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
2015-10-29 360-726-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2015-10-22 360-967-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CASTLEROCK WA
2015-10-21 360-768-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VANCOUVER WA
2015-10-14 360-999-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2015-10-14 360-999-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2015-10-14 360-999-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2015-10-09 360-214-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 LONG BEACH WA
2015-10-09 360-454-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2015-10-09 360-595-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2015-10-09 360-633-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2015-10-06 360-810-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2015-10-06 360-986-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ABERDEEN WA
2015-09-30 360-842-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2015-09-30 360-900-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SILVERDALE WA
2015-09-29 360-344-8XXX 8000–8999Assigned ASTOUND BROADBAND, LLC - WA 937F PTTOWNSEND WA
2015-09-29 360-967-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F CASTLEROCK WA
2015-09-28 360-726-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2015-09-28 360-810-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2015-09-24 360-784-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2015-09-23 360-812-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WHATCOMCTY WA
2015-09-22 360-768-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 VANCOUVER WA
2015-09-22 360-810-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2015-09-22 360-998-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 LONGVIEW WA
2015-09-21 360-784-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2015-09-21 360-784-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 VANCOUVER WA
2015-09-21 360-784-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 VANCOUVER WA
2015-09-21 360-784-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 VANCOUVER WA
2015-09-21 360-784-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 VANCOUVER WA
2015-09-17 360-810-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2015-09-17 360-979-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SILVERDALE WA
2015-09-16 360-298-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SAN JUAN WA
2015-09-16 360-406-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2015-09-16 360-454-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2015-09-16 360-499-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OAK HARBOR WA
2015-09-16 360-833-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CAMAS WA
2015-09-16 360-900-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SILVERDALE WA
2015-09-16 360-938-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E WOODLAND WA
2015-09-16 360-938-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E WOODLAND WA
2015-09-15 360-549-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SHELTON WA
2015-09-15 360-622-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SAN JUAN WA
2015-09-15 360-682-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E OAK HARBOR WA
2015-09-15 360-837-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E CAMAS WA
2015-09-15 360-860-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E KINGSTON WA
2015-09-15 360-862-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SNOHOMISH WA
2015-09-15 360-928-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E PT ANGELES WA
2015-09-15 360-986-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2015-09-14 360-572-3XXX 3000–3999Assigned ASTOUND BROADBAND, LLC - WA 937F MARYSVILLE WA
2015-09-11 360-869-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J VANCOUVER WA
2015-09-10 360-469-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E BLACKDIMND WA
2015-09-10 360-469-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E BLACKDIMND 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.