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
2013-02-13 360-926-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2013-02-08 360-964-1XXX 1000–1999Assigned CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 2408 MONTESANO WA
2013-02-06 360-703-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LONGVIEW WA
2013-01-16 360-590-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ABERDEEN WA
2013-01-11 360-328-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2013-01-11 360-582-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2013-01-11 360-746-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2013-01-11 360-824-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2013-01-11 360-952-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2012-12-20 360-702-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BATTLEGRND WA
2012-12-20 360-849-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CATHLAMET WA
2012-12-18 360-500-8XXX 8000–8999Assigned METROPCS, INC. 5562 ABERDEEN WA
2012-12-18 360-982-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2012-12-12 360-543-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2012-12-12 360-688-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2012-12-12 360-836-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2012-12-11 360-688-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2012-12-03 360-227-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J BELFAIR WA
2012-11-29 360-310-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ABERDEEN WA
2012-11-29 360-926-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2012-11-20 360-267-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 GRAYHARBCO WA
2012-11-20 360-344-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 PTTOWNSEND WA
2012-11-20 360-366-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2012-11-08 360-386-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MARYSVILLE WA
2012-11-07 360-688-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2012-11-07 360-688-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2012-10-29 360-603-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2012-10-22 360-952-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2012-10-19 360-949-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2012-10-16 360-774-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PTTOWNSEND WA
2012-10-10 360-523-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 CENTRALIA WA
2012-10-10 360-982-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2012-10-09 360-523-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CENTRALIA WA
2012-10-09 360-594-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2012-10-09 360-912-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2012-09-21 360-550-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2012-09-20 360-328-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2012-09-20 360-328-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2012-09-20 360-488-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MT VERNON WA
2012-09-14 360-255-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WHATCOMCTY WA
2012-09-14 360-865-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SILVERDALE WA
2012-09-13 360-216-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CAMAS WA
2012-09-13 360-216-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CAMAS WA
2012-09-13 360-346-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 ELMA WA
2012-09-06 360-688-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2012-09-06 360-688-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 OLYMPIA WA
2012-09-06 360-949-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2012-09-06 360-949-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2012-09-04 360-209-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ABERDEEN WA
2012-08-31 360-527-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY 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.