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
2023-05-12 341-232 ONVOY, LLC - CA 649C HAYWARD CA
2023-04-12 213-659 ONVOY, LLC - CA 649C LSAN DA 09 CA
2023-04-12 279-236 ONVOY, LLC - CA 649C RSVL MAIN CA
2023-04-12 341-230 ONVOY, LLC - CA 649C RICHMOND CA
2023-04-07 213-606 ONVOY, LLC - CA 649C LSAN DA 08 CA
2023-04-07 213-657 ONVOY, LLC - CA 649C LSAN DA 13 CA
2023-04-07 213-658 ONVOY, LLC - CA 649C LSAN DA 02 CA
2023-04-07 562-647 ONVOY, LLC - CA 649C NORWALK CA
2023-04-07 562-670 ONVOY, LLC - CA 649C WHITTIER CA
2023-04-07 650-706 ONVOY, LLC - CA 649C SAN MATEO CA
2023-04-07 650-710 ONVOY, LLC - CA 649C SNFC JUNPR CA
2023-04-07 657-670 ONVOY, LLC - CA 649C WESTMINSTR CA
2023-04-07 840-226 ONVOY, LLC - CA 649C POMONA CA
2023-04-07 949-762 ONVOY, LLC - CA 649C SADLBK VLY CA
2023-03-31 925-508 ONVOY, LLC - CA 649C ECONTRCOST CA
2023-03-31 951-625 ONVOY, LLC - CA 649C CORONA CA
2023-03-30 341-229 ONVOY, LLC - CA 649C OKLD MN-PD CA
2023-03-23 279-737 ONVOY, LLC - CA 649C RSVL CTHT CA
2023-03-22 279-297 ONVOY, LLC - CA 649C ELK GROVE CA
2023-03-20 858-424 ONVOY, LLC - CA 649C EL CAJON CA
2023-03-01 747-774 ONVOY, LLC - CA 649C CANOGAPARK CA
2023-01-31 820-823 ONVOY, LLC - CA 649C SANTA YNEZ CA
2023-01-20 805-970 ONVOY, LLC - CA 649C CAMARILLO CA
2023-01-20 858-398 ONVOY, LLC - CA 649C SNDG MRMS CA
2023-01-13 669-629 ONVOY, LLC - CA 649C SNJS NORTH CA
2023-01-13 747-717 ONVOY, LLC - CA 649C NO HOLLYWD CA
2023-01-13 747-727 ONVOY, LLC - CA 649C VAN NUYS CA
2023-01-13 840-804 ONVOY, LLC - CA 649C CLAREMONT CA
2023-01-13 951-721 ONVOY, LLC - CA 649C MURRIETA CA
2022-11-23 530-960 ONVOY, LLC - CA 649C BIGGS CA
2022-11-23 661-651 ONVOY, LLC - CA 649C SNCA NHCS CA
2022-11-18 279-790 ONVOY, LLC - CA 649C FAIR OAKS CA
2022-11-18 350-235 ONVOY, LLC - CA 649C CLEMENTS CA
2022-11-18 530-975 ONVOY, LLC - CA 649C GRIDLEY CA
2022-11-18 747-447 ONVOY, LLC - CA 649C SNFN SNFN CA
2022-11-18 820-380 ONVOY, LLC - CA 649C PISMOBEACH CA
2022-11-18 840-240 ONVOY, LLC - CA 649C DIAMONDBAR CA
2022-11-17 559-845 ONVOY, LLC - CA 649C DINUBA CA
2022-11-17 559-954 ONVOY, LLC - CA 649C EXETER CA
2022-11-08 626-762 ONVOY, LLC - CA 649C EL MONTE CA
2022-11-08 657-756 ONVOY, LLC - CA 649C HUNTITNBCH CA
2022-11-08 669-679 ONVOY, LLC - CA 649C SUNNYVALE CA
2022-11-04 424-724 ONVOY, LLC - CA 649C CMTN CMTN CA
2022-11-04 628-626 ONVOY, LLC - CA 649C SNFC CNTRL CA
2022-10-25 760-649 ONVOY, LLC - CA 649C ENCINITAS CA
2022-10-24 350-305 ONVOY, LLC - CA 649C YOSEMITE CA
2022-10-21 213-714 ONVOY, LLC - CA 649C LSAN DA 03 CA
2022-10-21 213-782 ONVOY, LLC - CA 649C LSAN DA 14 CA
2022-10-20 562-442 ONVOY, LLC - CA 649C WHITTIER CA
2022-10-18 530-442 ONVOY, LLC - CA 649C PLVL KYBRZ 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.