NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2015-01-08 561-571-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C BOCA RATON FL
2014-12-22 561-570-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-570-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-570-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-570-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-570-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-570-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-570-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-614-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-614-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-614-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-614-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-614-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-614-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2014-12-22 561-757-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2014-12-11 561-757-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C BOCA RATON FL
2014-12-09 561-708-3XXX 3000–3999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2014-12-05 561-510-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JUPITER FL
2014-12-05 561-510-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JUPITER FL
2014-12-05 561-510-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JUPITER FL
2014-12-05 561-614-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 WPALMBEACH FL
2014-12-03 561-510-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JUPITER FL
2014-12-03 561-510-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JUPITER FL
2014-12-03 561-510-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JUPITER FL
2014-12-03 561-570-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 WPALMBEACH FL
2014-12-03 561-609-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2014-12-03 561-609-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2014-12-03 561-609-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2014-12-03 561-609-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2014-12-03 561-757-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2014-12-03 561-757-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2014-12-01 561-609-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2014-11-20 561-570-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2014-11-20 561-570-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2014-11-19 561-510-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C JUPITER FL
2014-11-19 561-510-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C JUPITER FL
2014-11-19 561-510-9XXX 9000–9999Assigned ONVOY, LLC - FL 937C JUPITER FL
2014-11-19 561-563-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DELRAY BCH FL
2014-11-19 561-877-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOYNTONBCH FL
2014-11-14 561-475-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2014-11-14 561-475-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2014-11-14 561-475-3XXX 3000–3999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2014-11-14 561-475-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2014-11-14 561-475-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2014-11-14 561-475-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2014-11-14 561-475-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2014-11-14 561-475-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2014-11-14 561-475-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2014-10-16 561-475-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2014-10-16 561-563-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DELRAY BCH FL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.