NumberResearchRecent prefix assignments
380 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
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
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 971-711 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OR | |
| 971-811 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OR | |
| 971-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OR | |
| 971-925 | XO OREGON, INC. | 4980 | CLACKAMAS | OR | |
| 971-950 | OR | ||||
| 971-958 | OR | ||||
| 971-959 | OR | ||||
| 971-976 | OR | ||||
| 971-998 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTLAND | OR | |
| 972-201 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 972-202 | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | PLANO | TX | |
| 972-203 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-204 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-205 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | PLANO | TX | |
| 972-206 | SOUTHWESTERN BELL | 9533 | GRANDPRARI | TX | |
| 972-208 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | PLANO | TX | |
| 972-210 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | TERRELL | TX | |
| 972-211 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | TX | |
| 972-212 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | PLANO | TX | |
| 972-213 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | GRANDPRARI | TX | |
| 972-214 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FRISCO | TX | |
| 972-215 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | IRVING | TX | |
| 972-216 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-217 | SOUTHWESTERN BELL | 9533 | DE SOTO | TX | |
| 972-218 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-219 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | LEWISVILLE | TX | |
| 972-220 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | DALLAS | TX | |
| 972-221 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | LEWISVILLE | TX | |
| 972-222 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-223 | SOUTHWESTERN BELL | 9533 | DE SOTO | TX | |
| 972-224 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-225 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-226 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-227 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-228 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-229 | SPOK, INC. | 6630 | GRANDPRARI | TX | |
| 972-230 | SOUTHWESTERN BELL | 9533 | DE SOTO | TX | |
| 972-231 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-232 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 972-233 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-234 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-235 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-236 | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | CARROLLTON | TX | |
| 972-237 | SOUTHWESTERN BELL | 9533 | GRANDPRARI | TX | |
| 972-238 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-239 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-240 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | PLANO | TX | |
| 972-241 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 972-242 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | CARROLLTON | TX | |
| 972-243 | SOUTHWESTERN BELL | 9533 | DALLAS | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.