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 |
|---|---|---|---|---|---|
| 937-562 | OHIO BELL TEL CO | 9321 | XENIA | OH | |
| 937-567 | AT&T ENTERPRISES, LLC | 516C | DAYTON | OH | |
| 937-568 | OHIO BELL TEL CO | 9321 | SO VIENNA | OH | |
| 937-572 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-575 | GOLDSTAR COMMUNICATIONS, LLC - OH | 9133 | SIDNEY | OH | |
| 937-578 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | MARYSVILLE | OH | |
| 937-581 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAYTON | OH | |
| 937-584 | FRONTIER NORTH, INC. - OH | 0615 | SABINA | OH | |
| 937-585 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | DE GRAFF | OH | |
| 937-586 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-587 | FRONTIER NORTH, INC. - OH | 0615 | PEEBLES | OH | |
| 937-588 | FRONTIER NORTH, INC. - OH | 0615 | SINKINGSPG | OH | |
| 937-592 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | BELLEFNTAN | OH | |
| 937-593 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | BELLEFNTAN | OH | |
| 937-594 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARYSVILLE | OH | |
| 937-596 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | JACKSONCTR | OH | |
| 937-597 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BELLEFNTAN | OH | |
| 937-599 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | BELLEFNTAN | OH | |
| 937-602 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-603 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-604 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-605 | T-MOBILE USA, INC. | 6529 | SPRINGFLD | OH | |
| 937-606 | T-MOBILE USA, INC. | 6529 | PIQUA | OH | |
| 937-608 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-609 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-611 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OH | |
| 937-613 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-614 | OH | ||||
| 937-615 | OHIO BELL TEL CO | 9321 | PIQUA | OH | |
| 937-620 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-622 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIDNEY | OH | |
| 937-623 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-624 | METROPCS, INC. | 5562 | SPRINGFLD | OH | |
| 937-626 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-627 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-628 | SPOK, INC. | 6630 | DAYTON | OH | |
| 937-629 | OHIO BELL TEL CO | 9321 | SPRINGFLD | OH | |
| 937-630 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-635 | SPOK, INC. | 6630 | ENON | OH | |
| 937-636 | SPOK, INC. | 6630 | DAYTON | OH | |
| 937-640 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-641 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-642 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | MARYSVILLE | OH | |
| 937-643 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-644 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | MARYSVILLE | OH | |
| 937-645 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | MARYSVILLE | OH | |
| 937-647 | AMERICAN MESSAGING SERVICES, LLC | 9748 | DAYTON | OH | |
| 937-649 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | BELLEFNTAN | OH | |
| 937-652 | THE CHAMPAIGN TELEPHONE COMPANY | 0594 | URBANA | OH | |
| 937-653 | THE CHAMPAIGN TELEPHONE COMPANY | 0594 | URBANA | OH |
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.