NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 425
NEW CINGULAR WIRELESS PCS, LLC 2
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
2023-03-03 425-536-2XXX 2000–2999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BELLEVUE WA
2023-03-03 425-536-3XXX 3000–3999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BELLEVUE WA
2023-03-03 425-536-4XXX 4000–4999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BELLEVUE WA
2023-03-03 425-536-5XXX 5000–5999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BELLEVUE WA
2023-03-03 425-548-2XXX 2000–2999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BOTHELL WA
2023-02-24 425-845-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2023-02-24 425-845-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2023-02-24 425-845-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2023-02-24 425-845-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2023-02-17 425-845-0XXX 0000–0999Assigned TELNYX LLC 073H KIRKLAND WA
2023-02-09 425-946-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 CARNATION WA
2023-02-02 425-472-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E BELLEVUE WA
2023-02-02 425-472-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E BELLEVUE WA
2023-02-02 425-472-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E BELLEVUE WA
2023-02-02 425-472-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E BELLEVUE WA
2023-01-30 425-384-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E BOTHELL WA
2023-01-30 425-384-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E BOTHELL WA
2023-01-30 425-384-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E BOTHELL WA
2023-01-30 425-384-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E BOTHELL WA
2023-01-30 425-832-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2023-01-30 425-832-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2023-01-30 425-832-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2023-01-27 425-472-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2023-01-24 425-548-1XXX 1000–1999Assigned TELNYX LLC 073H BOTHELL WA
2023-01-23 425-546-3XXX 3000–3999Assigned NUSO, LLC 732J BELLEVUE WA
2023-01-20 425-552-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SILVERLAKE WA
2022-12-30 425-461-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 AMES LAKE WA
2022-12-19 425-845-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2022-12-19 425-845-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2022-12-19 425-845-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2022-12-19 425-845-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2022-12-19 425-845-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2022-12-15 425-384-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E BOTHELL WA
2022-12-15 425-400-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E AMES LAKE WA
2022-12-15 425-552-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SILVERLAKE WA
2022-12-06 425-464-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E FALL CITY WA
2022-12-06 425-464-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E FALL CITY WA
2022-12-06 425-464-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E FALL CITY WA
2022-11-16 425-474-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E EVERETT WA
2022-11-16 425-474-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E EVERETT WA
2022-11-16 425-474-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E EVERETT WA
2022-11-16 425-474-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E EVERETT WA
2022-11-16 425-474-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E EVERETT WA
2022-11-16 425-474-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E EVERETT WA
2022-11-15 425-340-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2022-11-15 425-546-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E BELLEVUE WA
2022-11-15 425-546-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E BELLEVUE WA
2022-11-15 425-546-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E BELLEVUE WA
2022-11-15 425-832-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2022-11-15 425-832-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.