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
2017-12-18 925-574-9XXX ONVOY, LLC - CA 649C DUBLN-SNRM CA
2017-12-14 916-831-7XXX ONVOY, LLC - CA 649C ELK GROVE CA
2017-12-13 650-379-0XXX ONVOY, LLC - CA 649C SSNFRNCSCO CA
2017-12-12 424-832-2XXX ONVOY, LLC - CA 649C W ANGELES CA
2017-12-12 530-428-8XXX ONVOY, LLC - CA 649C LOYALTON CA
2017-12-12 530-684-4XXX ONVOY, LLC - CA 649C MONTAGUE CA
2017-12-12 530-882-0XXX ONVOY, LLC - CA 649C RICHVALE CA
2017-12-12 562-501-3XXX ONVOY, LLC - CA 649C LA HABRA CA
2017-12-12 562-501-4XXX ONVOY, LLC - CA 649C LA HABRA CA
2017-12-12 628-240-0XXX ONVOY, LLC - CA 649C SAN RAFAEL CA
2017-12-12 628-240-1XXX ONVOY, LLC - CA 649C SAN RAFAEL CA
2017-12-12 951-441-2XXX ONVOY, LLC - CA 649C ARLINGTON CA
2017-12-12 951-441-3XXX ONVOY, LLC - CA 649C ARLINGTON CA
2017-12-11 626-406-2XXX ONVOY, LLC - CA 649C EL MONTE CA
2017-12-11 626-406-3XXX ONVOY, LLC - CA 649C EL MONTE CA
2017-12-08 213-319-4XXX ONVOY, LLC - CA 649C LSAN DA 14 CA
2017-12-08 213-319-5XXX ONVOY, LLC - CA 649C LSAN DA 14 CA
2017-12-08 213-319-6XXX ONVOY, LLC - CA 649C LSAN DA 14 CA
2017-12-08 510-890-3XXX ONVOY, LLC - CA 649C RICHMOND CA
2017-12-08 510-890-4XXX ONVOY, LLC - CA 649C RICHMOND CA
2017-12-08 661-454-0XXX ONVOY, LLC - CA 649C DELANO CA
2017-12-07 323-530-1XXX ONVOY, LLC - CA 649C MONTEBELLO CA
2017-12-07 323-530-2XXX ONVOY, LLC - CA 649C MONTEBELLO CA
2017-12-07 442-291-1XXX ONVOY, LLC - CA 649C VISTA CA
2017-12-07 442-291-2XXX ONVOY, LLC - CA 649C VISTA CA
2017-12-07 650-484-5XXX ONVOY, LLC - CA 649C SAN MATEO CA
2017-12-07 650-525-2XXX ONVOY, LLC - CA 649C SAN MATEO CA
2017-12-06 442-249-5XXX ONVOY, LLC - CA 649C VTVL ADLN CA
2017-11-28 442-263-7XXX ONVOY, LLC - CA 649C PAUMA VLY CA
2017-11-28 669-268-2XXX ONVOY, LLC - CA 649C CAMPBELL CA
2017-11-28 669-268-3XXX ONVOY, LLC - CA 649C CAMPBELL CA
2017-11-27 442-296-6XXX ONVOY, LLC - CA 649C CROWLEY LK CA
2017-11-27 657-441-0XXX ONVOY, LLC - CA 649C WESTMINSTR CA
2017-11-27 657-441-1XXX ONVOY, LLC - CA 649C WESTMINSTR CA
2017-11-27 669-454-3XXX ONVOY, LLC - CA 649C SUNNYVALE CA
2017-11-22 424-401-2XXX ONVOY, LLC - CA 649C LOMITA CA
2017-11-22 424-401-3XXX ONVOY, LLC - CA 649C LOMITA CA
2017-11-22 510-519-2XXX ONVOY, LLC - CA 649C OKLD ALMD CA
2017-11-22 510-519-3XXX ONVOY, LLC - CA 649C OKLD ALMD CA
2017-11-22 714-980-4XXX ONVOY, LLC - CA 649C GARDEN GRV CA
2017-11-21 323-940-5XXX ONVOY, LLC - CA 649C LSAN DA 04 CA
2017-11-21 323-940-6XXX ONVOY, LLC - CA 649C LSAN DA 04 CA
2017-11-21 619-439-0XXX ONVOY, LLC - CA 649C LA MESA CA
2017-11-21 619-439-1XXX ONVOY, LLC - CA 649C LA MESA CA
2017-11-21 661-403-4XXX ONVOY, LLC - CA 649C PLDL PLDL CA
2017-11-21 661-403-5XXX ONVOY, LLC - CA 649C PLDL PLDL CA
2017-11-21 747-344-0XXX ONVOY, LLC - CA 649C BRBN BRBN CA
2017-11-21 760-640-9XXX ONVOY, LLC - CA 649C BLYTHE CA
2017-11-21 805-837-0XXX ONVOY, LLC - CA 649C SANBARBARA CA
2017-11-21 805-837-1XXX ONVOY, LLC - CA 649C SANBARBARA 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.