NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 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 561
BANDWIDTH.COM CLEC, 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
2005-06-08 561-939-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2005-06-03 561-348-0XXX 0000–0999Assigned METROPCS, INC. 5562 JUPITER FL
2005-06-03 561-427-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J JUPITER FL
2005-05-26 561-506-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2005-05-19 561-340-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2005-05-19 561-886-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2005-05-17 561-983-1XXX 1000–1999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2005-05-17 561-983-2XXX 2000–2999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2005-05-17 561-983-3XXX 3000–3999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2005-05-17 561-983-5XXX 5000–5999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2005-05-17 561-983-7XXX 7000–7999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2005-05-10 561-400-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2005-05-10 561-847-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2005-05-10 561-847-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2005-05-03 561-273-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 WPALMBEACH FL
2005-04-20 561-337-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2005-04-20 561-337-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2005-04-20 561-337-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2005-04-20 561-337-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2005-04-20 561-337-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2005-04-20 561-337-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2005-04-20 561-537-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2005-04-20 561-584-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2005-04-20 561-584-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2005-04-19 561-210-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2005-04-19 561-210-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2005-04-19 561-210-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2005-04-19 561-237-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2005-04-19 561-237-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2005-04-19 561-245-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2005-04-19 561-245-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2005-04-19 561-300-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2005-04-19 561-404-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DELRAY BCH FL
2005-04-19 561-404-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DELRAY BCH FL
2005-04-15 561-853-4XXX 4000–4999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2005-04-15 561-853-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2005-04-15 561-853-6XXX 6000–6999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2005-04-15 561-853-7XXX 7000–7999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2005-04-15 561-853-8XXX 8000–8999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2005-04-12 561-400-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2005-04-12 561-400-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2005-04-12 561-537-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2005-03-31 561-340-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2005-03-29 561-206-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2005-03-29 561-273-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2005-03-23 561-520-0XXX 0000–0999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 BOCA RATON FL
2005-03-23 561-520-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 BOCA RATON FL
2005-03-23 561-520-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 BOCA RATON FL
2005-03-23 561-520-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 BOCA RATON FL
2005-03-23 561-520-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 BOCA RATON 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.