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
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 937-862 | OHIO BELL TEL CO | 9321 | SPRING VLY | OH | |
| 937-863 | OHIO BELL TEL CO | 9321 | ENON | OH | |
| 937-864 | OHIO BELL TEL CO | 9321 | ENON | OH | |
| 937-865 | OHIO BELL TEL CO | 9321 | MSBGWCRLTN | OH | |
| 937-866 | OHIO BELL TEL CO | 9321 | MSBGWCRLTN | OH | |
| 937-869 | T-MOBILE USA, INC. | 6529 | URBANA | OH | |
| 937-873 | OHIO BELL TEL CO | 9321 | FAIRBORN | OH | |
| 937-874 | LEVEL 3 TELECOM OF OHIO, LLC - OH | 7460 | FAIRBORN | OH | |
| 937-875 | T-MOBILE USA, INC. | 6529 | TROY | OH | |
| 937-877 | METROPCS, INC. | 5562 | TIPP CITY | OH | |
| 937-878 | OHIO BELL TEL CO | 9321 | FAIRBORN | OH | |
| 937-879 | OHIO BELL TEL CO | 9321 | FAIRBORN | OH | |
| 937-882 | OHIO BELL TEL CO | 9321 | DONNELSVL | OH | |
| 937-883 | OHIO BELL TEL CO | 9321 | SOUTHSOLON | OH | |
| 937-884 | FRONTIER NORTH, INC. - OH | 0615 | PHILLIPSBG | OH | |
| 937-885 | OHIO BELL TEL CO | 9321 | CENTERVLLE | OH | |
| 937-886 | OHIO BELL TEL CO | 9321 | CENTERVLLE | OH | |
| 937-890 | OHIO BELL TEL CO | 9321 | VANDALIA | OH | |
| 937-898 | OHIO BELL TEL CO | 9321 | VANDALIA | OH | |
| 937-899 | TWC IP ENABLED SERVICES, LLC | 793K | UNION CITY | OH | |
| 937-901 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-902 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-903 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-904 | LEVEL 3 TELECOM OF OHIO, LLC - OH | 7460 | DAYTON | OH | |
| 937-910 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | DAYTON | OH | |
| 937-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OH | |
| 937-912 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | BEAVERCREK | OH | |
| 937-913 | NUSO, LLC | 732J | DAYTON | OH | |
| 937-914 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | MSBGWCRLTN | OH | |
| 937-916 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | PIQUA | OH | |
| 937-917 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | SPRINGFLD | OH | |
| 937-918 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | VANDALIA | OH | |
| 937-919 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | XENIA | OH | |
| 937-921 | AMERICAN MESSAGING SERVICES, LLC | 9748 | PIQUA | OH | |
| 937-923 | AMERICAN MESSAGING SERVICES, LLC | 9748 | NEWCARLISL | OH | |
| 937-925 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | OH | |
| 937-926 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | OH | |
| 937-927 | OHIO BELL TEL CO | 9321 | SUGRTRERDG | OH | |
| 937-935 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | BELLEFNTAN | OH | |
| 937-939 | TELNYX LLC | 073H | HILLSBORO | OH | |
| 937-940 | SPOK, INC. | 6630 | DAYTON | OH | |
| 937-947 | FRONTIER NORTH, INC. - OH | 0615 | LAURA | OH | |
| 937-950 | OH | ||||
| 937-958 | OH | ||||
| 937-959 | OH | ||||
| 937-962 | FRONTIER NORTH, INC. - OH | 0615 | LEWISBURG | OH | |
| 937-964 | OHIO BELL TEL CO | 9321 | NO HAMPTON | OH | |
| 937-965 | TWC IP ENABLED SERVICES, LLC | 793K | DAYTON | OH | |
| 937-968 | BRIGHTSPEED OF INDIANA, LLC | 0832 | UNION CITY | OH | |
| 937-969 | OHIO BELL TEL CO | 9321 | TREMONT CY | 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.