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
2008-05-30 509-653-4XXX 4000–4999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D NACHES WA
2008-05-30 509-942-5XXX 5000–5999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D RICHLAND WA
2008-05-29 509-284-5XXX 5000–5999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D TEKOA WA
2008-05-29 509-288-5XXX 5000–5999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D COLFAX WA
2008-05-29 509-289-3XXX 3000–3999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D EPHRATA WA
2008-05-29 509-486-3XXX 3000–3999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D TONASKET WA
2008-05-29 509-566-6XXX 6000–6999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D POMEROY WA
2008-05-29 509-587-2XXX 2000–2999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D BREWSTER WA
2008-05-29 509-631-5XXX 5000–5999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D COULEE DAM WA
2008-05-29 509-779-5XXX 5000–5999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D CURLEW WA
2008-05-22 509-279-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SPOKANE WA
2008-05-22 509-279-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SPOKANE WA
2008-05-22 509-279-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SPOKANE WA
2008-05-14 509-619-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENNEWICK WA
2008-05-14 509-619-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENNEWICK WA
2008-05-13 509-690-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 COLVILLE WA
2008-05-13 509-846-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OMAK WA
2008-05-07 509-350-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MOSES LAKE WA
2008-04-18 509-281-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WH SALMON WA
2008-04-18 509-365-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LYLE WA
2008-04-18 509-748-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DALLESPORT WA
2008-04-11 509-342-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPOKANE WA
2008-04-11 509-342-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPOKANE WA
2008-04-11 509-368-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPOKANE WA
2008-04-11 509-893-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPOKANE WA
2008-04-08 509-439-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SUNNYSIDE WA
2008-04-07 509-885-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WENATCHEE WA
2008-04-07 509-885-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WENATCHEE WA
2008-03-27 509-313-0XXX 0000–0999Assigned QWEST CORPORATION 9638 SPOKANE WA
2008-03-27 509-313-1XXX 1000–1999Assigned QWEST CORPORATION 9638 SPOKANE WA
2008-03-27 509-313-2XXX 2000–2999Assigned QWEST CORPORATION 9638 SPOKANE WA
2008-03-27 509-313-3XXX 3000–3999Assigned QWEST CORPORATION 9638 SPOKANE WA
2008-03-27 509-313-4XXX 4000–4999Assigned QWEST CORPORATION 9638 SPOKANE WA
2008-03-27 509-313-5XXX 5000–5999Assigned QWEST CORPORATION 9638 SPOKANE WA
2008-03-27 509-313-6XXX 6000–6999Assigned QWEST CORPORATION 9638 SPOKANE WA
2008-03-27 509-313-7XXX 7000–7999Assigned QWEST CORPORATION 9638 SPOKANE WA
2008-03-27 509-313-8XXX 8000–8999Assigned QWEST CORPORATION 9638 SPOKANE WA
2008-03-27 509-313-9XXX 9000–9999Assigned QWEST CORPORATION 9638 SPOKANE WA
2008-03-24 509-823-2XXX 2000–2999Assigned QWEST CORPORATION 9638 YAKIMA WA
2008-03-19 509-380-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PASCO WA
2008-03-19 509-738-5XXX 5000–5999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D KETTLE FLS WA
2008-03-18 509-420-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RICHLAND WA
2008-03-18 509-715-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PULLMAN WA
2008-03-11 509-540-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WALLAWALLA WA
2008-03-11 509-688-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-03-11 509-714-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-03-06 509-730-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WALLAWALLA WA
2008-02-27 509-347-3XXX 3000–3999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D RITZVILLE WA
2008-02-26 509-416-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E PASCO WA
2008-02-25 509-580-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SELAH 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.