NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

12 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 728
BANDWIDTH.COM CLEC, LLC - FL 5
ONVOY, LLC - FL 4
NEW CINGULAR WIRELESS PCS, LLC - GA 3
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
2026-01-27 728-239-9XXX 9000–9999Assigned ONVOY, LLC - FL 937C JUPITER FL
2026-01-27 728-243-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2026-01-27 728-529-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2026-01-27 728-529-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2026-01-27 728-600-9XXX 9000–9999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2026-01-21 728-241-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2026-01-21 728-241-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2026-01-21 728-241-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2026-01-20 728-600-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 WPALMBEACH FL
2026-01-15 728-204-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-204-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-204-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-204-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-204-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-204-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-242-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-242-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-242-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-242-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-242-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-242-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-242-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-242-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-242-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-15 728-242-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2026-01-14 728-235-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2026-01-14 728-600-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2026-01-08 728-209-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2026-01-08 728-235-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2026-01-08 728-235-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2026-01-08 728-235-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2026-01-08 728-235-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2025-12-29 728-400-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-12-29 728-400-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-12-29 728-400-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-12-29 728-400-3XXX 3000–3999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-12-29 728-400-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-12-29 728-400-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-12-29 728-400-6XXX 6000–6999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-12-29 728-400-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-12-29 728-400-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-12-29 728-400-9XXX 9000–9999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-12-22 728-529-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2025-12-22 728-529-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2025-12-22 728-529-9XXX 9000–9999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2025-12-19 728-241-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2025-12-18 728-204-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C DELRAY BCH FL
2025-12-18 728-233-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2025-12-18 728-233-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2025-12-18 728-241-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C BOCA RATON 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.