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
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2024-09-03 | 531-370 | ALLO COMMUNICATIONS LLC | 907K | FREMONT | NE |
| 2024-09-03 | 645-227 | SHELCOMM | 0051 | KEYS | FL |
| 2024-09-03 | 667-491 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PIKESVILLE | MD |
| 2024-09-03 | 720-720 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2024-09-03 | 728-216 | SHELCOMM | 0051 | BOCA RATON | FL |
| 2024-09-03 | 728-217 | SHELCOMM | 0051 | BOYNTONBCH | FL |
| 2024-09-03 | 728-218 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | BOCA RATON | FL |
| 2024-09-03 | 728-219 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | WPALMBEACH | FL |
| 2024-09-03 | 754-338 | SHELCOMM | 0051 | FTLAUDERDL | FL |
| 2024-09-03 | 772-308 | SHELCOMM | 0051 | FORTPIERCE | FL |
| 2024-09-03 | 773-670 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN10 | IL |
| 2024-09-03 | 773-861 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-09-03 | 854-859 | ONVOY SPECTRUM, LLC | 624H | ANDREWS | SC |
| 2024-09-03 | 954-631 | SHELCOMM | 0051 | HOLLYWOOD | FL |
| 2024-08-30 | 206-610 | T-MOBILE USA, INC. | 6529 | RICHMNDBCH | WA |
| 2024-08-30 | 213-859 | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2024-08-30 | 213-953 | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 02 | CA |
| 2024-08-30 | 219-387 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MERRILLVL | IN |
| 2024-08-30 | 223-367 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LEBANON | PA |
| 2024-08-30 | 229-691 | ONVOY SPECTRUM, LLC | 624H | PAVO | GA |
| 2024-08-30 | 350-230 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2024-08-30 | 385-589 | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-08-30 | 425-570 | T-MOBILE USA, INC. | 6529 | HALLS LAKE | WA |
| 2024-08-30 | 628-312 | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2024-08-30 | 645-678 | ONVOY SPECTRUM, LLC | 624H | KEYS | FL |
| 2024-08-30 | 669-351 | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2024-08-30 | 669-352 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS NORTH | CA |
| 2024-08-30 | 669-353 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS WEST | CA |
| 2024-08-30 | 737-396 | FIVE9, INC. | 598J | AUSTIN | TX |
| 2024-08-30 | 747-372 | T-MOBILE USA, INC. | 6529 | GLENDALE | CA |
| 2024-08-30 | 747-373 | T-MOBILE USA, INC. | 6529 | CANOGAPARK | CA |
| 2024-08-30 | 769-967 | ONVOY SPECTRUM, LLC | 624H | NATCHEZ | MS |
| 2024-08-30 | 858-407 | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2024-08-29 | 213-853 | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2024-08-29 | 213-857 | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2024-08-29 | 224-617 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ALGONQUIN | IL |
| 2024-08-29 | 302-649 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILFORD | DE |
| 2024-08-29 | 442-470 | T-MOBILE USA, INC. | 6529 | PALMDESERT | CA |
| 2024-08-29 | 567-464 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BRYAN | OH |
| 2024-08-29 | 619-999 | WIDE VOICE, LLC - CA | 252F | RNCHOSANFE | CA |
| 2024-08-29 | 645-226 | SHELCOMM | 0051 | MIAMI | FL |
| 2024-08-29 | 669-349 | T-MOBILE USA, INC. | 6529 | SNJS NORTH | CA |
| 2024-08-29 | 714-302 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2024-08-29 | 716-865 | IP HORIZON LLC | 515J | NIAGARAFLS | NY |
| 2024-08-28 | 239-487 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NO NAPLES | FL |
| 2024-08-28 | 329-227 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NEWBURGH | NY |
| 2024-08-28 | 346-805 | AERIAL COMMUNICATIONS, INC. | 6701 | HUMBLE | TX |
| 2024-08-28 | 701-991 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FARGO | ND |
| 2024-08-28 | 737-395 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2024-08-28 | 773-705 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN04 | IL |
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.