NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 253
EXIANT COMMUNICATIONS 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
2023-03-16 253-452-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E KENT WA
2023-03-14 253-532-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TACOMA WA
2023-02-22 253-604-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J PUYALLUP WA
2023-02-17 253-362-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUMNER WA
2023-02-03 253-354-0XXX 0000–0999Assigned TELNYX LLC 073H TACOMA WA
2023-01-30 253-378-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E AUBURN WA
2023-01-30 253-378-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E AUBURN WA
2023-01-30 253-378-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E AUBURN WA
2023-01-24 253-378-0XXX 0000–0999Assigned TELNYX LLC 073H AUBURN WA
2023-01-23 253-385-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E GRAHAM WA
2023-01-23 253-385-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E GRAHAM WA
2023-01-23 253-385-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E GRAHAM WA
2023-01-17 253-452-0XXX 0000–0999Assigned TELNYX LLC 073H KENT WA
2023-01-13 253-378-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2023-01-13 253-378-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2023-01-13 253-378-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2023-01-13 253-378-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2023-01-13 253-402-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2023-01-10 253-362-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SUMNER WA
2023-01-10 253-452-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E KENT WA
2023-01-10 253-532-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E TACOMA WA
2022-12-15 253-402-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E AUBURN WA
2022-12-15 253-402-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E AUBURN WA
2022-12-08 253-296-2XXX 2000–2999Assigned TELNYX LLC 073H DES MOINES WA
2022-11-17 253-354-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E TACOMA WA
2022-11-07 253-296-0XXX 0000–0999Assigned METROPCS, INC. 5562 DES MOINES WA
2022-10-28 253-340-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E KENT WA
2022-10-28 253-340-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E KENT WA
2022-10-27 253-340-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2022-10-27 253-402-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E AUBURN WA
2022-10-27 253-402-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E AUBURN WA
2022-10-27 253-402-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E AUBURN WA
2022-10-26 253-215-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E ROY WA
2022-10-20 253-528-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E DES MOINES WA
2022-10-20 253-642-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E DES MOINES WA
2022-10-20 253-681-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E DES MOINES WA
2022-10-20 253-765-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E DES MOINES WA
2022-10-20 253-765-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E DES MOINES WA
2022-10-20 253-900-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E GIG HARBOR WA
2022-10-20 253-900-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E GIG HARBOR WA
2022-10-20 253-900-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E GIG HARBOR WA
2022-10-20 253-900-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E GIG HARBOR WA
2022-10-14 253-364-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SUMNER WA
2022-10-14 253-364-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SUMNER WA
2022-10-14 253-364-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SUMNER WA
2022-10-14 253-364-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SUMNER WA
2022-10-14 253-364-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E SUMNER WA
2022-10-14 253-364-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SUMNER WA
2022-10-14 253-683-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E TACOMA WA
2022-10-14 253-683-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E TACOMA WA

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.