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
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 773-965 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN01 | IL | |
| 773-967 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHICGOZN09 | IL | |
| 773-972 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN01 | IL | |
| 773-973 | ILLINOIS BELL TEL CO | 9329 | CHICGOZN02 | IL | |
| 773-974 | PAETEC ITEL, LLC | 829J | CHICGOZN11 | IL | |
| 773-975 | ILLINOIS BELL TEL CO | 9329 | CHICGOZN04 | IL | |
| 773-976 | IL | ||||
| 773-977 | PAETEC ITEL, LLC | 829J | CHICGOZN02 | IL | |
| 773-978 | ILLINOIS BELL TEL CO | 9329 | CHICGOZN09 | IL | |
| 773-981 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHICGOZN10 | IL | |
| 773-985 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHICGOZN11 | IL | |
| 773-988 | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL | |
| 773-989 | ILLINOIS BELL TEL CO | 9329 | CHICGOZN02 | IL | |
| 773-991 | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL | |
| 773-992 | ILLINOIS BELL TEL CO | 9329 | CHICGOZN03 | IL | |
| 773-994 | ILLINOIS BELL TEL CO | 9329 | CHICGOZN07 | IL | |
| 773-995 | ILLINOIS BELL TEL CO | 9329 | CHICGOZN10 | IL | |
| 774-209 | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HARWICH | MA | |
| 774-211 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MA | |
| 774-216 | METROPCS, INC. | 5562 | BREWSTER | MA | |
| 774-224 | ONVOY, LLC - MA | 892D | CHARLTON | MA | |
| 774-225 | METROPCS, INC. | 5562 | ATTLEBORO | MA | |
| 774-268 | METROPCS, INC. | 5562 | DENNIS | MA | |
| 774-291 | METROPCS, INC. | 5562 | FRANKLIN | MA | |
| 774-292 | METROPCS, INC. | 5562 | HOPKINTON | MA | |
| 774-296 | ONVOY, LLC - MA | 892D | BROCKTON | MA | |
| 774-298 | BANDWIDTH.COM CLEC, LLC - MA | 990E | OAKHAM | MA | |
| 774-300 | METROPCS, INC. | 5562 | FOXBORO | MA | |
| 774-311 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MA | |
| 774-321 | ONVOY, LLC - MA | 892D | AUBURN | MA | |
| 774-342 | ONVOY SPECTRUM, LLC | 624H | SPENCER | MA | |
| 774-363 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SAGAMORE | MA | |
| 774-367 | ONVOY, LLC - MA | 892D | ASSONET | MA | |
| 774-370 | ONVOY, LLC - MA | 892D | W BOYLSTON | MA | |
| 774-373 | COMCAST IP PHONE, LLC | 318J | MIDDLEBORO | MA | |
| 774-377 | ONVOY, LLC - MA | 892D | MATTAPOSTT | MA | |
| 774-383 | ONVOY, LLC - MA | 892D | WELLFLEET | MA | |
| 774-411 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MA | |
| 774-418 | EDGETEL, LLC | 179J | WORCESTER | MA | |
| 774-425 | ONVOY, LLC - MA | 892D | NEWBEDFORD | MA | |
| 774-426 | COMCAST IP PHONE, LLC | 318J | PLYMOUTH | MA | |
| 774-447 | ONVOY, LLC - MA | 892D | VINEYRDHVN | MA | |
| 774-461 | COMMIO, LLC | 022H | FALL RIVER | MA | |
| 774-495 | PAETEC ITEL, LLC | 829J | WEBSTER | MA | |
| 774-500 | ONVOY, LLC - MA | 892D | DIGHTON | MA | |
| 774-511 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MA | |
| 774-525 | NUSO, LLC | 732J | WORCESTER | MA | |
| 774-530 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WORCESTER | MA | |
| 774-543 | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BARNSTABLE | MA | |
| 774-549 | COMCAST IP PHONE, LLC | 318J | EDGARTOWN | MA |
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.