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
2006-08-07 561-531-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2006-08-07 561-537-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2006-08-07 561-922-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2006-08-07 561-948-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2006-07-25 561-354-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JUPITER FL
2006-07-18 561-961-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2006-07-17 561-578-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2006-07-12 561-623-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 WPALMBEACH FL
2006-07-03 561-245-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2006-07-03 561-961-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2006-06-28 561-506-3XXX 3000–3999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2006-06-28 561-598-0XXX 0000–0999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2006-06-28 561-598-1XXX 1000–1999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2006-06-28 561-598-2XXX 2000–2999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2006-06-28 561-598-3XXX 3000–3999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2006-06-28 561-598-4XXX 4000–4999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2006-06-27 561-634-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2006-06-27 561-767-1XXX 1000–1999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2006-06-27 561-767-2XXX 2000–2999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2006-06-27 561-880-1XXX 1000–1999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2006-06-26 561-401-3XXX 3000–3999Assigned METROPCS, INC. 5562 JUPITER FL
2006-06-26 561-401-5XXX 5000–5999Assigned METROPCS, INC. 5562 JUPITER FL
2006-06-26 561-401-6XXX 6000–6999Assigned METROPCS, INC. 5562 JUPITER FL
2006-06-26 561-401-7XXX 7000–7999Assigned METROPCS, INC. 5562 JUPITER FL
2006-06-26 561-401-8XXX 8000–8999Assigned METROPCS, INC. 5562 JUPITER FL
2006-06-26 561-692-1XXX 1000–1999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2006-06-26 561-692-2XXX 2000–2999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2006-06-14 561-613-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2006-06-14 561-862-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2006-06-12 561-322-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2006-05-26 561-509-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOYNTONBCH FL
2006-05-15 561-598-7XXX 7000–7999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 WPALMBEACH FL
2006-05-09 561-692-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J BELLEGLADE FL
2006-04-17 561-277-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 JUPITER FL
2006-04-12 561-862-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2006-04-11 561-869-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2006-04-11 561-869-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2006-03-24 561-623-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2006-03-10 561-208-9XXX 9000–9999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 BOCA RATON FL
2006-03-09 561-314-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2006-03-08 561-634-6XXX 6000–6999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2006-03-08 561-752-6XXX 6000–6999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2006-03-08 561-767-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2006-03-01 561-847-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 WPALMBEACH FL
2006-02-15 561-598-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2006-02-15 561-692-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BELLEGLADE FL
2006-02-10 561-314-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2006-02-10 561-891-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2006-02-10 561-891-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2006-02-10 561-914-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BELLEGLADE 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.