NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 360-890

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 360-890 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 360 blocks

Most active assignees, all time — NPA 360
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5
T-MOBILE USA, INC. 3
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 1
COMCAST IP PHONE, LLC 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
2014-08-15 360-890-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2014-08-15 360-890-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2014-09-12 360-890-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2014-04-21 360-890-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OLYMPIA WA
2014-03-25 360-890-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2014-09-12 360-890-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2014-07-16 360-890-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2014-08-22 360-890-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2014-05-01 360-890-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2014-01-27 360-890-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 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.