NumberResearchRecent prefix assignments
371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2024-05-31 | 657-752 | T-MOBILE USA, INC. | 6529 | ORANGE | CA |
| 2024-05-31 | 667-492 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEVERN | MD |
| 2024-05-31 | 669-343 | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2024-05-31 | 703-804 | IP HORIZON LLC | 515J | HERNDON | VA |
| 2024-05-31 | 727-635 | ONVOY, LLC - FL | 937C | CLEARWATER | FL |
| 2024-05-31 | 747-365 | T-MOBILE USA, INC. | 6529 | NORTHRIDGE | CA |
| 2024-05-31 | 754-334 | ONVOY, LLC - FL | 937C | HOLLYWOOD | FL |
| 2024-05-31 | 805-661 | T-MOBILE USA, INC. | 6529 | VNTRA CNTL | CA |
| 2024-05-31 | 838-289 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SCHENCTADY | NY |
| 2024-05-31 | 858-902 | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2024-05-31 | 863-364 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | LAKE WALES | FL |
| 2024-05-31 | 870-979 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BLYTHEVL | AR |
| 2024-05-31 | 920-961 | ONVOY, LLC - WI | 225C | APPLETON | WI |
| 2024-05-31 | 943-264 | POWERTEL ATLANTA LICENSES, INC. | 7473 | BUFORD | GA |
| 2024-05-30 | 228-296 | ONVOY, LLC - MS | 719E | BILOXI | MS |
| 2024-05-30 | 249-482 | Iristel Inc. | 154E | Bracebridge | — |
| 2024-05-30 | 249-483 | Iristel Inc. | 154E | Borden-Angus | — |
| 2024-05-30 | 249-485 | Iristel Inc. | 154E | Bobcaygeon | — |
| 2024-05-30 | 272-406 | ONVOY, LLC - PA | 547E | CARBONDALE | PA |
| 2024-05-30 | 307-452 | ONVOY, LLC - WY | 450F | CASPER | WY |
| 2024-05-30 | 332-295 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| 2024-05-30 | 334-931 | ONVOY, LLC - AL | 604E | MONTGOMERY | AL |
| 2024-05-30 | 365-354 | Iristel Inc. | 154E | Welland | — |
| 2024-05-30 | 365-612 | Iristel Inc. | 154E | Fort Erie | — |
| 2024-05-30 | 365-760 | Iristel Inc. | 154E | Dunnville | — |
| 2024-05-30 | 769-339 | ONVOY, LLC - MS | 719E | COLUMBIA | MS |
| 2024-05-30 | 971-488 | T-MOBILE USA, INC. | 6529 | TILLAMOOK | OR |
| 2024-05-30 | 980-492 | ONVOY, LLC - NC | 638E | CHNGRVLNDS | NC |
| 2024-05-30 | 984-380 | ONVOY, LLC - NC | 638E | DURHAM | NC |
| 2024-05-29 | 262-454 | FIVE9, INC. | 598J | MILWAUKZN2 | WI |
| 2024-05-29 | 346-824 | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2024-05-29 | 350-224 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ATWATER | CA |
| 2024-05-29 | 437-893 | Fibernetics Corporation | 464D | Toronto | — |
| 2024-05-29 | 474-777 | Fibernetics Corporation | 464D | Moosomin | — |
| 2024-05-29 | 474-888 | Fibernetics Corporation | 464D | Biggar | — |
| 2024-05-29 | 504-497 | ONVOY, LLC - LA | 749E | NEWORLEANS | LA |
| 2024-05-29 | 551-395 | ONVOY, LLC - NJ | 637C | CLOSTER | NJ |
| 2024-05-29 | 639-708 | Iristel Inc. | 154E | Rosthern | — |
| 2024-05-29 | 737-390 | ONVOY, LLC - TX | 903C | BASTROP | TX |
| 2024-05-29 | 840-261 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2024-05-29 | 872-370 | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2024-05-29 | 873-447 | Iristel Inc. | 154E | Umiujaq | — |
| 2024-05-29 | 901-640 | ONVOY, LLC - TN | 525E | MEMPHIS | TN |
| 2024-05-28 | 216-530 | IP HORIZON LLC | 515J | INDEPNDNCE | OH |
| 2024-05-28 | 227-244 | HD CARRIER LLC | 321J | RIDGE | MD |
| 2024-05-28 | 317-206 | ONVOY SPECTRUM, LLC | 624H | FRANKLIN | IN |
| 2024-05-28 | 346-823 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2024-05-28 | 351-244 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | ACTON | MA |
| 2024-05-28 | 838-287 | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | BALLSTNSPA | NY |
| 2024-05-27 | 263-362 | TELUS Mobility | 8303 | Montreal | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.