NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 484-987

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 484-987 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 484 blocks

Most active assignees, all time — NPA 484
D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 4
COMCAST IP PHONE, LLC 2
WINDSTREAM D & E SYSTEMS, INC. - PA 1
NUSO, LLC 1
NEW CINGULAR WIRELESS PCS, LLC - DC 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
2015-06-18 484-987-0XXX 0000–0999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 READING PA
2015-06-18 484-987-1XXX 1000–1999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 READING PA
2015-06-01 484-987-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J READING PA
2015-08-12 484-987-3XXX 3000–3999Assigned WINDSTREAM D & E SYSTEMS, INC. - PA 4114 READING PA
2015-09-30 484-987-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 READING PA
2015-12-07 484-987-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 READING PA
2016-08-24 484-987-6XXX 6000–6999Assigned NUSO, LLC 551G READING PA
2015-11-05 484-987-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J READING PA
2015-08-05 484-987-8XXX 8000–8999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 READING PA
2015-08-05 484-987-9XXX 9000–9999Assigned D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 READING PA

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.