Thousands-blocks in 580-312

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 580-312 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 580 blocks

Most active assignees, all time — NPA 580

PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC. 6

T-MOBILE USA, INC. 1

METROPCS, INC. 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
—	580-312-0XXX	0000–0999	Available			BROKEN BOW	OK
2025-03-27	580-312-1XXX	1000–1999	Assigned	METROPCS, INC.	5562	BROKEN BOW	OK
2025-03-21	580-312-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	BROKEN BOW	OK
—	580-312-3XXX	3000–3999	Available			BROKEN BOW	OK
2015-12-11	580-312-4XXX	4000–4999	Assigned	PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC.	235C	BROKEN BOW	OK
2015-12-11	580-312-5XXX	5000–5999	Assigned	PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC.	235C	BROKEN BOW	OK
2012-09-28	580-312-6XXX	6000–6999	Assigned	PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC.	235C	BROKEN BOW	OK
2012-09-28	580-312-7XXX	7000–7999	Assigned	PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC.	235C	BROKEN BOW	OK
2010-06-22	580-312-8XXX	8000–8999	Assigned	PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC.	235C	BROKEN BOW	OK
2015-01-16	580-312-9XXX	9000–9999	Assigned	PINE TELEPHONE COMPANY DBA PINE CELL PHONES, INC.	235C	BROKEN BOW	OK

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.