NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 305
ONVOY, 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
2006-01-17 305-407-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 KEYS FL
2006-01-17 305-407-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 KEYS FL
2006-01-16 305-428-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MIAMI FL
2006-01-16 305-924-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 KEYS FL
2006-01-16 305-924-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 KEYS FL
2006-01-16 305-924-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 KEYS FL
2005-12-21 305-420-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MIAMI FL
2005-12-15 305-921-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MIAMI FL
2005-12-15 305-921-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MIAMI FL
2005-12-09 305-200-9XXX 9000–9999Assigned METROPCS, INC. 5562 MIAMI FL
2005-12-09 305-351-6XXX 6000–6999Assigned METROPCS, INC. 5562 MIAMI FL
2005-12-09 305-728-9XXX 9000–9999Assigned METROPCS, INC. 5562 MIAMI FL
2005-12-08 305-619-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 KEYS FL
2005-11-09 305-407-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 KEYS FL
2005-11-09 305-407-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 KEYS FL
2005-11-09 305-407-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 KEYS FL
2005-10-14 305-407-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J KEYS FL
2005-10-14 305-407-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J KEYS FL
2005-10-07 305-619-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 KEYS FL
2005-10-07 305-619-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 KEYS FL
2005-10-07 305-619-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 KEYS FL
2005-10-07 305-619-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 KEYS FL
2005-09-08 305-454-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NORTH DADE FL
2005-08-29 305-420-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MIAMI FL
2005-08-29 305-420-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MIAMI FL
2005-07-12 305-907-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NORTH DADE FL
2005-06-27 305-230-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 HOMESTEAD FL
2005-06-27 305-230-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 HOMESTEAD FL
2005-06-27 305-230-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 HOMESTEAD FL
2005-06-27 305-508-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 HOMESTEAD FL
2005-06-24 305-704-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 MIAMI FL
2005-06-24 305-735-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 KEYS FL
2005-06-24 305-830-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 NORTH DADE FL
2005-06-24 305-830-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 NORTH DADE FL
2005-06-24 305-909-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 PERRINE FL
2005-06-17 305-384-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J NORTH DADE FL
2005-06-17 305-405-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J NORTH DADE FL
2005-06-17 305-405-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NORTH DADE FL
2005-06-17 305-749-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NORTH DADE FL
2005-06-17 305-760-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J NORTH DADE FL
2005-06-17 305-760-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NORTH DADE FL
2005-05-26 305-384-5XXX 5000–5999Assigned METROPCS, INC. 5562 NORTH DADE FL
2005-05-26 305-909-5XXX 5000–5999Assigned METROPCS, INC. 5562 PERRINE FL
2005-05-03 305-508-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOMESTEAD FL
2005-05-03 305-508-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOMESTEAD FL
2005-04-25 305-370-8XXX 8000–8999Assigned METROPCS, INC. 5562 NORTH DADE FL
2005-04-21 305-767-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 KEYS FL
2005-04-21 305-767-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 KEYS FL
2005-04-21 305-767-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 KEYS FL
2005-04-20 305-390-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 KEYS 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.