NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

279 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days
ONVOY, LLC - CA 279
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 thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2017-05-19 510-947-3XXX ONVOY, LLC - CA 649C OKLD MN-PD CA
2017-05-19 510-993-3XXX ONVOY, LLC - CA 649C OKLD BKLY CA
2017-05-19 628-227-3XXX ONVOY, LLC - CA 649C SNFC MT-EV CA
2017-05-19 628-253-4XXX ONVOY, LLC - CA 649C SAN RAFAEL CA
2017-05-19 628-254-5XXX ONVOY, LLC - CA 649C SAUSALITO CA
2017-05-19 628-895-2XXX ONVOY, LLC - CA 649C SNFC CNTRL CA
2017-05-19 650-272-3XXX ONVOY, LLC - CA 649C PALO ALTO CA
2017-05-19 650-484-4XXX ONVOY, LLC - CA 649C SAN MATEO CA
2017-05-19 650-622-5XXX ONVOY, LLC - CA 649C SNCRL-BLMT CA
2017-05-19 650-995-5XXX ONVOY, LLC - CA 649C REDWOOD CY CA
2017-05-19 669-209-4XXX ONVOY, LLC - CA 649C SAN MARTIN CA
2017-05-19 669-213-4XXX ONVOY, LLC - CA 649C SNJS NORTH CA
2017-05-19 707-708-5XXX ONVOY, LLC - CA 649C SANTA ROSA CA
2017-05-19 831-201-5XXX ONVOY, LLC - CA 649C SANTA CRUZ CA
2017-05-19 925-660-0XXX ONVOY, LLC - CA 649C PLEASANTON CA
2017-05-18 310-620-1XXX ONVOY, LLC - CA 649C BEVERLYHLS CA
2017-05-18 424-528-0XXX ONVOY, LLC - CA 649C CMTN GRDN CA
2017-05-18 510-319-8XXX ONVOY, LLC - CA 649C FRNK OLIVR CA
2017-05-18 510-602-2XXX ONVOY, LLC - CA 649C FRNK MAIN CA
2017-05-18 510-826-5XXX ONVOY, LLC - CA 649C HAYWARD CA
2017-05-18 510-941-0XXX ONVOY, LLC - CA 649C FRNK GRNLF CA
2017-05-18 510-949-1XXX ONVOY, LLC - CA 649C HRCUL-RODE CA
2017-05-18 562-386-0XXX ONVOY, LLC - CA 649C ALAMITOS CA
2017-05-18 626-317-9XXX ONVOY, LLC - CA 649C ARCADIA CA
2017-05-18 626-545-0XXX ONVOY, LLC - CA 649C ALHAMBRA CA
2017-05-18 650-447-2XXX ONVOY, LLC - CA 649C MT VIEW CA
2017-05-18 650-476-2XXX ONVOY, LLC - CA 649C HALFMOONBY CA
2017-05-18 650-680-3XXX ONVOY, LLC - CA 649C LOS ALTOS CA
2017-05-18 657-276-6XXX ONVOY, LLC - CA 649C ANAHEIM CA
2017-05-18 657-325-2XXX ONVOY, LLC - CA 649C BUENA PARK CA
2017-05-18 707-587-2XXX ONVOY, LLC - CA 649C KELSEYVL CA
2017-05-18 707-716-0XXX ONVOY, LLC - CA 649C FRFLD-SUIS CA
2017-05-18 747-219-0XXX ONVOY, LLC - CA 649C AGOURA CA
2017-05-18 747-291-0XXX ONVOY, LLC - CA 649C BRBN BRBN CA
2017-05-18 909-288-4XXX ONVOY, LLC - CA 649C CLAREMONT CA
2017-05-18 909-479-5XXX ONVOY, LLC - CA 649C CHINO CA
2017-05-18 925-374-5XXX ONVOY, LLC - CA 649C MARTINEZ CA
2017-05-18 925-453-0XXX ONVOY, LLC - CA 649C LIVERMORE CA
2017-05-18 949-312-5XXX ONVOY, LLC - CA 649C CAPITRNVLY CA
2017-05-18 951-406-6XXX ONVOY, LLC - CA 649C ARLINGTON CA
2017-05-16 213-349-9XXX ONVOY, LLC - CA 649C LSAN DA 07 CA
2017-05-16 213-429-4XXX ONVOY, LLC - CA 649C LSAN DA 10 CA
2017-05-16 310-340-6XXX ONVOY, LLC - CA 649C HAWTHORNE CA
2017-05-16 323-289-6XXX ONVOY, LLC - CA 649C LSAN DA 12 CA
2017-05-16 323-379-1XXX ONVOY, LLC - CA 649C LSAN DA 04 CA
2017-05-16 323-689-6XXX ONVOY, LLC - CA 649C LSAN DA 08 CA
2017-05-16 323-690-1XXX ONVOY, LLC - CA 649C LSAN DA 11 CA
2017-05-16 323-999-3XXX ONVOY, LLC - CA 649C LSAN DA 03 CA
2017-05-16 424-414-2XXX ONVOY, LLC - CA 649C INGLEWOOD CA
2017-05-16 424-501-2XXX ONVOY, LLC - CA 649C CULVERCITY CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.