NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 810-505

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 810-505 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 810 blocks

Most active assignees, all time — NPA 810
6
PEERLESS NETWORK OF MICHIGAN, LLC - MI 2
TELEPORT COMMUNICATIONS AMERICA, LLC - MI 1
ONVOY, LLCV - MI 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
— 810-505-0XXX 0000–0999Available DECKERVL MI
— 810-505-1XXX 1000–1999Available DECKERVL MI
— 810-505-2XXX 2000–2999Available DECKERVL MI
— 810-505-3XXX 3000–3999Available DECKERVL MI
— 810-505-4XXX 4000–4999Available DECKERVL MI
2015-09-10 810-505-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C DECKERVL MI
— 810-505-6XXX 6000–6999Available DECKERVL MI
2025-01-27 810-505-7XXX 7000–7999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G DECKERVL MI
2020-09-29 810-505-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G DECKERVL MI
— 810-505-9XXX 9000–9999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E DECKERVL MI

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.