NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 504-994

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 504-994 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 504 blocks

Most active assignees, all time — NPA 504
VOICESTREAM GSM I, LLC 10
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
— 504-994-0XXX 0000–0999Reserved VOICESTREAM GSM I, LLC 150C KENNER LA
— 504-994-1XXX 1000–1999Reserved VOICESTREAM GSM I, LLC 150C KENNER LA
— 504-994-2XXX 2000–2999Reserved VOICESTREAM GSM I, LLC 150C KENNER LA
— 504-994-3XXX 3000–3999Reserved VOICESTREAM GSM I, LLC 150C KENNER LA
— 504-994-4XXX 4000–4999Reserved VOICESTREAM GSM I, LLC 150C KENNER LA
— 504-994-5XXX 5000–5999Reserved VOICESTREAM GSM I, LLC 150C KENNER LA
— 504-994-6XXX 6000–6999Reserved VOICESTREAM GSM I, LLC 150C KENNER LA
— 504-994-7XXX 7000–7999Reserved VOICESTREAM GSM I, LLC 150C KENNER LA
— 504-994-8XXX 8000–8999Reserved VOICESTREAM GSM I, LLC 150C KENNER LA
— 504-994-9XXX 9000–9999Reserved VOICESTREAM GSM I, LLC 150C KENNER LA

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.