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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2006-11-21 360-348-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SNOHOMISH WA
2006-11-15 360-232-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LONGVIEW WA
2006-11-15 360-841-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WOODLAND WA
2006-11-15 360-967-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CASTLEROCK WA
2006-11-14 360-477-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2006-11-14 360-535-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2006-11-14 360-535-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2006-11-13 360-333-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2006-11-03 360-718-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F VANCOUVER WA
2006-10-30 360-778-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2006-10-30 360-778-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2006-10-20 360-841-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E WOODLAND WA
2006-10-17 360-296-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2006-10-17 360-296-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2006-10-10 360-627-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BREMERTON WA
2006-10-10 360-627-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BREMERTON WA
2006-10-10 360-773-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2006-10-10 360-773-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2006-10-10 360-773-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2006-10-10 360-773-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2006-10-06 360-508-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CENTRALIA WA
2006-10-06 360-860-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KINGSTON WA
2006-10-06 360-957-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGVIEW WA
2006-10-05 360-229-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SHELTON WA
2006-10-04 360-773-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-10-04 360-773-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-10-04 360-773-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-10-04 360-773-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-10-04 360-773-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-10-03 360-584-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2006-09-26 360-631-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2006-09-26 360-772-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-09-26 360-915-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2006-09-26 360-915-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2006-09-26 360-915-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2006-09-18 360-266-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E CHEHALIS WA
2006-09-18 360-549-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SHELTON WA
2006-09-18 360-589-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2006-09-18 360-857-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E RIDGEFIELD WA
2006-09-17 360-205-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E BELFAIR WA
2006-09-17 360-443-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E PORT ORCH WA
2006-09-17 360-551-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SILVERDALE WA
2006-09-17 360-565-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E PT ANGELES WA
2006-09-17 360-584-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2006-09-17 360-623-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E CENTRALIA WA
2006-09-17 360-774-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E PTTOWNSEND WA
2006-09-17 360-824-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E BREMERTON WA
2006-09-17 360-915-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2006-09-17 360-915-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2006-09-17 360-915-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA 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.