NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
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
2014-10-02 509-968-6XXX 6000–6999Assigned METROPCS, INC. 5562 ELLENSBURG WA
2014-09-26 509-331-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OTHELLO WA
2014-09-26 509-655-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SPOKANE WA
2014-09-26 509-655-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SPOKANE WA
2014-09-26 509-761-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MOSES LAKE WA
2014-09-26 509-820-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENNEWICK WA
2014-09-23 509-818-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SPOKANE WA
2014-09-23 509-818-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SPOKANE WA
2014-09-18 509-339-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PULLMAN WA
2014-09-18 509-655-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-09-18 509-655-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-09-18 509-655-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-09-18 509-820-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2014-09-12 509-212-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2014-09-12 509-309-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-09-12 509-319-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-09-12 509-319-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-09-12 509-638-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-09-12 509-792-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PASCO WA
2014-09-04 509-792-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E PASCO WA
2014-08-28 509-309-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SPOKANE WA
2014-08-28 509-350-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MOSES LAKE WA
2014-08-28 509-899-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 ELLENSBURG WA
2014-08-27 509-968-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELLENSBURG WA
2014-08-19 509-309-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-08-19 509-309-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-08-19 509-309-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-08-15 509-237-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EPHRATA WA
2014-08-15 509-707-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MOSES LAKE WA
2014-08-14 509-212-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2014-08-14 509-423-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WENATCHEE WA
2014-08-14 509-423-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WENATCHEE WA
2014-08-14 509-876-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WALLAWALLA WA
2014-08-13 509-207-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REPUBLIC WA
2014-07-31 509-769-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLARKSTON WA
2014-07-29 509-212-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENNEWICK WA
2014-07-29 509-319-2XXX 2000–2999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SPOKANE WA
2014-07-24 509-367-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 YAKIMA WA
2014-07-17 509-319-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-07-17 509-319-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-07-17 509-319-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2014-07-17 509-319-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SPOKANE WA
2014-07-17 509-423-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WENATCHEE WA
2014-07-17 509-439-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SUNNYSIDE WA
2014-07-17 509-578-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 RICHLAND WA
2014-07-17 509-792-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PASCO WA
2014-07-16 509-212-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2014-07-03 509-367-0XXX 0000–0999Assigned METROPCS, INC. 5562 YAKIMA WA
2014-07-03 509-367-1XXX 1000–1999Assigned METROPCS, INC. 5562 YAKIMA WA
2014-07-03 509-367-2XXX 2000–2999Assigned METROPCS, INC. 5562 YAKIMA WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.