NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

8 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 509
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 3
NEW CINGULAR WIRELESS PCS, LLC 2
EXIANT COMMUNICATIONS LLC 2
LEVEL 3 COMMUNICATIONS, LLC - WA 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2022-07-21 509-802-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2022-07-21 509-802-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2022-07-15 509-970-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2022-07-15 509-970-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2022-07-15 509-970-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2022-07-15 509-970-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2022-07-14 509-236-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E EDWALLTYLR WA
2022-07-14 509-245-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SPANGLE WA
2022-07-01 509-652-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SPRINGDALE WA
2022-07-01 509-652-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SPRINGDALE WA
2022-07-01 509-652-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SPRINGDALE WA
2022-07-01 509-652-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SPRINGDALE WA
2022-06-30 509-510-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OTHELLO WA
2022-06-28 509-223-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E LOOMIS WA
2022-06-27 509-419-0XXX 0000–0999Assigned COMMIO, LLC 939H COLVILLE WA
2022-06-27 509-516-7XXX 7000–7999Assigned COMMIO, LLC 939H WALLAWALLA WA
2022-06-27 509-615-1XXX 1000–1999Assigned COMMIO, LLC 939H ELK-GRNBLF WA
2022-06-20 509-214-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWMANLAKE WA
2022-06-17 509-517-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 YAKIMA WA
2022-06-17 509-840-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUNNYSIDE WA
2022-06-10 509-827-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 RICHLAND WA
2022-06-09 509-239-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E EDWALLTYLR WA
2022-05-31 509-241-9XXX 9000–9999Assigned TELNYX LLC 073H SPOKANE WA
2022-05-24 509-996-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 TWISP WA
2022-05-23 509-206-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CLARKSTON WA
2022-05-19 509-970-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SPOKANE WA
2022-05-13 509-208-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 YAKIMA WA
2022-05-13 509-516-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WALLAWALLA WA
2022-05-10 509-434-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2022-05-10 509-514-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2022-04-28 509-236-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E EDWALLTYLR WA
2022-04-28 509-712-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SUNNYSIDE WA
2022-04-22 509-824-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SPOKANE WA
2022-04-22 509-862-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SPOKANE WA
2022-04-22 509-957-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SPOKANE WA
2022-04-22 509-957-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SPOKANE WA
2022-04-18 509-208-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 YAKIMA WA
2022-04-18 509-208-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 YAKIMA WA
2022-04-18 509-303-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PROSSER WA
2022-04-18 509-550-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NEWPORT WA
2022-04-13 509-223-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E LOOMIS WA
2022-04-13 509-281-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E WH SALMON WA
2022-04-11 509-514-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2022-04-11 509-514-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2022-04-06 509-241-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SPOKANE WA
2022-04-06 509-864-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E TOPPENISH WA
2022-03-28 509-450-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EPHRATA WA
2022-03-28 509-450-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EPHRATA WA
2022-03-25 509-281-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WH SALMON WA
2022-03-24 509-672-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E RIMROCK 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.