Recent thousands-block assignments

70 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 667

NEW CINGULAR WIRELESS PCS, LLC - DC 38

ONVOY, LLC - MD 18

BANDWIDTH.COM CLEC, LLC - MD 6

METROPCS, INC. 2

INTRADO COMMUNICATIONS, LLC 2

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
2013-03-13	667-303-1XXX	1000–1999	Assigned	NUSO, LLC	551G	BALTIMORE	MD
2013-02-18	667-401-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	BALTIMORE	MD
2013-01-03	667-401-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	BALTIMORE	MD
2013-01-03	667-401-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	BALTIMORE	MD
2013-01-03	667-401-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	BALTIMORE	MD
2013-01-03	667-401-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	BALTIMORE	MD
2012-12-06	667-205-1XXX	1000–1999	Assigned	COMCAST IP PHONE, LLC	318J	BALTIMORE	MD
2012-11-29	667-205-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - MD	071F	BALTIMORE	MD
2012-11-26	667-308-8XXX	8000–8999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	TOWSON	MD
2012-11-26	667-401-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2012-11-26	667-401-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2012-09-21	667-209-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-09-21	667-209-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-09-21	667-209-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-09-21	667-209-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-09-21	667-209-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-09-21	667-210-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-09-21	667-210-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-09-21	667-210-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-09-21	667-210-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-09-21	667-210-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-09-21	667-210-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-05-24	667-330-1XXX	1000–1999	Assigned	PAETEC ITEL, LLC	829J	SALISBURY	MD
2012-03-26	667-210-5XXX	5000–5999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MD	7325	BALTIMORE	MD
2012-02-09	667-203-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-203-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-203-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-203-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-203-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-203-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-203-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-203-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-203-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-203-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-205-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-207-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-208-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-209-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-209-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-209-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-209-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-209-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-210-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-210-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-212-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-213-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-214-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-216-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-217-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD
2012-02-09	667-218-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	BALTIMORE	MD

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.