NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 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 805
ONVOY, LLC - CA 11
TELNYX LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 1
BANDWIDTH.COM CLEC, LLC - CA 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
2012-01-12 805-366-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2011-12-29 805-325-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA YNEZ CA
2011-12-27 805-921-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D SANTAPAULA CA
2011-12-15 805-330-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 OXNARD CA
2011-12-13 805-332-7XXX 7000–7999Assigned METROPCS, INC. 5562 SANTAMARIA CA
2011-12-07 805-335-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANBARBARA CA
2011-11-22 805-330-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C OXNARD CA
2011-11-21 805-296-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PASOROBLES CA
2011-11-21 805-308-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SANBARBARA CA
2011-11-16 805-465-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAMARILLO CA
2011-11-11 805-395-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C CAMBRIA CA
2011-11-10 805-510-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CARRISA PL CA
2011-11-10 805-591-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C PASOROBLES CA
2011-11-10 805-776-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MORRO BAY CA
2011-11-10 805-931-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C NIPOMO CA
2011-11-10 805-936-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C PISMOBEACH CA
2011-11-10 805-995-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C CAYUCOS CA
2011-11-09 805-538-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATASCADERO CA
2011-11-09 805-994-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ARROYOGRND CA
2011-11-02 805-460-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ATASCADERO CA
2011-11-01 805-764-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CAMARILLO CA
2011-11-01 805-800-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LOMPOC CA
2011-11-01 805-842-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SIMIVALLEY CA
2011-10-05 805-728-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 THOUSAOAKS CA
2011-09-30 805-324-2XXX 2000–2999Assigned METROPCS, INC. 5562 SANBARBARA CA
2011-09-30 805-324-3XXX 3000–3999Assigned METROPCS, INC. 5562 SANBARBARA CA
2011-09-29 805-418-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 THOUSAOAKS CA
2011-09-28 805-200-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OXNARD CA
2011-09-28 805-330-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2011-09-19 805-324-1XXX 1000–1999Assigned METROPCS, INC. 5562 SANBARBARA CA
2011-09-14 805-242-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNLUSOBSPO CA
2011-09-12 805-574-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ARROYOGRND CA
2011-09-12 805-693-3XXX 3000–3999Assigned NORCAST COMMUNICATIONS CORPORATION - CA 9807 SANTA YNEZ CA
2011-09-08 805-328-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SIMIVALLEY CA
2011-09-07 805-548-1XXX 1000–1999Assigned NORCAST COMMUNICATIONS CORPORATION - CA 9807 SNLUSOBSPO CA
2011-09-01 805-328-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SIMIVALLEY CA
2011-09-01 805-332-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANTAMARIA CA
2011-09-01 805-430-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L LOMPOC CA
2011-08-30 805-399-1XXX 1000–1999Assigned WIDE VOICE, LLC - CA 252F SAN MIGUEL CA
2011-08-22 805-250-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNLUSOBSPO CA
2011-08-19 805-330-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J OXNARD CA
2011-08-15 805-332-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SANTAMARIA CA
2011-08-15 805-332-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SANTAMARIA CA
2011-08-09 805-622-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CONEJO CA
2011-08-05 805-296-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PASOROBLES CA
2011-08-05 805-430-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LOMPOC CA
2011-08-01 805-738-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CAMARILLO CA
2011-07-22 805-270-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ARROYOGRND CA
2011-07-20 805-669-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E OJAI CA
2011-07-19 805-203-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CAMBRIA 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.