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
2019-01-23 561-426-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-428-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-428-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-428-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-428-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-428-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-428-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-428-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-428-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-428-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-428-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2019-01-23 561-770-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOYNTONBCH FL
2019-01-14 561-258-1XXX 1000–1999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2019-01-14 561-888-5XXX 5000–5999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2019-01-14 561-888-7XXX 7000–7999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2019-01-08 561-365-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2019-01-08 561-888-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2019-01-07 561-788-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2019-01-07 561-788-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2019-01-07 561-888-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2019-01-04 561-581-7XXX 7000–7999Assigned METROPCS, INC. 5562 JUPITER FL
2019-01-04 561-770-2XXX 2000–2999Assigned METROPCS, INC. 5562 BOYNTONBCH FL
2018-12-18 561-359-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DELRAY BCH FL
2018-12-18 561-431-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DELRAY BCH FL
2018-12-18 561-599-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DELRAY BCH FL
2018-12-13 561-418-4XXX 4000–4999Assigned METROPCS, INC. 5562 BOCA RATON FL
2018-12-13 561-581-6XXX 6000–6999Assigned METROPCS, INC. 5562 JUPITER FL
2018-12-13 561-888-1XXX 1000–1999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2018-12-13 561-888-2XXX 2000–2999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2018-12-10 561-286-6XXX 6000–6999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2018-12-07 561-286-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C BELLEGLADE FL
2018-12-07 561-286-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C BELLEGLADE FL
2018-12-07 561-359-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C DELRAY BCH FL
2018-12-07 561-359-9XXX 9000–9999Assigned ONVOY, LLC - FL 937C DELRAY BCH FL
2018-12-07 561-418-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C BOCA RATON FL
2018-12-07 561-418-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C BOCA RATON FL
2018-12-07 561-770-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2018-12-07 561-770-9XXX 9000–9999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2018-11-27 561-888-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2018-11-21 561-770-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BOYNTONBCH FL
2018-11-20 561-581-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C JUPITER FL
2018-11-20 561-581-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C JUPITER FL
2018-11-20 561-581-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C JUPITER FL
2018-11-20 561-581-3XXX 3000–3999Assigned ONVOY, LLC - FL 937C JUPITER FL
2018-11-20 561-581-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C JUPITER FL
2018-11-20 561-581-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C JUPITER FL
2018-11-14 561-234-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2018-11-14 561-418-3XXX 3000–3999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E BOCA RATON FL
2018-11-14 561-421-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2018-11-14 561-421-6XXX 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.