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
2016-05-06 510-399-1XXX ONVOY, LLC - CA 649C FRNK MAIN CA
2016-05-06 510-399-2XXX ONVOY, LLC - CA 649C FRNK MAIN CA
2016-05-06 831-900-0XXX ONVOY, LLC - CA 649C SANTA CRUZ CA
2016-05-06 831-900-9XXX ONVOY, LLC - CA 649C SANTA CRUZ CA
2016-05-06 858-299-0XXX ONVOY, LLC - CA 649C DEL MAR CA
2016-05-06 858-299-1XXX ONVOY, LLC - CA 649C DEL MAR CA
2016-05-04 510-462-7XXX ONVOY, LLC - CA 649C FRNK GRNLF CA
2016-05-04 510-462-8XXX ONVOY, LLC - CA 649C FRNK GRNLF CA
2016-04-29 628-229-1XXX ONVOY, LLC - CA 649C POINTREYES CA
2016-04-29 628-229-2XXX ONVOY, LLC - CA 649C POINTREYES CA
2016-04-27 619-329-0XXX ONVOY, LLC - CA 649C SNDG SNDG CA
2016-04-27 619-329-1XXX ONVOY, LLC - CA 649C SNDG SNDG CA
2016-04-27 619-329-2XXX ONVOY, LLC - CA 649C SNDG SNDG CA
2016-04-27 619-329-3XXX ONVOY, LLC - CA 649C SNDG SNDG CA
2016-04-25 415-965-3XXX ONVOY, LLC - CA 649C STNSN-BLNS CA
2016-04-25 415-965-6XXX ONVOY, LLC - CA 649C STNSN-BLNS CA
2016-04-21 559-540-8XXX ONVOY, LLC - CA 649C FRESNO CA
2016-04-21 559-540-9XXX ONVOY, LLC - CA 649C FRESNO CA
2016-04-21 559-548-1XXX ONVOY, LLC - CA 649C FRESNO CA
2016-04-21 559-753-2XXX ONVOY, LLC - CA 649C FRESNO CA
2016-04-21 657-325-7XXX ONVOY, LLC - CA 649C BUENA PARK CA
2016-04-21 657-325-8XXX ONVOY, LLC - CA 649C BUENA PARK CA
2016-04-21 909-402-2XXX ONVOY, LLC - CA 649C MARSHALL CA
2016-04-21 909-402-3XXX ONVOY, LLC - CA 649C MARSHALL CA
2016-04-21 925-390-0XXX ONVOY, LLC - CA 649C ECONTRCOST CA
2016-04-21 925-390-1XXX ONVOY, LLC - CA 649C ECONTRCOST CA
2016-04-19 760-784-6XXX ONVOY, LLC - CA 649C BISHOP CA
2016-04-14 415-446-1XXX ONVOY, LLC - CA 649C SAN RAFAEL CA
2016-04-14 415-918-6XXX ONVOY, LLC - CA 649C SNFC CNTRL CA
2016-04-14 415-965-0XXX ONVOY, LLC - CA 649C STNSN-BLNS CA
2016-04-14 415-965-2XXX ONVOY, LLC - CA 649C STNSN-BLNS CA
2016-04-14 628-220-0XXX ONVOY, LLC - CA 649C SNFC CNTRL CA
2016-04-14 831-218-2XXX ONVOY, LLC - CA 649C BEN LOMOND CA
2016-04-14 831-218-7XXX ONVOY, LLC - CA 649C BEN LOMOND CA
2016-04-14 831-337-0XXX ONVOY, LLC - CA 649C BOULDERCRK CA
2016-04-14 831-337-2XXX ONVOY, LLC - CA 649C BOULDERCRK CA
2016-04-14 831-999-7XXX ONVOY, LLC - CA 649C SANTA CRUZ CA
2016-04-14 831-999-8XXX ONVOY, LLC - CA 649C SANTA CRUZ CA
2016-04-13 415-301-2XXX ONVOY, LLC - CA 649C NOVATO CA
2016-04-13 415-903-6XXX ONVOY, LLC - CA 649C POINTREYES CA
2016-04-13 415-903-9XXX ONVOY, LLC - CA 649C POINTREYES CA
2016-04-11 442-202-1XXX ONVOY, LLC - CA 649C BRAWLEY CA
2016-04-11 442-202-2XXX ONVOY, LLC - CA 649C BRAWLEY CA
2016-04-11 628-877-2XXX ONVOY, LLC - CA 649C CORTEMADRA CA
2016-04-11 628-877-3XXX ONVOY, LLC - CA 649C CORTEMADRA CA
2016-04-11 628-877-4XXX ONVOY, LLC - CA 649C CORTEMADRA CA
2016-04-11 805-261-1XXX ONVOY, LLC - CA 649C SIMIVALLEY CA
2016-04-11 805-261-2XXX ONVOY, LLC - CA 649C SIMIVALLEY CA
2016-04-11 805-507-2XXX ONVOY, LLC - CA 649C VNTRA CNTL CA
2016-04-11 805-507-3XXX ONVOY, LLC - CA 649C VNTRA CNTL 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.