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
2022-10-18 951-851 ONVOY, LLC - CA 649C HEMT HEMT CA
2022-10-12 707-707 ONVOY, LLC - CA 649C NAPA CA
2022-10-06 858-438 ONVOY, LLC - CA 649C CHULAVISTA CA
2022-09-30 279-289 ONVOY, LLC - CA 649C FOLSOM CA
2022-09-28 209-209 ONVOY, LLC - CA 649C MODESTO CA
2022-09-28 350-250 ONVOY, LLC - CA 649C TRACY CA
2022-09-27 562-562 ONVOY, LLC - CA 649C NORWALK CA
2022-09-27 650-650 ONVOY, LLC - CA 649C SAN MATEO CA
2022-09-27 925-925 ONVOY, LLC - CA 649C CONCORD CA
2022-09-27 949-949 ONVOY, LLC - CA 649C CAPITRNVLY CA
2022-09-27 951-951 ONVOY, LLC - CA 649C CORONA CA
2022-09-21 949-323 ONVOY, LLC - CA 649C SADLBK VLY CA
2022-09-16 424-484 ONVOY, LLC - CA 649C TORRANCE CA
2022-09-08 650-672 ONVOY, LLC - CA 649C MILLBRAE CA
2022-09-08 650-708 ONVOY, LLC - CA 649C SSNFRNCSCO CA
2022-09-08 650-734 ONVOY, LLC - CA 649C REDWOOD CY CA
2022-09-08 747-338 ONVOY, LLC - CA 649C GLENDALE CA
2022-09-08 831-388 ONVOY, LLC - CA 649C GREENFIELD CA
2022-09-08 858-338 ONVOY, LLC - CA 649C HARBSNALPN CA
2022-09-08 951-618 ONVOY, LLC - CA 649C RIVERSIDE CA
2022-09-02 650-715 ONVOY, LLC - CA 649C SAN MATEO CA
2022-08-30 628-285 ONVOY, LLC - CA 649C SAN RAFAEL CA
2022-08-30 669-332 ONVOY, LLC - CA 649C SARATOGA CA
2022-08-09 707-916 ONVOY, LLC - CA 649C ARCATA CA
2022-08-09 707-936 ONVOY, LLC - CA 649C FRFLD-SUIS CA
2022-08-09 707-990 ONVOY, LLC - CA 649C VALLEJO CA
2022-08-05 951-614 ONVOY, LLC - CA 649C ELSINORE CA
2022-08-01 949-818 ONVOY, LLC - CA 649C IRVINE CA
2022-07-13 341-241 ONVOY, LLC - CA 649C HAYWARD CA
2022-07-13 951-612 ONVOY, LLC - CA 649C BANNING CA
2022-07-11 650-658 ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-08 341-342 ONVOY, LLC - CA 649C FRNK OLIVR CA
2022-07-06 619-815 ONVOY, LLC - CA 649C CHULAVISTA CA
2022-06-29 949-693 ONVOY, LLC - CA 649C TRABUCO CA
2022-05-09 209-935 ONVOY, LLC - CA 649C DOS PALOS CA
2022-05-09 707-818 ONVOY, LLC - CA 649C VACAVILLE CA
2022-04-29 916-964 ONVOY, LLC - CA 649C SCRM MAIN CA
2022-02-25 669-322 ONVOY, LLC - CA 649C CAMPBELL CA
2022-02-24 657-582 ONVOY, LLC - CA 649C ANAHEIM CA
2022-01-10 747-327 ONVOY, LLC - CA 649C VAN NUYS CA
2021-12-09 747-441 ONVOY, LLC - CA 649C GLENDALE CA
2021-12-08 209-901 ONVOY, LLC - CA 649C STOCKTON CA
2021-11-18 510-721 ONVOY, LLC - CA 649C OKLD MN-PD CA
2021-11-09 209-925 ONVOY, LLC - CA 649C SNRA MAIN CA
2021-11-04 657-553 ONVOY, LLC - CA 649C SANTA ANA CA
2021-11-04 669-338 ONVOY, LLC - CA 649C CAMPBELL CA
2021-11-04 951-592 ONVOY, LLC - CA 649C RIVERSIDE CA
2021-11-04 951-875 ONVOY, LLC - CA 649C BANNING CA
2021-11-03 626-702 ONVOY, LLC - CA 649C LA PUENTE CA
2021-09-16 408-381 ONVOY, LLC - CA 649C SNJS WEST 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.