NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 509-980

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026

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

The ten 1,000-number thousand-blocks inside prefix 509-980 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 509 blocks

Most active assignees, all time — NPA 509
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 3
T-MOBILE USA, INC. 2
2
ONVOY, LLC - WA 1
NEW CINGULAR WIRELESS PCS, 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
— 509-980-0XXX 0000–0999Reserved LEVEL 3 COMMUNICATIONS, LLC - WA 6121 CONNELL WA
2013-10-29 509-980-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CONNELL WA
2020-04-01 509-980-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CONNELL WA
— 509-980-3XXX 3000–3999Available CONNELL WA
2023-01-13 509-980-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CONNELL WA
— 509-980-5XXX 5000–5999Available CONNELL WA
2024-11-26 509-980-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CONNELL WA
2008-08-08 509-980-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E CONNELL WA
2024-07-30 509-980-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CONNELL WA
2021-01-30 509-980-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CONNELL WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.