NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 360
EXIANT COMMUNICATIONS LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2017-12-01 360-644-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LONGVIEW WA
2017-11-28 360-723-6XXX 6000–6999Assigned METROPCS, INC. 5562 BATTLEGRND WA
2017-11-28 360-723-7XXX 7000–7999Assigned METROPCS, INC. 5562 BATTLEGRND WA
2017-11-21 360-559-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CENTRALIA WA
2017-11-10 360-623-6XXX 6000–6999Assigned METROPCS, INC. 5562 CENTRALIA WA
2017-11-07 360-366-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2017-11-07 360-409-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CAMAS WA
2017-11-07 360-605-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2017-11-07 360-605-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2017-11-07 360-644-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 LONGVIEW WA
2017-11-07 360-764-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2017-11-01 360-826-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E MT VERNON WA
2017-11-01 360-826-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E MT VERNON WA
2017-10-30 360-548-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2017-10-30 360-548-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2017-10-25 360-760-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 LA CENTER WA
2017-10-20 360-764-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2017-10-20 360-764-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2017-10-20 360-764-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2017-10-19 360-764-1XXX 1000–1999Assigned METROPCS, INC. 5562 OLYMPIA WA
2017-10-13 360-764-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2017-10-10 360-689-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2017-10-10 360-867-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2017-10-10 360-900-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2017-10-10 360-926-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2017-09-14 360-399-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2017-09-14 360-552-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELFAIR WA
2017-09-14 360-605-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2017-09-14 360-605-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2017-09-13 360-797-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F PT ANGELES WA
2017-09-12 360-218-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2017-09-12 360-227-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E BELFAIR WA
2017-09-12 360-295-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E VADER WA
2017-09-12 360-302-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E PTTOWNSEND WA
2017-09-12 360-317-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SAN JUAN WA
2017-09-12 360-502-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E MARYSVILLE WA
2017-09-12 360-544-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E OAK HARBOR WA
2017-09-12 360-660-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2017-09-12 360-776-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E BUCKLEY WA
2017-09-12 360-858-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E ROCHESTER WA
2017-09-06 360-684-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F WHATCOMCTY WA
2017-09-05 360-203-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E FORKS WA
2017-09-05 360-208-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SOUTH BEND WA
2017-09-05 360-210-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E CAMAS WA
2017-09-05 360-217-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SNOHOMISH WA
2017-09-05 360-262-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E CHEHALIS WA
2017-09-05 360-298-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SAN JUAN WA
2017-09-05 360-351-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E PT ANGELES WA
2017-09-05 360-549-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SHELTON WA
2017-09-05 360-605-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E VANCOUVER 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.