NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 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 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
2008-08-08 509-722-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E CHEWELAH WA
2008-08-08 509-749-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E EUREKA WA
2008-08-08 509-796-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E REARDAN WA
2008-08-08 509-887-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E RITZVILLE WA
2008-08-08 509-978-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E NESPELEM WA
2008-08-08 509-980-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E CONNELL WA
2008-08-08 509-982-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E ODESSA WA
2008-08-08 509-983-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E STARBUCK WA
2008-08-08 509-996-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E TWISP WA
2008-08-04 509-591-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 KENNEWICK WA
2008-07-22 509-222-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2008-07-22 509-449-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BRIDGEPORT WA
2008-07-22 509-540-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WALLAWALLA WA
2008-07-22 509-607-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 ELLENSBURG WA
2008-07-16 509-720-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SPOKANE WA
2008-07-16 509-720-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SPOKANE WA
2008-07-16 509-790-8XXX 8000–8999Assigned UNITED STATES CELLULAR - WA 6270 SUNNYSIDE WA
2008-07-16 509-823-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 YAKIMA WA
2008-07-16 509-823-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 YAKIMA WA
2008-07-11 509-369-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KLICKITAT WA
2008-07-09 509-823-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 YAKIMA WA
2008-07-08 509-315-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SPOKANE WA
2008-07-08 509-315-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SPOKANE WA
2008-07-02 509-315-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SPOKANE WA
2008-07-02 509-315-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SPOKANE WA
2008-06-30 509-565-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF WASHINGTON, LLC - WA 7455 MEDICAL LK WA
2008-06-25 509-371-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K RICHLAND WA
2008-06-25 509-774-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WH SALMON WA
2008-06-25 509-823-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2008-06-25 509-876-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WALLAWALLA WA
2008-06-24 509-237-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EPHRATA WA
2008-06-19 509-850-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SPOKANE WA
2008-06-13 509-368-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-06-13 509-368-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-06-13 509-823-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 YAKIMA WA
2008-06-10 509-723-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SPOKANE WA
2008-06-10 509-723-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SPOKANE WA
2008-06-10 509-723-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SPOKANE WA
2008-06-05 509-497-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E BENTONCITY WA
2008-06-05 509-823-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F YAKIMA WA
2008-06-04 509-396-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KENNEWICK WA
2008-06-02 509-255-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LIBERTY LK WA
2008-05-30 509-233-6XXX 6000–6999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D LOON LAKE WA
2008-05-30 509-258-3XXX 3000–3999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D SPRINGDALE WA
2008-05-30 509-283-3XXX 3000–3999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D ROCKFORD WA
2008-05-30 509-285-3XXX 3000–3999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D OAKESDALE WA
2008-05-30 509-287-3XXX 3000–3999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D FARMINGTON WA
2008-05-30 509-349-4XXX 4000–4999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D WARDEN WA
2008-05-30 509-382-6XXX 6000–6999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D DAYTON WA
2008-05-30 509-569-4XXX 4000–4999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D ROSALIA 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.