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
2022-11-10 425-725-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E HALLS LAKE WA
2022-11-10 425-725-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E HALLS LAKE WA
2022-11-10 425-725-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E HALLS LAKE WA
2022-11-10 425-725-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E HALLS LAKE WA
2022-11-10 425-725-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E HALLS LAKE WA
2022-11-07 425-384-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BOTHELL WA
2022-11-01 425-552-9XXX 9000–9999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2022-10-27 425-380-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KIRKLAND WA
2022-10-27 425-380-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KIRKLAND WA
2022-10-26 425-380-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F KIRKLAND WA
2022-10-26 425-384-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BOTHELL WA
2022-10-19 425-384-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BOTHELL WA
2022-10-19 425-475-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HALLS LAKE WA
2022-10-17 425-554-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H EVERETT WA
2022-10-17 425-554-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H EVERETT WA
2022-10-17 425-554-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H EVERETT WA
2022-10-17 425-554-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H EVERETT WA
2022-10-17 425-554-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H EVERETT WA
2022-10-17 425-554-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H EVERETT WA
2022-10-17 425-554-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H EVERETT WA
2022-10-17 425-554-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H EVERETT WA
2022-10-17 425-554-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H EVERETT WA
2022-10-17 425-554-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H EVERETT WA
2022-10-11 425-380-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2022-10-11 425-380-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2022-10-11 425-380-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E KIRKLAND WA
2022-10-11 425-400-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E AMES LAKE WA
2022-09-30 425-547-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 RENTON WA
2022-09-19 425-540-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E BOTHELL WA
2022-09-19 425-540-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E BOTHELL WA
2022-09-19 425-540-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E BOTHELL WA
2022-09-19 425-547-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RENTON WA
2022-09-13 425-464-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E FALL CITY WA
2022-09-13 425-464-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E FALL CITY WA
2022-09-13 425-464-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E FALL CITY WA
2022-09-13 425-475-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E HALLS LAKE WA
2022-09-13 425-475-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E HALLS LAKE WA
2022-09-13 425-475-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E HALLS LAKE WA
2022-09-13 425-475-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E HALLS LAKE WA
2022-09-13 425-494-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2022-09-13 425-600-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2022-09-13 425-600-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2022-09-13 425-600-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2022-09-13 425-600-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E ISSAQUAH WA
2022-09-13 425-842-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E NORTH BEND WA
2022-09-13 425-842-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E NORTH BEND WA
2022-09-13 425-842-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E NORTH BEND WA
2022-09-13 425-842-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E NORTH BEND WA
2022-09-06 425-546-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2022-09-06 425-546-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BELLEVUE 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.