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 |
|---|---|---|---|---|---|
| 937-767 | OHIO BELL TEL CO | 9321 | YLSPGCLFTN | OH | |
| 937-768 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | XENIA | OH | |
| 937-769 | OHIO BELL TEL CO | 9321 | YLSPGCLFTN | OH | |
| 937-772 | TWC IP ENABLED SERVICES, LLC | 793K | URBANA | OH | |
| 937-773 | OHIO BELL TEL CO | 9321 | PIQUA | OH | |
| 937-775 | OHIO BELL TEL CO | 9321 | FAIRBORN | OH | |
| 937-776 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-777 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | FAIRBORN | OH | |
| 937-778 | OHIO BELL TEL CO | 9321 | PIQUA | OH | |
| 937-780 | FRONTIER NORTH, INC. - OH | 0615 | LEESBURG | OH | |
| 937-781 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-783 | FRONTIER NORTH, INC. - OH | 0615 | BLANCHESTR | OH | |
| 937-787 | FRONTIER NORTH, INC. - OH | 0615 | GRATIS | OH | |
| 937-788 | THE CHAMPAIGN TELEPHONE COMPANY | 0594 | TERREHAUTE | OH | |
| 937-795 | OHIO BELL TEL CO | 9321 | ABERDEEN | OH | |
| 937-804 | CENTURYLINK COMMUNICATIONS, LLC | 508J | LEESBURG | OH | |
| 937-809 | ONVOY SPECTRUM, LLC | 624H | DAYTON | OH | |
| 937-811 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OH | |
| 937-823 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAYTON | OH | |
| 937-824 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-825 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAYTON | OH | |
| 937-826 | FRONTIER NORTH, INC. - OH | 0615 | WOODSTOCK | OH | |
| 937-828 | FRONTIER NORTH, INC. - OH | 0615 | CATAWBA | OH | |
| 937-829 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-830 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-831 | T-MOBILE USA, INC. | 6529 | SPRINGFLD | OH | |
| 937-832 | FRONTIER NORTH, INC. - OH | 0615 | ENGLEWOOD | OH | |
| 937-833 | FRONTIER NORTH, INC. - OH | 0615 | BROOKVILLE | OH | |
| 937-834 | FRONTIER NORTH, INC. - OH | 0615 | MECHANCSBG | OH | |
| 937-835 | FRONTIER NORTH, INC. - OH | 0615 | LIBERTY | OH | |
| 937-836 | FRONTIER NORTH, INC. - OH | 0615 | ENGLEWOOD | OH | |
| 937-837 | FRONTIER NORTH, INC. - OH | 0615 | TROTWOOD | OH | |
| 937-838 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-839 | FRONTIER NORTH, INC. - OH | 0615 | WALEXNDRIA | OH | |
| 937-840 | OHIO BELL TEL CO | 9321 | HILLSBORO | OH | |
| 937-842 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | RUSSELLSPT | OH | |
| 937-843 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | RUSSELLSPT | OH | |
| 937-844 | AERIAL COMMUNICATIONS, INC. | 6701 | BELLEFNTAN | OH | |
| 937-845 | OHIO BELL TEL CO | 9321 | NEWCARLISL | OH | |
| 937-846 | OHIO BELL TEL CO | 9321 | NEWCARLISL | OH | |
| 937-847 | OHIO BELL TEL CO | 9321 | MSBGWCRLTN | OH | |
| 937-848 | OHIO BELL TEL CO | 9321 | BELLBROOK | OH | |
| 937-849 | OHIO BELL TEL CO | 9321 | MEDWAY | OH | |
| 937-850 | AMERICAN MESSAGING SERVICES, LLC | 9748 | DAYTON | OH | |
| 937-852 | AMERICAN MESSAGING SERVICES, LLC | 9748 | SPRINGFLD | OH | |
| 937-853 | PAETEC ITEL, LLC | 829J | DAYTON | OH | |
| 937-854 | FRONTIER NORTH, INC. - OH | 0615 | TROTWOOD | OH | |
| 937-855 | HANSON COMMUNICATIONS OF OHIO, LLC-GERMANTOWN | 0618 | GERMANTOWN | OH | |
| 937-857 | OHIO BELL TEL CO | 9321 | CHRISTISBG | OH | |
| 937-859 | OHIO BELL TEL CO | 9321 | MSBGWCRLTN | 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.