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
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 918-407 | T-MOBILE USA, INC. | 6529 | TULSA | OK | |
| 918-408 | T-MOBILE USA, INC. | 6529 | TULSA | OK | |
| 918-409 | T-MOBILE USA, INC. | 6529 | TULSA | OK | |
| 918-410 | OKLAHOMA WINDSTREAM, INC. | 2011 | STILWELL | OK | |
| 918-411 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OK | |
| 918-412 | PEERLESS NETWORK OF OKLAHOMA, LLC - OK | 384H | BOKOSHE | OK | |
| 918-419 | PAETEC ITEL, LLC | 829J | SAND SPG | OK | |
| 918-420 | SOUTHWESTERN BELL | 9533 | MCALESTER | OK | |
| 918-421 | SOUTHWESTERN BELL | 9533 | MCALESTER | OK | |
| 918-422 | BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC | 1143 | WATTS | OK | |
| 918-423 | SOUTHWESTERN BELL | 9533 | MCALESTER | OK | |
| 918-424 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MCALESTER | OK | |
| 918-425 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-426 | SOUTHWESTERN BELL | 9533 | MCALESTER | OK | |
| 918-427 | SOUTHWESTERN BELL | 9533 | MULDROW | OK | |
| 918-428 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-429 | SOUTHWESTERN BELL | 9533 | MCALESTER | OK | |
| 918-430 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-431 | SOUTHWESTERN BELL | 9533 | TAHLEQUAH | OK | |
| 918-432 | WINDSTREAM OKLAHOMA, INC. | 1965 | KIOWA | OK | |
| 918-433 | SHIDLER TEL. CO. | 2023 | GRAINOLA | OK | |
| 918-434 | SALINA-SPAVINAW TEL. CO. | 2022 | SALINA | OK | |
| 918-435 | GRAND TEL. CO., INC. | 1994 | DISNEY | OK | |
| 918-436 | SOUTHWESTERN BELL | 9533 | POCOLA | OK | |
| 918-437 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-438 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-439 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-440 | UNITED STATES CELLULAR - OK | 6272 | BARTLESVL | OK | |
| 918-441 | UNITED STATES CELLULAR - OK | 6272 | MUSKOGEE | OK | |
| 918-442 | T-MOBILE USA, INC. | 6529 | TULSA | OK | |
| 918-443 | SOUTHWESTERN BELL | 9533 | CLAREMORE | OK | |
| 918-445 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-446 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-447 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-448 | UNITED STATES CELLULAR - OK | 6272 | WILBURTON | OK | |
| 918-449 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-450 | SOUTHWESTERN BELL | 9533 | TAHLEQUAH | OK | |
| 918-451 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-452 | CROSS TEL. CO. | 1985 | LONGTOWN | OK | |
| 918-453 | SOUTHWESTERN BELL | 9533 | TAHLEQUAH | OK | |
| 918-454 | CIMARRON TEL. CO. | 1982 | MARAMEC | OK | |
| 918-455 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-456 | SOUTHWESTERN BELL | 9533 | TAHLEQUAH | OK | |
| 918-457 | SOUTHWESTERN BELL | 9533 | TAHLEQUAH | OK | |
| 918-458 | SOUTHWESTERN BELL | 9533 | TAHLEQUAH | OK | |
| 918-459 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-460 | SOUTHWESTERN BELL | 9533 | TULSA | OK | |
| 918-461 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | BROKENARRW | OK | |
| 918-462 | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | SNUGHARBOR | OK | |
| 918-463 | CROSS TEL. CO. | 1985 | WARNER | OK |
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.