NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

34 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 — NPA 442
NEW CINGULAR WIRELESS PCS, LLC 14
ONVOY, LLC - CA 10
HD CARRIER LLC 4
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2
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
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-02-20 442-217-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C VALLEY CTR CA
2019-02-20 442-217-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C VALLEY CTR CA
2019-02-20 442-269-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C JOSHUATREE CA
2019-02-20 442-269-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C JOSHUATREE CA
2019-02-20 442-276-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C PINYON CA
2019-02-20 442-276-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C PINYON CA
2019-02-19 442-263-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C PAUMA VLY CA
2019-02-19 442-263-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C PAUMA VLY CA
2019-02-19 442-334-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALMDESERT CA
2019-02-19 442-465-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C OCOTILLO CA
2019-02-19 442-465-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C OCOTILLO CA
2019-02-19 442-515-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SAN MARCOS CA
2019-02-06 442-219-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C VICTORVL CA
2019-02-06 442-219-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C VICTORVL CA
2019-02-06 442-221-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C BENTON CA
2019-02-06 442-221-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C BENTON CA
2019-02-06 442-261-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SHOSHONE CA
2019-02-06 442-261-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SHOSHONE CA
2019-02-06 442-327-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C VICTORVL CA
2019-02-06 442-327-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C VICTORVL CA
2019-02-06 442-363-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C VTVL ADLN CA
2019-02-06 442-363-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C VTVL ADLN CA
2019-02-06 442-382-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2019-02-06 442-382-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2019-02-06 442-382-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2019-02-06 442-382-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2019-02-05 442-203-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C BRIDGEPORT CA
2019-02-05 442-203-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C BRIDGEPORT CA
2019-02-01 442-201-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LEE VINING CA
2019-02-01 442-201-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LEE VINING CA
2019-02-01 442-239-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C DEATH VLY CA
2019-02-01 442-239-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C DEATH VLY CA
2019-02-01 442-298-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C TRONA CA
2019-02-01 442-298-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C TRONA CA
2019-01-31 442-218-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C LKISABELLA CA
2019-01-31 442-218-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LKISABELLA CA
2019-01-31 442-220-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C MT PASS CA
2019-01-31 442-220-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C MT PASS CA
2019-01-31 442-259-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SUMMIT VLY CA
2019-01-31 442-259-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SUMMIT VLY CA
2019-01-31 442-272-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C INYOKERN CA
2019-01-31 442-272-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C INYOKERN CA
2019-01-31 442-292-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C VTVL APVY CA
2019-01-31 442-292-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C VTVL APVY CA
2019-01-31 442-302-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C LUCERNEVLY CA
2019-01-31 442-302-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LUCERNEVLY CA
2019-01-31 442-326-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C INDEPNDNCE CA
2019-01-31 442-326-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C INDEPNDNCE CA
2019-01-29 442-266-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD OCSD CA
2019-01-23 442-287-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OCSD CRLS CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.