of South Carolina | |
| RQA | Wellmark BCBS | |
| RQB | BCBS of Western New York | |
| RQC | Blue Cross Blue Shield of Illinois | |
| RQD | Blue Cross Blue Shield of Michigan | |
| RQE | Unassigned | |
| RQF | Blue Cross Blue Shield of Michigan | |
| RQG | Highmark BCBS of Pennsylvania | |
| RQH | BCBS of Western New York | |
| RQI | Blue Cross Blue Shield of Alabama | |
| RQJ | Anthem BCBS of Ohio | |
| RQK | Regence Blue Cross Blue Shield of Oregon | |
| RQL | Unassigned | |
| RQM | Blue Cross Blue Shield of Massachusetts | |
| RQN | Regence Blue Shield of Washington | |
| RQO | Blue Cross Blue Shield of Michigan | |
| RQP | Anthem BCBS of Georgia | |
| RQQ | Blue Cross of California | |
| RQR | Wellmark BCBS | |
| RQS | Blue Cross of Idaho | |
| RQT | Blue Shield of California | |
| RQU | Wellmark BCBS | |
| RQV | Horizon Blue Cross Blue Shield of New Jersey | |
| RQW | Blue Cross Blue Shield of Massachusetts | |
| RQX | Blue Cross Blue Shield of Michigan | |
| RQY | BCBS of Michigan | |
| RQZ | Premera Blue Cross | |
| RRA | Anthem BCBS of Ohio | |
| RRB | Anthem BCBS of Indiana | |
| RRC | Blue Cross Blue Shield of Alabama | |
| RRD | Unassigned | |
| RRE | Anthem BCBS of Ohio | |
| RRF | Anthem BCBS of Ohio | |
| RRG | Anthem BCBS of Georgia | |
| RRH | Unassigned | |
| RRI | Independence Blue Cross | |
| RRJ | Blue Cross Blue Shield of Illinois |
| RRK | Blue Cross Blue Shield of Kansas City | |
| RRL | Anthem BCBS of Kentucky | |
| RRM | Anthem BCBS of Georgia | |
| RRN | Blue Cross Blue Shield of Alabama | |
| RRO | Blue Cross Blue Shield of Massachusetts | |
| RRP | Regence Blue Cross Blue Shield of Oregon | |
| RRQ | Blue Cross of California | |
| RRR | Highmark BCBS of Pennsylvania | |
| RRS | Blue Cross Blue Shield of Illinois | |
| RRT | Regence Blue Cross Blue Shield of Oregon | |
| RRU | BCBS of Western New York | |
| RRV | Blue Cross of California | |
| RRW | Blue Cross Blue Shield of Alabama | |
| RRX | BCBS of Florida | |
| RRY | Blue Cross Blue Shield of Texas | |
| RRZ | Wellmark BCBS | |
| RSA | Blue Cross Blue Shield of Nebraska | |
| RSB | Blue Cross of California | |
| RSC | Anthem BCBS of Ohio | |
| RSD | Blue Cross Blue Shield of Vermont | |
| RSE | Anthem BCBS of Missouri | |
| RSF | Unassigned | |
| RSG | Blue Cross Blue Shield of Massachusetts | |
| RSH | BCBS of Western New York | |
| RSI | Anthem BCBS of Wisconsin | |
| RSJ | Blue Cross Blue Shield of Michigan | |
| RSK | Blue Cross Blue Shield of South Carolina | |
| RSL | Anthem BCBS of Missouri | |
| RSM | Anthem BCBS of Virginia | |
| RSN | Blue Cross Blue Shield of Illinois | |
| RSO | Blue Shield of California | |
| RSP | Unassigned | |
| RSQ | Independence Blue Cross | |
| RSR | Blue Cross Blue Shield of Illinois | |
| RSS | Anthem BCBS of Georgia | |
| RST | Capital BlueCross | |
| RSU | Blue Cross Blue Shield of Alabama | |
| RSV | Blue Cross Blue Shield of Minnesota | |
| RSW | Wellmark BCBS | |
| RSX | Independence Blue Cross | |
| RSY | Blue Cross of California | |
| RSZ | Blue Cross Blue Shield of Alabama | |
| RTA | Blue Cross Blue Shield of North Carolina | |
| RTB | Anthem BCBS of Wisconsin | |
| RTC | Blue Cross Blue Shield of South Carolina | |
| RTD | Anthem BCBS of Wisconsin | |
| RTE | Blue Cross Blue Shield of North Carolina | |
| RTF | Anthem BCBS of Georgia | |
| RTG | Blue Cross Blue Shield of Tennessee | |
| RTH | Blue Cross Blue Shield of Michigan | |
| RTI | Wellmark BCBS | |
| RTJ | Unassigned | |
| RTK | Blue Cross Blue Shield of South Carolina | |
| RTL | Blue Cross Blue Shield of South Carolina | |
| RTM | Regence Blue Cross Blue Shield of Utah | |
| RTN | Blue Cross Blue Shield of Illinois | |
| RTO | Blue Cross Blue Shield of Massachusetts | |
| RTP | Blue Cross Blue Shield of Tennessee | |
| RTQ | Unassigned | |
| RTR | Unassigned | |
| RTS | Wellmark BCBS | |
| RTT | Blue Cross Blue Shield of South Carolina | |
| RTU | Blue Cross Blue Shield of Alabama | |
| RTV | Premera Blue Cross | |
| RTW | Anthem BCBS of Georgia | |
| RTX | Unassigned | |
| RTY | Unassigned | |
| RTZ | BCBS of Western New York | |
| RUA | Wellmark BCBS | |
| RUB | Blue Cross Blue Shield of Texas | |
| RUC | Anthem BCBS of Missouri | |
| RUD | Wellmark BCBS | |
| RUE | Blue Cross Blue Shield of Alabama | |
| RUF | Wellmark BCBS | |
| RUG | Horizon Blue Cross Blue Shield of New Jersey | |
| RUH | Blue Cross Blue Shield of Minnesota | |
| RUI | Unassigned | |
| RUJ | Premera Blue Cross | |
| RUK | Blue Cross Blue Shield of Kansas City | |
| RUL | CareFirst BCBS | |
| RUM | Blue Cross Blue Shield of Texas | |
| RUN | Blue Cross Blue Shield of Illinois | |
| RUO | Wellmark BCBS | |
| RUP | Wellmark BCBS | |
| RUQ | Highmark BCBS of Pennsylvania | |
| RUR | Blue Cross Blue Shield of Massachusetts | |
| RUS | Blue Cross Blue Shield of Massachusetts | |
| RUT | Independence Blue Cross | |
| RUU | CareFirst BCBS | |
| RUV | Blue Cross Blue Shield of Illinois | |
| RUW | Independence Blue Cross | |
| RUX | CareFirst BCBS | |
| RUY | CareFirst BCBS | |
| RUZ | Blue Cross Blue Shield of Illinois | |
| RVA | BCBS of Western New York | |
| RVB | Blue Cross Blue Shield of South Carolina | |
| RVC | Blue Cross Blue Shield of Illinois | |
| RVD | BCBS of Western New York | |
| RVE | BCBS of Illinois | |
| RVF | Blue Cross Blue Shield of Alabama |
| RVG | Blue Cross of California | |
| RVH | CareFirst BCBS | |
| RVI | Wellmark BCBS | |
| RVJ | Wellmark BCBS | |
| RVK | Unassigned | |
| RVL | Anthem BCBS of Georgia | |
| RVM | Blue Cross Blue Shield of Minnesota | |
| RVN | Blue Cross Blue Shield of Nebraska | |
| RVO | Blue Shield of California | |
| RVP | Blue Cross of California | |
| RVQ | Blue Cross of California | |
| RVR | Premera Blue Cross | |
| RVS | Blue Cross of California | |
| RVT | Blue Shield of California | |
| RVU | Wellmark BCBS | |
| RVV | Blue Cross Blue Shield of Illinois | |
| RVW | BCBS of Massachusetts | |
| RVX | Anthem BCBS of Kentucky | |
| RVY | Blue Cross of California | |
| RVZ | Empire Blue Cross Blue Shield | |
| RWA | Blue Cross Blue Shield of Texas | |
| RWB | Empire Blue Cross Blue Shield | |
| RWC | Independence Blue Cross | |
| RWD | BCBS of Western New York | |
| RWE | Unassigned | |
| RWF | CareFirst BCBS | |
| RWG | Regence Blue Cross Blue Shield of Oregon | |
| RWH | Anthem BCBS of Connecticut | |
| RWI | Blue Cross Blue Shield of Minnesota | |
| RWJ | Anthem BCBS of Missouri | |
| RWK | CareFirst BCBS | |
| RWL | Blue Cross Blue Shield of Massachusetts | |
| RWM | Horizon Blue Cross Blue Shield of New Jersey | |
| RWN | Unassigned | |
| RWO | Highmark BCBS of Pennsylvania | |
| RWP | Blue Cross of California | |
| RWQ | Unassigned | |
| RWR | Wellmark BCBS | |
| RWS | Blue Cross Blue Shield of Minnesota | |
| RWT | Anthem BCBS of Missouri | |
| RWU | Anthem BCBS of Missouri | |
| RWV | Anthem BCBS of Missouri | |
| RWW | Blue Shield of California | |
| RWX | Horizon Blue Cross Blue Shield of New Jersey | |
| RWY | Horizon Blue Cross Blue Shield of New Jersey | |
| RWZ | Anthem BCBS of Kentucky | |
| RXA | Blue Cross Blue Shield of Texas | |
| RXB | Blue Cross Blue Shield of Texas | |
| RXC | Blue Cross Blue Shield of Texas | |
| RXD | Blue Cross Blue Shield of Texas | |
| RXE | Blue Cross Blue Shield of Illinois | |
| RXF | Regence Blue Cross Blue Shield of Oregon | |
| RXG | Anthem BCBS of Connecticut | |
| RXH | Highmark BCBS of Pennsylvania | |
| RXI | Blue Cross Blue Shield of Alabama | |
| RXJ | Unassigned | |
| RXK | Blue Cross Blue Shield of Illinois | |
| RXL | Blue Cross of California | |
| RXM | Highmark BCBS of Pennsylvania | |
| RXN | Blue Cross Blue Shield of Texas | |
| RXO | Blue Cross of California | |
| RXP | Blue Cross Blue Shield of Minnesota | |
| RXQ | Wellmark BCBS | |
| RXR | Horizon Blue Cross Blue Shield of New Jersey | |
| RXS | Anthem BCBS of Ohio | |
| RXT | Blue Cross Blue Shield of Michigan | |
| RXU | Anthem BCBS of New Hampshire | |
| RXV | CareFirst BCBS | |
| RXW | Capital BlueCross | |
| RXX | Blue Cross Blue Shield of Illinois | |
| RXY | Unassigned | |
| RXZ | Blue Cross Blue Shield of Massachusetts | |
| RYA | Blue Cross Blue Shield of Minnesota | |
| RYB | Independence Blue Cross | |
| RYC | Excellus BCBS | |
| RYD | Blue Cross Blue Shield of Illinois | |
| RYE | Anthem BCBS of Connecticut | |
| RYF | Blue Cross Blue Shield of Illinois | |
| RYG | Anthem BCBS of Ohio | |
| RYH | Blue Cross of Idaho | |
| RYI | Regence Blue Cross Blue Shield of Oregon | |
| RYJ | Horizon Blue Cross Blue Shield of New Jersey | |
| RYK | Anthem BCBS of Ohio | |
| RYL | Anthem BCBS of Georgia | |
| RYM | Blue Shield of California | |
| RYN | Blue Shield of California | |
| RYO | Anthem BCBS of Ohio | |
| RYP | Anthem BCBS of Georgia | |
| RYQ | BCBS of Florida | |
| RYR | Blue Cross Blue Shield of Michigan | |
| RYS | Blue Cross Blue Shield of Illinois | |
| RYT | Blue Shield of California | |
| RYU | Blue Cross Blue Shield of Alabama | |
| RYV | Anthem BCBS of Connecticut | |
| RYW | Anthem BCBS of Virginia | |
| RYX | Blue Cross of California | |
| RYY | Anthem BCBS of Georgia | |
| RYZ | Unassigned | |
| RZA | Anthem BCBS of Ohio | |
| RZB | Blue Cross Blue Shield of Illinois |
| RZC | Empire Blue Cross Blue Shield | |
| RZD | Blue Cross Blue Shield of Texas | |
| RZE | Blue Cross Blue Shield of Illinois | |
| RZF | Anthem BCBS of Ohio | |
| RZG | Premera Blue Cross | |
| RZH | Wellmark BCBS | |
| RZI | Blue Cross Blue Shield of Michigan | |
| RZJ | Blue Cross of California | |
| RZK | Blue Cross Blue Shield of Illinois | |
| RZL | Independence Blue Cross | |
| RZM | Blue Cross Blue Shield of Tennessee | |
| RZN | Blue Cross Blue Shield of Tennessee | |
| RZO | Blue Shield of California | |
| RZP | Blue Cross Blue Shield of Alabama | |
| RZQ | Blue Cross of Idaho | |
| RZR | Independence Blue Cross | |
| RZS | Blue Cross Blue Shield of Alabama | |
| RZT | Anthem BCBS of Connecticut | |
| RZU | Blue Cross Blue Shield of Illinois | |
| RZV | Anthem BCBS of Ohio | |
| RZW | BCBS of Western New York | |
| RZX | Premera Blue Cross | |
| RZY | BCBS of Western New York | |
| RZZ | Anthem BCBS of Missouri | |
| VW | Blue Cross Blue Shield of Massachusetts |