NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 813
TELIMIZE, LLC 4
TELEPORT COMMUNICATIONS AMERICA, LLC - FL 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
2019-02-21 813-553-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2019-02-21 813-553-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2019-02-21 813-553-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2019-02-21 813-553-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2019-02-21 813-946-3XXX 3000–3999Assigned CORETEL FLORIDA, INC. - FL 481F PLANT CITY FL
2019-01-30 813-524-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2019-01-30 813-537-2XXX 2000–2999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPAWST FL
2019-01-30 813-652-4XXX 4000–4999Assigned METROPCS, INC. 5562 PLANT CITY FL
2019-01-14 813-524-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2019-01-14 813-524-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2019-01-14 813-524-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2019-01-14 813-524-3XXX 3000–3999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2019-01-14 813-524-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2019-01-09 813-537-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C TAMPAWST FL
2019-01-09 813-537-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C TAMPAWST FL
2019-01-04 813-665-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E ZEPHYRHILS FL
2019-01-04 813-665-5XXX 5000–5999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2018-12-21 813-553-0XXX 0000–0999Assigned METROPCS, INC. 5562 TAMPANTH FL
2018-12-18 813-688-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAEST FL
2018-12-18 813-688-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAEST FL
2018-12-18 813-688-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAEST FL
2018-12-18 813-688-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAEST FL
2018-12-18 813-688-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAEST FL
2018-12-18 813-688-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAEST FL
2018-12-17 813-553-9XXX 9000–9999Assigned METROPCS, INC. 5562 TAMPANTH FL
2018-12-13 813-359-4XXX 4000–4999Assigned METROPCS, INC. 5562 PLANT CITY FL
2018-12-13 813-696-5XXX 5000–5999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2018-12-10 813-599-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2018-12-10 813-599-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2018-12-10 813-599-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2018-12-10 813-683-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2018-12-10 813-733-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPANTH FL
2018-12-10 813-733-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPANTH FL
2018-11-29 813-665-1XXX 1000–1999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E ZEPHYRHILS FL
2018-11-29 813-836-7XXX 7000–7999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E PLANT CITY FL
2018-11-28 813-599-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2018-11-28 813-599-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2018-11-28 813-599-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2018-11-28 813-599-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2018-11-27 813-550-2XXX 2000–2999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPACEN FL
2018-11-26 813-412-5XXX 5000–5999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPA FL
2018-11-20 813-462-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2018-11-14 813-521-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2018-11-14 813-521-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2018-11-14 813-550-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2018-11-14 813-550-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2018-11-09 813-683-9XXX 9000–9999Assigned HD CARRIER LLC 321J TAMPACEN FL
2018-11-05 813-566-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C TAMPASTH FL
2018-11-05 813-566-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C TAMPASTH FL
2018-11-05 813-688-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C TAMPAEST FL

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.