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
2005-09-23 360-689-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2005-09-23 360-689-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2005-09-23 360-852-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2005-09-23 360-852-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2005-09-23 360-852-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2005-09-20 360-292-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2005-09-16 360-485-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2005-09-16 360-584-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2005-09-16 360-584-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2005-09-14 360-500-5XXX 5000–5999Assigned METROPCS, INC. 5562 ABERDEEN WA
2005-09-08 360-333-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VERNON WA
2005-09-08 360-487-7XXX 7000–7999Assigned QWEST CORPORATION 9638 VANCOUVER WA
2005-09-08 360-487-8XXX 8000–8999Assigned QWEST CORPORATION 9638 VANCOUVER WA
2005-09-01 360-422-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2005-09-01 360-588-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2005-08-31 360-597-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2005-08-31 360-597-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2005-08-29 360-292-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 OLYMPIA WA
2005-08-26 360-200-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 LONGVIEW WA
2005-08-26 360-200-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 LONGVIEW WA
2005-08-26 360-610-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2005-08-23 360-548-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MARYSVILLE WA
2005-08-23 360-657-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MARYSVILLE WA
2005-08-16 360-335-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 CAMAS WA
2005-08-16 360-761-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BUCKLEY WA
2005-08-11 360-473-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2005-08-11 360-631-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2005-08-11 360-927-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2005-08-11 360-927-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2005-08-05 360-329-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PORT ORCH WA
2005-07-28 360-486-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2005-07-19 360-390-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 PTTOWNSEND WA
2005-07-13 360-388-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CENTRALIA WA
2005-07-13 360-639-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E OAK HARBOR WA
2005-07-11 360-204-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2005-07-11 360-204-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2005-07-11 360-461-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2005-07-11 360-927-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2005-07-11 360-927-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2005-07-07 360-930-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J POULSBO WA
2005-06-29 360-775-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PT ANGELES WA
2005-06-23 360-584-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2005-06-23 360-584-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2005-06-23 360-584-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2005-06-22 360-841-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WOODLAND WA
2005-06-22 360-852-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2005-06-22 360-852-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2005-06-22 360-852-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2005-06-22 360-852-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2005-06-22 360-852-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 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.