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
2006-05-12 813-826-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2006-05-12 813-826-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2006-05-12 813-826-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2006-05-12 813-826-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2006-05-12 813-826-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2006-05-12 813-826-9XXX 9000–9999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2006-05-01 813-473-4XXX 4000–4999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 PLANT CITY FL
2006-04-27 813-658-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPASTH FL
2006-04-13 813-838-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 ZEPHYRHILS FL
2006-04-12 813-352-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2006-04-12 813-352-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2006-04-11 813-367-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J TAMPACEN FL
2006-04-11 813-367-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J TAMPACEN FL
2006-04-11 813-412-0XXX 0000–0999Assigned METROPCS, INC. 5562 TAMPA FL
2006-04-11 813-412-9XXX 9000–9999Assigned METROPCS, INC. 5562 TAMPA FL
2006-04-10 813-574-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J TAMPACEN FL
2006-04-06 813-463-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J TAMPACEN FL
2006-03-31 813-365-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PLANT CITY FL
2006-03-30 813-983-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2006-03-24 813-464-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPA FL
2006-03-24 813-464-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPA FL
2006-03-23 813-531-0XXX 0000–0999Assigned METROPCS, INC. 5562 TAMPA FL
2006-03-14 813-868-9XXX 9000–9999Assigned FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TAMPACEN FL
2006-03-01 813-435-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPANTH FL
2006-03-01 813-435-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPANTH FL
2006-03-01 813-448-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPAWST FL
2006-03-01 813-735-1XXX 1000–1999Assigned METROPCS, INC. 5562 TAMPA FL
2006-03-01 813-735-2XXX 2000–2999Assigned METROPCS, INC. 5562 TAMPA FL
2006-03-01 813-735-3XXX 3000–3999Assigned METROPCS, INC. 5562 TAMPA FL
2006-03-01 813-735-4XXX 4000–4999Assigned METROPCS, INC. 5562 TAMPA FL
2006-03-01 813-735-5XXX 5000–5999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-27 813-699-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPAEST FL
2006-02-23 813-506-0XXX 0000–0999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-23 813-506-1XXX 1000–1999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-23 813-506-2XXX 2000–2999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-23 813-506-3XXX 3000–3999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-23 813-506-4XXX 4000–4999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-13 813-838-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 ZEPHYRHILS FL
2006-02-10 813-523-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2006-02-08 813-377-9XXX 9000–9999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2006-02-08 813-447-2XXX 2000–2999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-08 813-447-3XXX 3000–3999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-08 813-447-4XXX 4000–4999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-08 813-447-5XXX 5000–5999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-08 813-447-6XXX 6000–6999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-08 813-447-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-08 813-447-8XXX 8000–8999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-08 813-458-5XXX 5000–5999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-08 813-458-6XXX 6000–6999Assigned METROPCS, INC. 5562 TAMPA FL
2006-02-08 813-458-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAMPA 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.