Thousands-blocks in 360-517

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 360-517 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

COMCAST IP PHONE, LLC 4

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 4

TELNYX LLC 1

ONVOY, LLC - 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

Recent thousands-block assignments
Assigned	Thousands-block	Last 4 digits	Status	Assignee	OCN	Rate center	State
2018-03-23	360-517-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SILVERDALE	WA
2021-05-28	360-517-1XXX	1000–1999	Assigned	ONVOY, LLC - WA	483E	SILVERDALE	WA
2020-07-09	360-517-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	SILVERDALE	WA
2019-04-29	360-517-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SILVERDALE	WA
2020-07-09	360-517-4XXX	4000–4999	Assigned	COMCAST IP PHONE, LLC	318J	SILVERDALE	WA
2018-10-16	360-517-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SILVERDALE	WA
2020-07-09	360-517-6XXX	6000–6999	Assigned	COMCAST IP PHONE, LLC	318J	SILVERDALE	WA
2020-11-12	360-517-7XXX	7000–7999	Assigned	TELNYX LLC	073H	SILVERDALE	WA
2020-07-09	360-517-8XXX	8000–8999	Assigned	COMCAST IP PHONE, LLC	318J	SILVERDALE	WA
2024-06-07	360-517-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SILVERDALE	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.