NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

18 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 983
BANDWIDTH.COM CLEC, LLC - CO 10
ONVOY, LLC - CO 4
T-MOBILE USA, INC. 1
INTRADO COMMUNICATIONS, LLC 1
BOOST SUBSCRIBERCO L.L.C. 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2024-02-08 983-444-7XXX 7000–7999Assigned ONVOY, LLC - CO 026D DENVER CO
2024-02-08 983-444-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D DENVER CO
2024-02-07 983-444-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DENVER CO
2024-02-07 983-444-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DENVER CO
2024-02-07 983-444-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DENVER CO
2024-01-31 983-444-4XXX 4000–4999Assigned WIDE VOICE, LLC - CO 557H DENVER CO
2023-12-20 983-333-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-20 983-333-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-20 983-333-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-20 983-333-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-20 983-333-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-20 983-333-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-20 983-333-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-20 983-333-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-20 983-333-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-15 983-333-3XXX 3000–3999Assigned WIDE VOICE, LLC - CO 557H DENVER CO
2023-12-11 983-777-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-11 983-777-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-11 983-777-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-11 983-777-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-11 983-777-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-11 983-777-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2023-12-11 983-777-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DENVER CO
2023-12-04 983-777-6XXX 6000–6999Assigned NUSO, LLC 732J DENVER CO
2023-12-04 983-983-1XXX 1000–1999Assigned NUSO, LLC 732J LONGMONT CO
2023-12-04 983-983-2XXX 2000–2999Assigned NUSO, LLC 732J LONGMONT CO
2023-12-04 983-999-7XXX 7000–7999Assigned NUSO, LLC 732J DENVER CO
2023-10-03 983-777-7XXX 7000–7999Assigned WIDE VOICE, LLC - CO 557H DENVER CO
2023-10-03 983-777-8XXX 8000–8999Assigned HD CARRIER LLC 321J DENVER CO
2023-09-27 983-999-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DENVER CO
2023-09-27 983-999-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DENVER CO
2023-09-27 983-999-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J DENVER CO
2023-09-06 983-201-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2023-09-06 983-201-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2023-09-06 983-201-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2023-09-06 983-201-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2023-09-06 983-201-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2023-09-06 983-201-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2023-09-06 983-201-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2023-09-06 983-201-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2023-09-06 983-201-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2023-09-06 983-201-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 DENVER CO
2023-08-31 983-200-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D LONGMONT CO
2023-08-31 983-200-9XXX 9000–9999Assigned ONVOY, LLC - CO 026D LONGMONT CO
2023-08-29 983-999-0XXX 0000–0999Assigned ONVOY, LLC - CO 026D DENVER CO
2023-08-29 983-999-2XXX 2000–2999Assigned ONVOY, LLC - CO 026D DENVER CO
2023-08-29 983-999-8XXX 8000–8999Assigned ONVOY, LLC - CO 026D DENVER CO
2023-08-09 983-888-0XXX 0000–0999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F DENVER CO
2023-08-09 983-983-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGMONT CO
2023-08-09 983-983-8XXX 8000–8999Assigned PEERLESS NETWORK OF COLORADO, LLC - CO 278F LONGMONT CO

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.