Thousands-blocks in 812-577

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 812-577 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 812 blocks

Most active assignees, all time — NPA 812

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 5

ONVOY, LLC - IN 2

COMCAST IP PHONE, LLC 2

HD CARRIER 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

Recent thousands-block assignments
Assigned	Thousands-block	Last 4 digits	Status	Assignee	OCN	Rate center	State
2006-07-24	812-577-0XXX	0000–0999	Assigned	COMCAST IP PHONE, LLC	318J	LAWRENCEBG	IN
2018-06-29	812-577-1XXX	1000–1999	Assigned	HD CARRIER LLC	321J	LAWRENCEBG	IN
2011-07-07	812-577-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	LAWRENCEBG	IN
2011-09-01	812-577-3XXX	3000–3999	Assigned	COMCAST IP PHONE, LLC	318J	LAWRENCEBG	IN
2013-09-04	812-577-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	LAWRENCEBG	IN
2008-05-09	812-577-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	LAWRENCEBG	IN
2010-03-04	812-577-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	LAWRENCEBG	IN
2008-04-08	812-577-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	LAWRENCEBG	IN
2016-02-09	812-577-8XXX	8000–8999	Assigned	ONVOY, LLC - IN	097D	LAWRENCEBG	IN
2016-02-09	812-577-9XXX	9000–9999	Assigned	ONVOY, LLC - IN	097D	LAWRENCEBG	IN

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.