NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2003-04-15 813-541-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-04-15 813-541-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-04-15 813-541-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-04-15 813-541-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-04-15 813-541-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-04-10 813-323-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-04-10 813-323-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-04-10 813-323-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-04-10 813-323-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2003-03-17 813-377-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J ZEPHYRHILS FL
2003-03-13 813-239-4XXX 4000–4999Assigned METROPCS, INC. 5562 TAMPACEN FL
2003-02-25 813-393-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2003-02-25 813-393-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2003-02-25 813-393-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2003-02-14 813-541-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2003-01-17 813-235-1XXX 1000–1999Assigned TERRA NOVA TELECOM, INC. - FL 382G TAMPANTH FL
2003-01-17 813-305-8XXX 8000–8999Assigned TERRA NOVA TELECOM, INC. - FL 382G PLANT CITY FL
2003-01-17 813-322-9XXX 9000–9999Assigned TERRA NOVA TELECOM, INC. - FL 382G ZEPHYRHILS FL
2003-01-17 813-356-0XXX 0000–0999Assigned TERRA NOVA TELECOM, INC. - FL 382G TAMPACEN FL
2003-01-17 813-413-9XXX 9000–9999Assigned TERRA NOVA TELECOM, INC. - FL 382G TAMPAEST FL
2003-01-17 813-433-9XXX 9000–9999Assigned TERRA NOVA TELECOM, INC. - FL 382G TAMPAWST FL
2003-01-17 813-434-9XXX 9000–9999Assigned TERRA NOVA TELECOM, INC. - FL 382G TAMPASTH FL
2003-01-06 813-333-4XXX 4000–4999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPANTH FL
2002-12-26 813-318-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2002-12-26 813-318-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2002-12-26 813-363-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2002-12-26 813-363-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2002-12-26 813-363-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2002-11-25 813-207-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2002-11-04 813-388-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPANTH FL
2002-11-04 813-388-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPANTH FL
2002-10-31 813-210-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2002-10-31 813-365-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 PLANT CITY FL
2002-10-31 813-613-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2002-10-31 813-613-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPA FL
2002-10-02 813-571-6XXX 6000–6999Assigned FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TAMPAEST FL
2002-09-26 813-366-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAWST FL
2002-09-26 813-366-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAWST FL
2002-09-26 813-366-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAWST FL
2002-09-26 813-366-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAWST FL
2002-09-26 813-366-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAWST FL
2002-09-26 813-366-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAWST FL
2002-09-26 813-366-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAWST FL
2002-09-26 813-366-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAWST FL
2002-09-26 813-366-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAWST FL
2002-09-26 813-366-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPAWST FL
2002-08-14 813-227-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2002-07-08 813-235-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPANTH FL
2002-07-08 813-377-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ZEPHYRHILS FL
2002-07-08 813-413-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPAEST FL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.