NumberResearchRecent prefix assignments
352 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 787-527 | PUERTO RICO TELCO DBA CLARO PUERTO RICO | 4823 | TRUJILLOAL | PR | |
| 787-528 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-530 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-531 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-532 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-533 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-534 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | ROOSEVLTRD | PR | |
| 787-535 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | CAYEY | PR | |
| 787-536 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-537 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | SALINAS | PR | |
| 787-539 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-540 | BEEPER EXPRESS OF PUERTO RICO, INC. | 6991 | SANTURCE | PR | |
| 787-541 | BEEPER EXPRESS OF PUERTO RICO, INC. | 6991 | SANTURCE | PR | |
| 787-542 | BEEPER EXPRESS OF PUERTO RICO, INC. | 6991 | SANTURCE | PR | |
| 787-544 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | CAMUY | PR | |
| 787-545 | LIBERTY COMMUNICATIONS OF PUERTO RICO LLC | 955G | TOA ALTA | PR | |
| 787-547 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-551 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | MOCA | PR | |
| 787-552 | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR | |
| 787-554 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-555 | MULTIPLE OCN LISTING | MULT | DIR ASST | PR | |
| 787-561 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | JUNCOS | PR | |
| 787-562 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-563 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | LARES | PR | |
| 787-567 | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR | |
| 787-568 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-569 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | GUANICA | PR | |
| 787-570 | IP SOLUTIONS, INC. - PR | 266G | RIOPIEDRAS | PR | |
| 787-571 | IP SOLUTIONS, INC. - PR | 266G | RIOPIEDRAS | PR | |
| 787-572 | BORINQUEN BEEPERS, INC. | 6933 | SANTURCE | PR | |
| 787-573 | BORINQUEN BEEPERS, INC. | 6933 | BAYAMONNOR | PR | |
| 787-574 | BORINQUEN BEEPERS, INC. | 6933 | BAYAMONNOR | PR | |
| 787-575 | BORINQUEN BEEPERS, INC. | 6933 | BAYAMONNOR | PR | |
| 787-576 | BORINQUEN BEEPERS, INC. | 6933 | BAYAMONNOR | PR | |
| 787-577 | BORINQUEN BEEPERS, INC. | 6933 | BAYAMONNOR | PR | |
| 787-578 | BORINQUEN BEEPERS, INC. | 6933 | BAYAMONNOR | PR | |
| 787-580 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | JUANA DIAZ | PR | |
| 787-581 | LINK TECH CORPORATION | 4057 | SANTURCE | PR | |
| 787-582 | LINK TECH CORPORATION | 4057 | SANTURCE | PR | |
| 787-583 | LINK TECH CORPORATION | 4057 | SANTURCE | PR | |
| 787-584 | LINK TECH CORPORATION | 4057 | SANTURCE | PR | |
| 787-585 | LIBERTY MOBILE PUERTO RICO INC. | 639J | TRUJILLOAL | PR | |
| 787-588 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | JAYUYA | PR | |
| 787-589 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | AGUADA | PR | |
| 787-591 | PR | ||||
| 787-593 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-594 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-596 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-598 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-599 | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCE | PR |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.