NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

24 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 747
ONVOY, LLC - CA 12
EXIANT COMMUNICATIONS LLC 5
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
NEW CINGULAR WIRELESS PCS, LLC 2
BANDWIDTH.COM CLEC, LLC - 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
2018-12-17 747-755-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D NORTHRIDGE CA
2018-12-03 747-333-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2018-12-03 747-333-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2018-11-30 747-268-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PSDN LACN CA
2018-11-26 747-212-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F AGOURA CA
2018-11-21 747-245-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BRBN SNVY CA
2018-11-21 747-269-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNFN SPLV CA
2018-11-21 747-281-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNFN PACM CA
2018-11-20 747-285-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SUNLD TJNG CA
2018-10-19 747-291-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2018-10-17 747-260-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNFN SNFN CA
2018-10-11 747-270-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D GLENDALE CA
2018-10-11 747-389-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D NO HOLLYWD CA
2018-10-04 747-284-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-04 747-284-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-04 747-284-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-04 747-284-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-04 747-284-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-04 747-284-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-04 747-284-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-04 747-284-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-04 747-301-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-04 747-301-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-04 747-301-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-02 747-222-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-02 747-334-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2018-10-01 747-252-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNFN GRHL CA
2018-09-25 747-223-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BRBN SNVY CA
2018-09-25 747-262-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F VAN NUYS CA
2018-09-25 747-268-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PSDN LACN CA
2018-09-25 747-270-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F GLENDALE CA
2018-09-25 747-344-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BRBN BRBN CA
2018-09-25 747-494-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CANOGAPARK CA
2018-09-18 747-274-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNFN PACM CA
2018-09-18 747-333-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BRBN BRBN CA
2018-09-14 747-244-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2018-09-14 747-244-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2018-09-14 747-389-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2018-09-14 747-389-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2018-09-10 747-609-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GLENDALE CA
2018-08-30 747-344-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2018-08-30 747-344-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2018-08-21 747-270-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 GLENDALE CA
2018-08-02 747-207-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SUNLD TJNG CA
2018-08-02 747-244-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NORTHRIDGE CA
2018-08-02 747-389-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NO HOLLYWD CA
2018-08-01 747-228-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GLENDALE CA
2018-08-01 747-228-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GLENDALE CA
2018-07-18 747-389-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2018-07-09 747-226-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CANOGAPARK 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.