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
2004-01-23 813-241-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2004-01-23 813-313-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2004-01-13 813-957-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2004-01-13 813-957-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2004-01-13 813-957-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2004-01-06 813-600-4XXX 4000–4999Assigned LINGO TELECOM, LLC 3840 TAMPACEN FL
2003-11-12 813-323-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-11-12 813-323-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-11-12 813-323-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-11-10 813-649-8XXX 8000–8999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPASTH FL
2003-11-10 813-830-9XXX 9000–9999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2003-10-17 813-277-4XXX 4000–4999Assigned METROPCS, INC. 5562 TAMPACEN FL
2003-10-17 813-277-6XXX 6000–6999Assigned METROPCS, INC. 5562 TAMPACEN FL
2003-10-17 813-433-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPAWST FL
2003-10-17 813-433-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPAWST FL
2003-10-16 813-235-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPANTH FL
2003-10-16 813-235-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPANTH FL
2003-10-16 813-235-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPANTH FL
2003-10-16 813-434-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPASTH FL
2003-10-16 813-434-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPASTH FL
2003-10-16 813-436-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPAEST FL
2003-10-16 813-436-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPAEST FL
2003-10-13 813-951-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-10-13 813-951-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-10-13 813-957-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-10-09 813-393-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2003-09-22 813-239-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAMPACEN FL
2003-09-22 813-343-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J TAMPAWST FL
2003-09-22 813-951-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-09-22 813-951-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-09-17 813-830-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2003-09-17 813-830-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2003-09-17 813-830-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2003-09-15 813-241-5XXX 5000–5999Assigned METROPCS, INC. 5562 TAMPACEN FL
2003-09-15 813-241-7XXX 7000–7999Assigned METROPCS, INC. 5562 TAMPACEN FL
2003-08-22 813-951-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-08-22 813-951-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-08-08 813-426-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-08-08 813-426-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-08-08 813-426-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-07-30 813-541-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-07-30 813-951-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-07-30 813-951-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-07-30 813-951-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-07-17 813-393-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-07-17 813-393-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-07-17 813-393-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-07-17 813-393-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-06-05 813-541-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-05-07 813-716-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PLANT CITY 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.