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 321
ONVOY, LLC - FL 5
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
2005-10-28 321-368-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2005-09-26 321-392-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 COCOABEACH FL
2005-09-26 321-392-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 COCOABEACH FL
2005-09-21 321-289-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TITUSVILLE FL
2005-09-19 321-368-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2005-09-16 321-289-4XXX 4000–4999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TITUSVILLE FL
2005-08-31 321-558-1XXX 1000–1999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 ORLANDO FL
2005-08-22 321-360-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TITUSVILLE FL
2005-08-18 321-402-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-08-18 321-402-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-08-18 321-402-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-08-18 321-402-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-08-18 321-402-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-08-18 321-402-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-08-18 321-402-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-08-18 321-402-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-08-17 321-766-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ST CLOUD FL
2005-08-16 321-775-4XXX 4000–4999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 EAU GALLIE FL
2005-08-10 321-505-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-08-10 321-505-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-08-10 321-505-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-08-10 321-505-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-08-10 321-505-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-08-10 321-506-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-08-10 321-506-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-08-10 321-506-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-08-10 321-506-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-08-10 321-506-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-08-08 321-558-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 ORLANDO FL
2005-08-08 321-558-5XXX 5000–5999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 ORLANDO FL
2005-08-08 321-558-8XXX 8000–8999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 ORLANDO FL
2005-08-02 321-373-6XXX 6000–6999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 MELBOURNE FL
2005-07-26 321-525-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2005-07-26 321-525-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2005-07-26 321-558-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 ORLANDO FL
2005-07-14 321-939-3XXX 3000–3999Assigned SMART CITY TELECOM LLC DBA SMART CITY TELECOM 0330 CELEBRATN FL
2005-07-11 321-482-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-07-11 321-482-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-07-11 321-482-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-07-11 321-482-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COCOA FL
2005-07-11 321-704-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 COCOA FL
2005-07-06 321-442-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-07-06 321-442-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-07-06 321-442-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KISSIMMEE FL
2005-06-29 321-426-9XXX 9000–9999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 EAU GALLIE FL
2005-06-28 321-482-5XXX 5000–5999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 COCOA FL
2005-06-24 321-987-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 COCOA FL
2005-06-23 321-574-1XXX 1000–1999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 MELBOURNE FL
2005-06-23 321-574-2XXX 2000–2999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 MELBOURNE FL
2005-06-22 321-283-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 SANFORD 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.