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
2018-07-18 509-867-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2018-07-18 509-867-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2018-07-18 509-890-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DEER PARK WA
2018-07-17 509-470-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WENATCHEE WA
2018-07-16 509-866-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SPOKANE WA
2018-07-13 509-745-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DOUGLASCO WA
2018-07-12 509-312-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 ELLENSBURG WA
2018-07-05 509-490-8XXX 8000–8999Assigned METROPCS, INC. 5562 YAKIMA WA
2018-07-05 509-490-9XXX 9000–9999Assigned METROPCS, INC. 5562 YAKIMA WA
2018-07-05 509-567-0XXX 0000–0999Assigned METROPCS, INC. 5562 PASCO WA
2018-07-05 509-567-1XXX 1000–1999Assigned METROPCS, INC. 5562 PASCO WA
2018-06-28 509-836-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SUNNYSIDE WA
2018-06-28 509-840-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SUNNYSIDE WA
2018-06-20 509-260-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F CLE ELUM WA
2018-06-20 509-761-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F MOSES LAKE WA
2018-06-20 509-867-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPOKANE WA
2018-06-19 509-405-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2018-06-19 509-405-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2018-06-19 509-405-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2018-06-19 509-668-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WENATCHEE WA
2018-06-19 509-668-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WENATCHEE WA
2018-06-12 509-615-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ELK-GRNBLF WA
2018-06-11 509-415-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 7274 WENATCHEE WA
2018-06-08 509-537-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PASCO WA
2018-06-08 509-537-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PASCO WA
2018-06-08 509-567-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PASCO WA
2018-05-15 509-866-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SPOKANE WA
2018-04-17 509-498-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CHENEY WA
2018-04-06 509-281-8XXX 8000–8999Assigned ASTOUND BROADBAND, LLC - WA 937F WH SALMON WA
2018-04-06 509-596-5XXX 5000–5999Assigned METROPCS, INC. 5562 CLARKSTON WA
2018-03-27 509-269-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 CONNELL WA
2018-03-21 509-866-1XXX 1000–1999Assigned METROPCS, INC. 5562 SPOKANE WA
2018-03-21 509-866-2XXX 2000–2999Assigned METROPCS, INC. 5562 SPOKANE WA
2018-03-21 509-866-3XXX 3000–3999Assigned METROPCS, INC. 5562 SPOKANE WA
2018-03-20 509-907-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 YAKIMA WA
2018-03-16 509-906-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EPHRATA WA
2018-03-14 509-676-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F WALLAWALLA WA
2018-03-13 509-676-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WALLAWALLA WA
2018-03-06 509-818-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SPOKANE WA
2018-02-14 509-640-5XXX 5000–5999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F COLVILLE WA
2018-01-17 509-906-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EPHRATA WA
2018-01-12 509-866-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SPOKANE WA
2018-01-03 509-581-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENNEWICK WA
2017-12-20 509-771-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MOSES LAKE WA
2017-12-20 509-902-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K YAKIMA WA
2017-12-14 509-866-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D SPOKANE WA
2017-12-07 509-850-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2017-12-07 509-862-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2017-12-07 509-862-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2017-11-28 509-862-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SPOKANE 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.