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 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
2013-06-20 561-410-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2013-06-07 561-325-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2013-05-29 561-410-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WPALMBEACH FL
2013-05-28 561-409-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2013-05-28 561-409-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2013-05-28 561-409-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2013-05-14 561-229-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2013-05-14 561-229-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2013-05-14 561-229-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2013-05-14 561-229-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2013-05-14 561-229-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2013-05-14 561-494-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2013-05-14 561-494-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2013-05-14 561-803-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2013-05-13 561-923-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2013-04-26 561-270-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E DELRAY BCH FL
2013-04-26 561-270-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E DELRAY BCH FL
2013-04-26 561-557-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2013-04-26 561-557-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2013-04-26 561-557-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2013-04-26 561-557-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2013-04-26 561-557-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2013-04-26 561-557-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2013-04-26 561-557-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2013-04-26 561-557-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2013-04-26 561-557-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2013-04-25 561-413-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BOYNTONBCH FL
2013-04-25 561-413-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BOYNTONBCH FL
2013-04-16 561-270-8XXX 8000–8999Assigned IP HORIZON LLC 515J DELRAY BCH FL
2013-04-04 561-203-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J JUPITER FL
2013-04-01 561-409-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2013-04-01 561-409-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2013-03-27 561-229-0XXX 0000–0999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E WPALMBEACH FL
2013-03-27 561-229-1XXX 1000–1999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E WPALMBEACH FL
2013-03-27 561-270-0XXX 0000–0999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E DELRAY BCH FL
2013-03-27 561-270-1XXX 1000–1999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E DELRAY BCH FL
2013-03-27 561-336-9XXX 9000–9999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E BOYNTONBCH FL
2013-03-27 561-413-0XXX 0000–0999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E BOYNTONBCH FL
2013-03-22 561-413-1XXX 1000–1999Assigned IP HORIZON LLC 515J BOYNTONBCH FL
2013-03-20 561-410-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2013-03-18 561-320-5XXX 5000–5999Assigned IP HORIZON LLC 515J JUPITER FL
2013-03-18 561-342-4XXX 4000–4999Assigned IP HORIZON LLC 515J PAHOKEE FL
2013-03-18 561-409-0XXX 0000–0999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E BOCA RATON FL
2013-03-18 561-409-8XXX 8000–8999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E BOCA RATON FL
2013-03-14 561-366-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2013-03-14 561-408-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2013-03-14 561-408-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2013-03-14 561-408-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2013-03-14 561-408-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2013-03-14 561-408-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH 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.