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
2016-06-17 813-947-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2016-06-17 813-947-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2016-06-17 813-947-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2016-06-16 813-860-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-06-16 813-860-6XXX 6000–6999Assigned METROPCS, INC. 5562 TAMPACEN FL
2016-06-16 813-860-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-06-15 813-619-4XXX 4000–4999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPACEN FL
2016-06-10 813-336-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C TAMPAWST FL
2016-06-10 813-940-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-06-10 813-970-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-06-06 813-853-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D TAMPACEN FL
2016-06-02 813-575-9XXX 9000–9999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPANTH FL
2016-05-25 813-848-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 PLANT CITY FL
2016-05-25 813-970-0XXX 0000–0999Assigned INTRADO COMMUNICATIONS, LLC 813C TAMPACEN FL
2016-05-19 813-533-8XXX 8000–8999Assigned WOW! INTERNET, CABLE AND PHONE 961J TAMPACEN FL
2016-05-19 813-551-4XXX 4000–4999Assigned HD CARRIER LLC 321J TAMPAWST FL
2016-05-19 813-551-5XXX 5000–5999Assigned HD CARRIER LLC 321J TAMPAWST FL
2016-05-19 813-551-6XXX 6000–6999Assigned HD CARRIER LLC 321J TAMPAWST FL
2016-05-17 813-848-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PLANT CITY FL
2016-05-17 813-848-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PLANT CITY FL
2016-05-10 813-305-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PLANT CITY FL
2016-05-03 813-291-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-05-03 813-291-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-05-03 813-291-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-05-03 813-575-8XXX 8000–8999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPANTH FL
2016-05-03 813-773-7XXX 7000–7999Assigned BHN IP ENABLED SERVICES, LLC 045L TAMPASTH FL
2016-05-02 813-278-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPAEST FL
2016-05-02 813-278-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPAEST FL
2016-04-28 813-970-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-04-28 813-970-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-04-22 813-539-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2016-04-22 813-539-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2016-04-22 813-539-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2016-04-22 813-539-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2016-04-22 813-539-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TAMPACEN FL
2016-04-13 813-947-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2016-04-13 813-947-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2016-04-13 813-947-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2016-04-13 813-947-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2016-04-11 813-947-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TAMPACEN FL
2016-03-24 813-670-6XXX 6000–6999Assigned ONVOY, LLC - FL 937C ZEPHYRHILS FL
2016-03-24 813-993-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C TAMPAEST FL
2016-03-16 813-750-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C PLANT CITY FL
2016-03-14 813-940-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2016-03-14 813-940-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C TAMPACEN FL
2016-03-08 813-607-6XXX 6000–6999Assigned ONVOY, LLC - FL 937C TAMPANTH FL
2016-03-07 813-724-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-03-07 813-724-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-03-07 813-940-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2016-02-25 813-473-1XXX 1000–1999Assigned IP HORIZON LLC 515J 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.