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
2011-11-09 813-304-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-11-09 813-304-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-11-09 813-304-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-11-08 813-701-4XXX 4000–4999Assigned METROPCS, INC. 5562 ZEPHYRHILS FL
2011-11-03 813-999-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-10-27 813-252-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2011-10-17 813-703-4XXX 4000–4999Assigned METROPCS, INC. 5562 PLANT CITY FL
2011-10-14 813-324-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPAEST FL
2011-10-14 813-999-2XXX 2000–2999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2011-10-14 813-999-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2011-10-12 813-388-2XXX 2000–2999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPANTH FL
2011-10-12 813-999-4XXX 4000–4999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2011-10-07 813-280-7XXX 7000–7999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2011-10-07 813-280-8XXX 8000–8999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2011-10-05 813-701-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ZEPHYRHILS FL
2011-09-23 813-280-2XXX 2000–2999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2011-09-20 813-280-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2011-09-15 813-324-0XXX 0000–0999Assigned METROPCS, INC. 5562 TAMPAEST FL
2011-09-14 813-280-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2011-08-26 813-708-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E PLANT CITY FL
2011-08-25 813-280-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2011-08-23 813-475-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPAWST FL
2011-08-17 813-898-0XXX 0000–0999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2011-08-17 813-898-2XXX 2000–2999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2011-08-15 813-279-3XXX 3000–3999Assigned METROPCS, INC. 5562 TAMPANTH FL
2011-08-15 813-279-4XXX 4000–4999Assigned METROPCS, INC. 5562 TAMPANTH FL
2011-08-12 813-898-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J TAMPACEN FL
2011-07-20 813-529-0XXX 0000–0999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2011-07-20 813-529-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2011-07-20 813-529-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2011-07-20 813-529-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2011-07-20 813-529-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2011-07-20 813-529-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2011-07-20 813-529-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2011-07-20 813-529-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2011-07-20 813-529-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2011-07-20 813-529-9XXX 9000–9999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2011-07-11 813-438-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPAEST FL
2011-06-23 813-297-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-06-23 813-297-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-06-23 813-297-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-06-23 813-297-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-06-23 813-297-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-06-23 813-297-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-06-23 813-297-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-06-23 813-297-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-06-23 813-297-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-06-23 813-297-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-06-22 813-999-9XXX 9000–9999Assigned TERRA NOVA TELECOM, INC. - FL 382G TAMPACEN FL
2011-06-21 813-525-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN 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.