NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 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 760
ONVOY, LLC - CA 3
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
NEW CINGULAR WIRELESS PCS, LLC 1
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
2005-07-05 760-538-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SALTON CA
2005-07-05 760-648-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 JUNE LAKE CA
2005-07-05 760-660-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DSERTHTSPG CA
2005-07-05 760-786-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DEATH VLY CA
2005-07-05 760-973-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 FORT IRWIN CA
2005-07-05 760-989-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 INDIO CA
2005-06-30 760-460-7XXX 7000–7999Assigned METROPCS, INC. 5562 EL CENTRO CA
2005-06-28 760-203-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRIDGEPORT CA
2005-06-28 760-278-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BLYTHE CA
2005-06-28 760-284-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CALIFORNCY CA
2005-06-28 760-306-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BORON CA
2005-06-28 760-364-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HOMESTDVLY CA
2005-06-28 760-657-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANDY VLLY CA
2005-06-28 760-784-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BISHOP CA
2005-06-28 760-820-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 YUCCA VLY CA
2005-06-28 760-849-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BAKER CA
2005-06-28 760-889-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OCSD CRLS CA
2005-06-28 760-933-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BENTON CA
2005-06-28 760-938-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BIG PINE CA
2005-06-28 760-957-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BARSTOW CA
2005-06-28 760-961-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VTVL APVY CA
2005-06-23 760-259-5XXX 5000–5999Assigned METROPCS, INC. 5562 EL CENTRO CA
2005-06-23 760-529-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OCSD OCSD CA
2005-06-23 760-529-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OCSD OCSD CA
2005-06-22 760-265-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 VICTORVL CA
2005-06-22 760-712-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 OCSD OCSD CA
2005-06-20 760-529-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 OCSD OCSD CA
2005-06-20 760-664-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 EARP LSLK CA
2005-06-20 760-935-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CROWLEY LK CA
2005-06-19 760-686-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VICTORVL CA
2005-06-19 760-780-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VICTORVL CA
2005-06-19 760-780-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VICTORVL CA
2005-06-17 760-858-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HAVASULAKE CA
2005-06-16 760-305-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA
2005-06-13 760-502-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CALIPATRIA CA
2005-06-03 760-464-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2005-06-03 760-464-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2005-06-03 760-499-3XXX 3000–3999Assigned FRONTIER CALIFORNIA INC. 4420 RIDGECREST CA
2005-06-03 760-904-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALM SPG CA
2005-06-02 760-504-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ESCONDIDO CA
2005-06-02 760-504-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ESCONDIDO CA
2005-06-01 760-208-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VISTA CA
2005-06-01 760-536-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VISTA CA
2005-06-01 760-536-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VISTA CA
2005-06-01 760-536-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VISTA CA
2005-06-01 760-536-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VISTA CA
2005-05-31 760-679-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EL CENTRO CA
2005-05-31 760-992-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 PALM SPG CA
2005-05-27 760-368-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C TWNTYNPLMS CA
2005-05-27 760-877-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ESCONDIDO 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.