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
2020-07-15 509-796-9XXX 9000–9999Assigned COMPUTERS 5*, INC. DBA LOCALTEL - WA 3229 REARDAN WA
2020-07-15 509-816-8XXX 8000–8999Assigned FRACTEL, LLC 965H SPOKANE WA
2020-07-09 509-346-4XXX 4000–4999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D OTHELLO WA
2020-07-09 509-414-4XXX 4000–4999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D ELK-GRNBLF WA
2020-07-09 509-504-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 YAKIMA WA
2020-07-09 509-563-1XXX 1000–1999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D COLVILLE WA
2020-07-09 509-621-4XXX 4000–4999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D NEWMANLAKE WA
2020-07-09 509-651-3XXX 3000–3999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D DEER PARK WA
2020-07-09 509-732-2XXX 2000–2999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D NORTHPORT WA
2020-07-09 509-769-4XXX 4000–4999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D CLARKSTON WA
2020-07-09 509-935-2XXX 2000–2999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D CHEWELAH WA
2020-07-08 509-229-5XXX 5000–5999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D UNIONTOWN WA
2020-07-08 509-255-2XXX 2000–2999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D LIBERTY LK WA
2020-07-07 509-490-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 YAKIMA WA
2020-07-07 509-501-5XXX 5000–5999Assigned COMPUTERS 5*, INC. DBA LOCALTEL - WA 3229 ODESSA WA
2020-07-02 509-418-6XXX 6000–6999Assigned METROPCS, INC. 5562 SPOKANE WA
2020-07-02 509-418-7XXX 7000–7999Assigned METROPCS, INC. 5562 SPOKANE WA
2020-07-02 509-450-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EPHRATA WA
2020-07-01 509-205-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENNEWICK WA
2020-06-24 509-383-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E GRANGER WA
2020-06-24 509-400-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E MATTAWA WA
2020-06-24 509-584-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E WAPATO WA
2020-06-24 509-642-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E HARRAH WA
2020-06-24 509-776-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E COLUMBIA WA
2020-06-24 509-864-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E TOPPENISH WA
2020-06-24 509-874-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E WHITE SWAN WA
2020-06-24 509-875-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E PATERSON WA
2020-06-24 509-894-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E MABTON WA
2020-06-24 509-973-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E WHITSTRAN WA
2020-06-19 509-900-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2020-06-19 509-900-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2020-06-19 509-900-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2020-06-19 509-900-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SPOKANE WA
2020-06-18 509-800-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E CLARKSTON WA
2020-06-18 509-800-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E CLARKSTON WA
2020-06-17 509-284-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E TEKOA WA
2020-06-17 509-284-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E TEKOA WA
2020-06-17 509-402-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E GRANDVIEW WA
2020-06-17 509-402-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E GRANDVIEW WA
2020-06-17 509-906-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E EPHRATA WA
2020-06-12 509-410-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E PASCO WA
2020-06-09 509-502-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SUNNYSIDE WA
2020-06-02 509-900-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SPOKANE WA
2020-05-22 509-741-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WENATCHEE WA
2020-05-21 509-740-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OMAK WA
2020-05-06 509-503-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2020-05-06 509-666-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2020-05-06 509-666-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2020-05-06 509-666-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2020-05-06 509-666-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 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.