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
2026-09-11 253-379-7XXX 7000–7999Assigned EXIANT COMMUNICATIONS LLC 114J ROY WA
2026-09-03 253-362-7XXX 7000–7999Assigned EXIANT COMMUNICATIONS LLC 114J SUMNER WA
2026-08-20 253-625-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J TACOMA WA
2026-07-24 253-443-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2026-07-24 253-443-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2026-07-10 253-452-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F KENT WA
2026-07-08 253-249-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J AUBURN WA
2026-06-22 253-430-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F GIG HARBOR WA
2026-06-15 253-430-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 GIG HARBOR WA
2026-06-12 253-501-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J SUMNER WA
2026-06-12 253-867-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J KENT WA
2026-06-05 253-443-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2026-05-11 253-344-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2026-05-11 253-517-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2026-05-11 253-523-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2026-05-11 253-587-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMA WA
2026-05-11 253-587-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMA WA
2026-05-11 253-587-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMA WA
2026-04-20 253-443-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2026-04-20 253-443-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2026-03-30 253-883-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2026-03-20 253-450-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMAWVLY WA
2026-03-17 253-587-0XXX 0000–0999Assigned LIVEWIRE TELECOM LLC 048L TACOMA WA
2026-03-17 253-587-8XXX 8000–8999Assigned LIVEWIRE TELECOM LLC 048L TACOMA WA
2026-02-13 253-440-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMA WA
2026-02-06 253-419-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2026-01-23 253-235-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2026-01-23 253-440-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMA WA
2026-01-23 253-443-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2026-01-20 253-443-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2026-01-08 253-296-4XXX 4000–4999Assigned TELNYX LLC 073H DES MOINES WA
2025-12-19 253-440-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J TACOMA WA
2025-12-05 253-436-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2025-12-05 253-436-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2025-12-05 253-436-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2025-12-05 253-436-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2025-12-05 253-440-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-12-05 253-440-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-12-05 253-440-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-12-05 253-440-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-12-05 253-440-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2025-11-14 253-427-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMA WA
2025-11-14 253-436-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2025-11-07 253-362-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUMNER WA
2025-11-07 253-429-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2025-11-07 253-436-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2025-11-07 253-436-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2025-11-07 253-436-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2025-11-07 253-436-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2025-11-07 253-436-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUBURN 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.