NumberResearch Membership · Data 09/18/2026

Recent prefix assignments

35 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026

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
ONVOY, LLC - CA 35
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
2019-11-15 949-649 ONVOY, LLC - CA 649C RNCHOVIEJO CA
2019-11-14 442-440 ONVOY, LLC - CA 649C LENWOOD CA
2019-11-14 442-441 ONVOY, LLC - CA 649C BRSW YERM CA
2019-11-14 442-443 ONVOY, LLC - CA 649C MORONGOVLY CA
2019-10-04 628-272 ONVOY, LLC - CA 649C POINTREYES CA
2019-10-04 661-884 ONVOY, LLC - CA 649C WASCO CA
2019-10-03 209-660 ONVOY, LLC - CA 649C JACKSON CA
2019-06-24 559-379 ONVOY, LLC - CA 649C LINDSAY CA
2019-05-20 951-499 ONVOY, LLC - CA 649C BANNING CA
2019-05-16 279-300 ONVOY, LLC - CA 649C SCRM MAIN CA
2019-05-03 530-670 ONVOY, LLC - CA 649C CORNING CA
2019-03-07 442-305 ONVOY, LLC - CA 649C PALMDESERT CA
2019-03-07 657-657 ONVOY, LLC - CA 649C ANAHEIM CA
2019-01-15 820-300 ONVOY, LLC - CA 649C GUADALUPE CA
2018-12-04 213-460 ONVOY, LLC - CA 649C LSAN DA 06 CA
2018-12-04 707-717 ONVOY, LLC - CA 649C FORTUNA CA
2018-12-04 707-801 ONVOY, LLC - CA 649C KENWOOD CA
2018-12-03 510-902 ONVOY, LLC - CA 649C FRNK MAIN CA
2018-12-03 510-954 ONVOY, LLC - CA 649C HAYWARD CA
2018-12-03 669-259 ONVOY, LLC - CA 649C SARATOGA CA
2018-10-22 442-304 ONVOY, LLC - CA 649C EAGLE MT CA
2018-08-31 279-201 ONVOY, LLC - CA 649C FAIR OAKS CA
2018-08-31 510-617 ONVOY, LLC - CA 649C HRCUL-RODE CA
2018-08-31 707-503 ONVOY, LLC - CA 649C SEBASTOPOL CA
2018-08-22 279-972 ONVOY, LLC - CA 649C SCRM NORTH CA
2018-01-23 213-340 ONVOY, LLC - CA 649C LSAN DA 10 CA
2018-01-23 279-444 ONVOY, LLC - CA 649C SCRM MAIN CA
2018-01-23 279-777 ONVOY, LLC - CA 649C SCRM NORTH CA
2018-01-23 279-888 ONVOY, LLC - CA 649C LINCOLN CA
2018-01-23 279-999 ONVOY, LLC - CA 649C SO PLACER CA
2018-01-17 279-333 ONVOY, LLC - CA 649C ELK GROVE CA
2018-01-10 213-770 ONVOY, LLC - CA 649C LSAN DA 07 CA
2017-12-22 442-277 ONVOY, LLC - CA 649C ESCONDIDO CA
2017-12-21 510-650 ONVOY, LLC - CA 649C ELSBR-PINL CA
2017-12-21 707-615 ONVOY, LLC - CA 649C SANTA ROSA CA
2017-11-21 747-344 ONVOY, LLC - CA 649C BRBN BRBN CA
2017-11-14 530-599 ONVOY, LLC - CA 649C MARYSVILLE CA
2017-08-22 559-550 ONVOY, LLC - CA 649C FRESNO CA
2017-08-22 626-550 ONVOY, LLC - CA 649C ALHAMBRA CA
2017-08-09 916-619 ONVOY, LLC - CA 649C SCRM MAIN CA
2017-04-06 530-767 ONVOY, LLC - CA 649C CHICO CA
2017-04-06 831-273 ONVOY, LLC - CA 649C SALINAS CA
2017-03-23 951-758 ONVOY, LLC - CA 649C RIVERSIDE CA
2017-02-28 209-299 ONVOY, LLC - CA 649C STOCKTON CA
2017-02-17 424-501 ONVOY, LLC - CA 649C CULVERCITY CA
2017-01-13 213-660 ONVOY, LLC - CA 649C LSAN DA 01 CA
2016-11-21 805-853 ONVOY, LLC - CA 649C OXNARD CA
2016-11-21 909-602 ONVOY, LLC - CA 649C REDLANDS CA
2016-10-27 619-695 ONVOY, LLC - CA 649C SNDG SNDG CA
2016-10-11 951-417 ONVOY, LLC - CA 649C MURRIETA CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.