Thousands-blocks in 227-281

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 227-281 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 227 blocks

Most active assignees, last 30 days — NPA 227

INTRADO COMMUNICATIONS, 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
2025-05-27	227-281-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FREDERICK	MD
2025-05-27	227-281-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FREDERICK	MD
2026-02-03	227-281-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FREDERICK	MD
2025-07-25	227-281-3XXX	3000–3999	Assigned	NUSO, LLC	732J	FREDERICK	MD
2026-02-03	227-281-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	FREDERICK	MD
2026-09-16	227-281-5XXX	5000–5999	Assigned	INTRADO COMMUNICATIONS, LLC	820C	FREDERICK	MD
2025-12-11	227-281-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	FREDERICK	MD
2025-09-18	227-281-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	FREDERICK	MD
2025-06-26	227-281-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	FREDERICK	MD
2025-06-26	227-281-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	FREDERICK	MD

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.