NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 562
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
2014-09-10 562-735-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2014-09-10 562-742-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2014-09-10 562-794-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2014-09-09 562-417-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 DOWNEY CA
2014-09-09 562-417-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 DOWNEY CA
2014-08-29 562-332-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHITTIER CA
2014-08-29 562-548-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2014-08-29 562-640-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LA HABRA CA
2014-08-29 562-940-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DOWNEY CA
2014-08-28 562-240-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2014-08-28 562-240-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2014-08-28 562-240-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2014-08-28 562-446-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2014-08-26 562-842-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PICORIVERA CA
2014-08-26 562-842-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C PICORIVERA CA
2014-08-25 562-273-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C WHITTIER CA
2014-08-25 562-371-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C LA HABRA CA
2014-08-25 562-376-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C NORWALK CA
2014-08-25 562-444-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LAKEWOOD CA
2014-08-22 562-280-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2014-08-22 562-284-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2014-08-21 562-372-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C DOWNEY CA
2014-08-15 562-674-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DOWNEY CA
2014-08-14 562-284-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2014-08-14 562-296-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D ALAMITOS CA
2014-08-12 562-986-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ALAMITOS CA
2014-08-11 562-548-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2014-08-11 562-548-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2014-08-11 562-548-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2014-08-11 562-548-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2014-08-07 562-553-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LA HABRA CA
2014-08-06 562-451-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LA HABRA CA
2014-08-06 562-451-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LA HABRA CA
2014-08-06 562-704-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LONG BEACH CA
2014-07-29 562-273-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHITTIER CA
2014-07-23 562-521-7XXX 7000–7999Assigned HD CARRIER LLC 321J NORWALK CA
2014-07-03 562-473-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2014-07-03 562-704-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2014-07-03 562-964-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DOWNEY CA
2014-06-23 562-521-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2014-06-23 562-521-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2014-06-20 562-340-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ALAMITOS CA
2014-06-19 562-584-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2014-06-19 562-584-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2014-06-19 562-584-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORWALK CA
2014-06-18 562-248-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2014-06-18 562-248-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALAMITOS CA
2014-05-23 562-284-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ALAMITOS CA
2014-05-23 562-367-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D DOWNEY CA
2014-05-15 562-202-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NORWALK CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.