NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

4,126 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
NEW CINGULAR WIRELESS PCS, LLC - IL 322
NEW CINGULAR WIRELESS PCS, LLC - DC 307
ONVOY, LLC - CA 199
ONVOY, LLC - NJ 161
ONVOY, LLC - TX 133
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
2026-05-27 938-304-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ATHENS AL
2026-05-27 938-304-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ATHENS AL
2026-05-27 948-218-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRANKLIN VA
2026-05-27 948-270-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON4 VA
2026-05-27 959-202-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 TORRINGTON CT
2026-05-27 959-279-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2026-05-27 959-279-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2026-05-27 959-279-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2026-05-27 959-279-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2026-05-27 959-280-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2026-05-27 959-280-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2026-05-27 971-818-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F AURORA OR
2026-05-27 984-346-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K BONLEE NC
2026-05-27 985-341-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HOUMA LA
2026-05-26 205-284-1XXX 1000–1999Assigned IP HORIZON LLC 515J COLUMBIANA AL
2026-05-26 205-284-2XXX 2000–2999Assigned IP HORIZON LLC 515J COLUMBIANA AL
2026-05-26 205-294-6XXX 6000–6999Assigned IP HORIZON LLC 515J CLANTON AL
2026-05-26 205-294-8XXX 8000–8999Assigned IP HORIZON LLC 515J CLANTON AL
2026-05-26 205-679-1XXX 1000–1999Assigned IP HORIZON LLC 515J MONTEVALLO AL
2026-05-26 205-679-2XXX 2000–2999Assigned IP HORIZON LLC 515J MONTEVALLO AL
2026-05-26 205-775-4XXX 4000–4999Assigned IP HORIZON LLC 515J CHELSEA AL
2026-05-26 205-775-5XXX 5000–5999Assigned IP HORIZON LLC 515J CHELSEA AL
2026-05-26 251-469-2XXX 2000–2999Assigned IP HORIZON LLC 515J MOBILE AL
2026-05-26 251-469-3XXX 3000–3999Assigned IP HORIZON LLC 515J MOBILE AL
2026-05-26 314-562-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J LADUE MO
2026-05-26 331-338-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J AURORA IL
2026-05-26 331-339-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J AURORA IL
2026-05-26 334-334-1XXX 1000–1999Assigned IP HORIZON LLC 515J MONTGOMERY AL
2026-05-26 334-334-2XXX 2000–2999Assigned IP HORIZON LLC 515J MONTGOMERY AL
2026-05-26 334-938-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WETUMPKA AL
2026-05-26 360-244-8XXX 8000–8999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F LONG BEACH WA
2026-05-26 360-745-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F PORTLUDLOW WA
2026-05-26 360-776-5XXX 5000–5999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BUCKLEY WA
2026-05-26 412-702-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J PTGSBNZN22 PA
2026-05-26 424-569-1XXX 1000–1999Assigned NUSO, LLC 732J SNMN SNMN CA
2026-05-26 424-572-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDONDO CA
2026-05-26 424-572-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDONDO CA
2026-05-26 424-572-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDONDO CA
2026-05-26 509-419-4XXX 4000–4999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F COLVILLE WA
2026-05-26 509-996-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F TWISP WA
2026-05-26 539-287-3XXX 3000–3999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H YALE OK
2026-05-26 539-877-7XXX 7000–7999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H HARTSHORNE OK
2026-05-26 571-749-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J WSNGTNZN17 VA
2026-05-26 571-764-5XXX 5000–5999Assigned TELNYX LLC 073H OCCOQUAN VA
2026-05-26 608-865-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GALESVILLE WI
2026-05-26 657-871-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2026-05-26 657-871-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2026-05-26 657-871-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2026-05-26 657-871-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2026-05-26 657-871-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA

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.