NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXAssigneeOCNRate centerState
918-464 CROSS TEL. CO. 1985 WEBBERSFLS OK
918-465 SOUTHWESTERN BELL 9533 WILBURTON OK
918-466 OKLATEL COMMUNICATIONS, INC. 2013 HITCHITA OK
918-467 SOUTHWESTERN BELL 9533 DELAWARE OK
918-468 TOTAH COMMUNICATIONS, INC. 2030 LENAPAH OK
918-469 CROSS TEL. CO. 1985 QUINTON OK
918-470 UNITED STATES CELLULAR - OK 6272 MCALESTER OK
918-471 UNITED STATES CELLULAR - OK 6272 WILBURTON OK
918-472 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 BOYNTON OK
918-473 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 CHECOTAH OK
918-474 OKLATEL COMMUNICATIONS, INC. 2013 COUNCIL HL OK
918-475 SOUTHWESTERN BELL 9533 ALLUWE OK
918-476 CONSOLIDATED COMMUNICATIONS OF OKLAHOMA COMPANY 1981 CHOUTEAU OK
918-477 SOUTHWESTERN BELL 9533 TULSA OK
918-478 SOUTHWESTERN BELL 9533 FORTGIBSON OK
918-479 SALINA-SPAVINAW TEL. CO. 2022 LOCUST GRV OK
918-481 SOUTHWESTERN BELL 9533 TULSA OK
918-482 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 HASKELL OK
918-483 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 PORTER OK
918-484 CROSS TEL. CO. 1985 PORUM OK
918-485 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 WAGONER OK
918-486 VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW 1165 COWETA OK
918-487 SOUTHWESTERN BELL 9533 BRAGGS OK
918-488 SOUTHWESTERN BELL 9533 TULSA OK
918-489 CROSS TEL. CO. 1985 GORE OK
918-491 SOUTHWESTERN BELL 9533 TULSA OK
918-492 SOUTHWESTERN BELL 9533 TULSA OK
918-493 SOUTHWESTERN BELL 9533 TULSA OK
918-494 SOUTHWESTERN BELL 9533 TULSA OK
918-495 SOUTHWESTERN BELL 9533 TULSA OK
918-496 SOUTHWESTERN BELL 9533 TULSA OK
918-497 SOUTHWESTERN BELL 9533 TULSA OK
918-498 SOUTHWESTERN BELL 9533 WUNIONTOWN OK
918-499 SOUTHWESTERN BELL 9533 TULSA OK
918-501 COMCAST IP PHONE, LLC 318J TULSA OK
918-503 COMCAST IP PHONE, LLC 318J MULDROW OK
918-506 LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TAHLEQUAH OK
918-510 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
918-511 MULTIPLE OCN LISTING MULT XXXXXXXXXX OK
918-512 LEVEL 3 TELECOM OF OKLAHOMA, LLC - OK 7632 SAPULPA OK
918-513 LEVEL 3 TELECOM OF OKLAHOMA, LLC - OK 7632 TULSA OK
918-514 LEVEL 3 TELECOM OF OKLAHOMA, LLC - OK 7632 SAND SPG OK
918-515 LEVEL 3 TELECOM OF OKLAHOMA, LLC - OK 7632 CATOOSA OK
918-516 LEVEL 3 TELECOM OF OKLAHOMA, LLC - OK 7632 OWASSO OK
918-517 LEVEL 3 TELECOM OF OKLAHOMA, LLC - OK 7632 SPERRY OK
918-518 LEVEL 3 TELECOM OF OKLAHOMA, LLC - OK 7632 JENKS OK
918-519 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
918-520 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
918-521 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
918-522 OKLAHOMA WESTERN TEL. CO. 2014 BUFFALOVLY 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.