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
2018-08-13 561-399-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2018-08-13 561-399-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2018-08-13 561-399-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2018-08-13 561-399-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2018-08-13 561-399-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2018-08-13 561-399-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2018-07-31 561-343-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2018-07-31 561-343-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2018-07-31 561-343-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2018-07-31 561-343-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2018-07-26 561-343-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 BOCA RATON FL
2018-07-26 561-781-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C JUPITER FL
2018-07-24 561-344-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DELRAY BCH FL
2018-07-24 561-344-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DELRAY BCH FL
2018-07-24 561-344-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DELRAY BCH FL
2018-07-24 561-344-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DELRAY BCH FL
2018-07-23 561-675-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2018-07-23 561-802-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2018-07-23 561-802-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2018-07-23 561-805-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2018-07-23 561-805-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2018-07-18 561-377-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2018-07-18 561-377-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2018-07-18 561-671-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2018-07-18 561-671-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2018-07-17 561-264-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C PAHOKEE FL
2018-07-17 561-286-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C BELLEGLADE FL
2018-07-17 561-359-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C DELRAY BCH FL
2018-07-17 561-931-6XXX 6000–6999Assigned ONVOY, LLC - FL 937C BOCA RATON FL
2018-06-25 561-903-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 BOYNTONBCH FL
2018-06-22 561-377-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2018-06-22 561-377-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2018-06-22 561-377-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2018-06-21 561-566-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2018-06-21 561-566-6XXX 6000–6999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2018-06-21 561-903-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2018-06-18 561-377-3XXX 3000–3999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2018-05-24 561-377-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WPALMBEACH FL
2018-05-24 561-377-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WPALMBEACH FL
2018-05-24 561-377-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WPALMBEACH FL
2018-05-24 561-377-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WPALMBEACH FL
2018-05-22 561-781-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C JUPITER FL
2018-05-21 561-356-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2018-05-21 561-356-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2018-05-21 561-356-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2018-05-21 561-356-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2018-05-21 561-356-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2018-05-21 561-356-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2018-05-21 561-972-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JUPITER FL
2018-04-24 561-903-4XXX 4000–4999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E BOYNTONBCH 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.