NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

12 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 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
2025-12-15 728-235-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WPALMBEACH FL
2025-12-15 728-235-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WPALMBEACH FL
2025-12-15 728-235-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WPALMBEACH FL
2025-12-12 728-241-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C BOCA RATON FL
2025-12-12 728-241-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C BOCA RATON FL
2025-11-24 728-229-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-11-20 728-233-3XXX 3000–3999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2025-11-05 728-209-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2025-11-05 728-238-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2025-11-05 728-238-6XXX 6000–6999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2025-11-05 728-238-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2025-11-05 728-239-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C JUPITER FL
2025-11-04 728-204-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C DELRAY BCH FL
2025-11-04 728-229-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C BOCA RATON FL
2025-10-30 728-238-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 WPALMBEACH FL
2025-10-29 728-225-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-225-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-225-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-225-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-225-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-225-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-232-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-232-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-232-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-232-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-232-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-232-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-29 728-232-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DELRAY BCH FL
2025-10-01 728-238-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WPALMBEACH FL
2025-09-26 728-240-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-09-26 728-240-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-09-26 728-240-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-09-26 728-240-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-09-26 728-240-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-09-26 728-240-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-09-26 728-240-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-09-26 728-240-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-09-26 728-240-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-09-26 728-240-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2025-09-24 728-220-3XXX 3000–3999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2025-09-24 728-224-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C DELRAY BCH FL
2025-09-24 728-224-9XXX 9000–9999Assigned ONVOY, LLC - FL 937C DELRAY BCH FL
2025-09-24 728-225-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C DELRAY BCH FL
2025-09-24 728-233-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2025-09-24 728-233-6XXX 6000–6999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2025-09-24 728-233-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2025-09-24 728-233-9XXX 9000–9999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2025-09-24 728-238-0XXX 0000–0999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2025-09-24 728-238-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2025-09-24 728-238-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C 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.