NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 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 14
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
2004-12-15 805-426-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J SIMIVALLEY CA
2004-12-13 805-322-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAMARILLO CA
2004-12-13 805-409-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 THOUSAOAKS CA
2004-12-10 805-222-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C MOORPARK CA
2004-12-10 805-223-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C VNTRA CNTL CA
2004-12-08 805-212-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA EAST CA
2004-12-08 805-223-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D VNTRA CNTL CA
2004-11-24 805-535-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA EAST CA
2004-11-24 805-651-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D VNTRA CNTL CA
2004-11-12 805-830-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D VNTRA CNTL CA
2004-10-27 805-228-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J OXNARD CA
2004-10-18 805-205-8XXX 8000–8999Assigned IP HORIZON LLC 515J OXNARD CA
2004-10-18 805-205-9XXX 9000–9999Assigned IP HORIZON LLC 515J OXNARD CA
2004-10-18 805-244-2XXX 2000–2999Assigned IP HORIZON LLC 515J CONEJO CA
2004-10-18 805-244-3XXX 3000–3999Assigned IP HORIZON LLC 515J CONEJO CA
2004-10-18 805-246-2XXX 2000–2999Assigned IP HORIZON LLC 515J POINT MUGU CA
2004-10-18 805-246-3XXX 3000–3999Assigned IP HORIZON LLC 515J POINT MUGU CA
2004-10-18 805-273-2XXX 2000–2999Assigned IP HORIZON LLC 515J NEWBURYPRK CA
2004-10-18 805-273-3XXX 3000–3999Assigned IP HORIZON LLC 515J NEWBURYPRK CA
2004-10-18 805-409-1XXX 1000–1999Assigned IP HORIZON LLC 515J THOUSAOAKS CA
2004-10-18 805-409-2XXX 2000–2999Assigned IP HORIZON LLC 515J THOUSAOAKS CA
2004-10-18 805-920-2XXX 2000–2999Assigned IP HORIZON LLC 515J SOMIS CA
2004-10-18 805-920-3XXX 3000–3999Assigned IP HORIZON LLC 515J SOMIS CA
2004-10-18 805-973-2XXX 2000–2999Assigned IP HORIZON LLC 515J EL RIO CA
2004-10-18 805-973-3XXX 3000–3999Assigned IP HORIZON LLC 515J EL RIO CA
2004-10-14 805-421-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D SANTAPAULA CA
2004-10-14 805-421-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D SANTAPAULA CA
2004-10-12 805-823-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SIMIVALLEY CA
2004-10-11 805-267-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 THOUSAOAKS CA
2004-09-23 805-410-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J NEWBURYPRK CA
2004-09-23 805-798-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OJAI CA
2004-09-21 805-944-2XXX 2000–2999Assigned METROPCS, INC. 5562 LOMPOC CA
2004-09-16 805-228-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 OXNARD CA
2004-09-15 805-286-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PASOROBLES CA
2004-09-14 805-200-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2004-09-14 805-200-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2004-09-14 805-416-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SIMIVALLEY CA
2004-09-14 805-416-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SIMIVALLEY CA
2004-09-13 805-223-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA CNTL CA
2004-09-13 805-223-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA CNTL CA
2004-09-13 805-286-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PASOROBLES CA
2004-09-13 805-286-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PASOROBLES CA
2004-09-13 805-315-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LOMPOC CA
2004-09-13 805-345-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2004-09-13 805-345-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2004-09-08 805-223-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D VNTRA CNTL CA
2004-09-08 805-245-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA YNEZ CA
2004-09-08 805-264-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANTAMARIA CA
2004-09-07 805-272-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OJAI CA
2004-09-07 805-477-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VNTRA EAST 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.