NumberResearchRecent prefix assignments
355 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
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 738-211 | CA | ||||
| 738-311 | CA | ||||
| 738-411 | CA | ||||
| 738-511 | CA | ||||
| 738-555 | CA | ||||
| 738-611 | CA | ||||
| 738-700 | CA | ||||
| 738-711 | CA | ||||
| 738-811 | CA | ||||
| 738-911 | CA | ||||
| 738-950 | CA | ||||
| 738-958 | CA | ||||
| 738-959 | CA | ||||
| 738-976 | CA | ||||
| 740-201 | LEVEL 3 TELECOM OF OHIO, LLC - OH | 7460 | CHESHIRCTR | OH | |
| 740-203 | LEVEL 3 TELECOM OF OHIO, LLC - OH | 7460 | DELAWARE | OH | |
| 740-204 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | CARROLL | OH | |
| 740-205 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | LANCASTER | OH | |
| 740-206 | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | LONDON | OH | |
| 740-208 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | GALLIPOLIS | OH | |
| 740-209 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | GALLIPOLIS | OH | |
| 740-210 | SPOK, INC. | 6630 | NEWARK | OH | |
| 740-211 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OH | |
| 740-215 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LANCASTER | OH | |
| 740-219 | AERIAL COMMUNICATIONS, INC. | 6701 | STEUBENVL | OH | |
| 740-221 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ZANESVILLE | OH | |
| 740-223 | FRONTIER NORTH, INC. - OH | 0615 | MARION | OH | |
| 740-225 | AERIAL COMMUNICATIONS, INC. | 6701 | MARION | OH | |
| 740-226 | FRONTIER NORTH, INC. - OH | 0615 | BEAVER | OH | |
| 740-227 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NEWCOMRSTN | OH | |
| 740-228 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WOODSFIELD | OH | |
| 740-229 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UHRICHSVL | OH | |
| 740-230 | RAM TECHNOLOGIES, INC. - OH | 6596 | PORTSMOUTH | OH | |
| 740-232 | OHIO BELL TEL CO | 9321 | STCLAIRSVL | OH | |
| 740-242 | OHIO BELL TEL CO | 9321 | THORNVILLE | OH | |
| 740-243 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LANCASTER | OH | |
| 740-244 | AERIAL COMMUNICATIONS, INC. | 6701 | MARION | OH | |
| 740-245 | OHIO BELL TEL CO | 9321 | RIO GRANDE | OH | |
| 740-246 | OHIO BELL TEL CO | 9321 | THORNVILLE | OH | |
| 740-247 | FRONTIER NORTH, INC. - OH | 0615 | LETART FLS | OH | |
| 740-248 | AERIAL COMMUNICATIONS, INC. | 6701 | CIRCLEVL | OH | |
| 740-250 | AERIAL COMMUNICATIONS, INC. | 6701 | PORTSMOUTH | OH | |
| 740-252 | AERIAL COMMUNICATIONS, INC. | 6701 | ZANESVILLE | OH | |
| 740-253 | METROPCS, INC. | 5562 | CHILLICOTH | OH | |
| 740-254 | OHIO BELL TEL CO | 9321 | GNADENHTTN | OH | |
| 740-255 | AERIAL COMMUNICATIONS, INC. | 6701 | CAMBRIDGE | OH | |
| 740-256 | OHIO BELL TEL CO | 9321 | GUYAN | OH | |
| 740-258 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | NEWARK | OH | |
| 740-259 | FRONTIER NORTH, INC. - OH | 0615 | PORTSMOUTH | OH | |
| 740-264 | OHIO BELL TEL CO | 9321 | STEUBENVL | 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.