Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 410

ONVOY, LLC - MD 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
2018-04-30	410-304-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	QUEENSTOWN	MD
2018-03-28	410-213-4XXX	4000–4999	Assigned	COMCAST IP PHONE, LLC	318J	OCEAN CITY	MD
2018-03-07	410-568-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	COCKEYSVL	MD
2018-03-07	410-568-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	COCKEYSVL	MD
2018-02-09	410-973-4XXX	4000–4999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	BERLIN	MD
2018-02-06	410-604-4XXX	4000–4999	Assigned	PEERLESS NETWORK OF MARYLAND, LLC	568G	STEVENSVL	MD
2017-12-28	410-395-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	ARBUTUS	MD
2017-11-16	410-476-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	TRAPPE	MD
2017-11-01	410-237-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	BALTIMORE	MD
2017-11-01	410-237-8XXX	8000–8999	Assigned	ONVOY, LLC - MD	876D	BALTIMORE	MD
2017-10-17	410-291-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MD	6119	BALTIMORE	MD
2017-10-16	410-334-8XXX	8000–8999	Assigned	NUSO, LLC	551G	SALISBURY	MD
2017-10-16	410-334-9XXX	9000–9999	Assigned	NUSO, LLC	551G	SALISBURY	MD
2017-09-28	410-413-8XXX	8000–8999	Assigned	VDL, INC. DBA GLOBAL TELECOM BROKERS - MD	4492	PIKESVILLE	MD
2017-08-31	410-226-8XXX	8000–8999	Assigned	TELNYX LLC	073H	OXFORD	MD
2017-08-31	410-275-3XXX	3000–3999	Assigned	TELNYX LLC	073H	CECILTON	MD
2017-08-31	410-304-0XXX	0000–0999	Assigned	TELNYX LLC	073H	QUEENSTOWN	MD
2017-08-31	410-348-8XXX	8000–8999	Assigned	TELNYX LLC	073H	STILL POND	MD
2017-08-31	410-364-8XXX	8000–8999	Assigned	TELNYX LLC	073H	HILLSBORO	MD
2017-08-31	410-397-1XXX	1000–1999	Assigned	TELNYX LLC	073H	WINGATE	MD
2017-08-31	410-425-1XXX	1000–1999	Assigned	TELNYX LLC	073H	SMITH IS	MD
2017-08-31	410-438-1XXX	1000–1999	Assigned	TELNYX LLC	073H	SUDLERSVL	MD
2017-08-31	410-556-8XXX	8000–8999	Assigned	TELNYX LLC	073H	CHURCHHILL	MD
2017-08-31	410-600-8XXX	8000–8999	Assigned	TELNYX LLC	073H	BERLIN	MD
2017-08-31	410-604-9XXX	9000–9999	Assigned	TELNYX LLC	073H	STEVENSVL	MD
2017-08-31	410-623-5XXX	5000–5999	Assigned	TELNYX LLC	073H	MARION	MD
2017-08-31	410-632-8XXX	8000–8999	Assigned	TELNYX LLC	073H	SNOW HILL	MD
2017-08-31	410-634-6XXX	6000–6999	Assigned	TELNYX LLC	073H	RIDGELY	MD
2017-08-31	410-639-8XXX	8000–8999	Assigned	TELNYX LLC	073H	ROCK HALL	MD
2017-08-31	410-673-3XXX	3000–3999	Assigned	TELNYX LLC	073H	PRESTON	MD
2017-08-31	410-755-8XXX	8000–8999	Assigned	TELNYX LLC	073H	WARWICK	MD
2017-08-31	410-784-8XXX	8000–8999	Assigned	TELNYX LLC	073H	DEALISLAND	MD
2017-08-31	410-873-8XXX	8000–8999	Assigned	TELNYX LLC	073H	NANTICOKE	MD
2017-08-31	410-883-1XXX	1000–1999	Assigned	TELNYX LLC	073H	SHARPTOWN	MD
2017-08-31	410-886-8XXX	8000–8999	Assigned	TELNYX LLC	073H	TILGHMAN	MD
2017-08-31	410-968-5XXX	5000–5999	Assigned	TELNYX LLC	073H	CRISFIELD	MD
2017-08-03	410-291-6XXX	6000–6999	Assigned	PAETEC ITEL, LLC	829J	BALTIMORE	MD
2017-07-10	410-291-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	BALTIMORE	MD
2017-07-05	410-639-5XXX	5000–5999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD	7228	ROCK HALL	MD
2017-06-16	410-642-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	PERRYVILLE	MD
2017-06-13	410-214-2XXX	2000–2999	Assigned	ARMSTRONG TELECOMMUNICATIONS, INC. - MD	420C	RISING SUN	MD
2017-06-02	410-600-4XXX	4000–4999	Assigned	MCC TELEPHONY OF THE MID-ATLANTIC, LLC - MD	861F	BERLIN	MD
2017-05-22	410-237-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	BALTIMORE	MD
2017-05-22	410-406-6XXX	6000–6999	Assigned	ONVOY, LLC - MD	876D	ESSEX	MD
2017-05-22	410-413-7XXX	7000–7999	Assigned	ONVOY, LLC - MD	876D	PIKESVILLE	MD
2017-05-08	410-291-1XXX	1000–1999	Assigned	NUSO, LLC	551G	BALTIMORE	MD
2017-05-08	410-291-8XXX	8000–8999	Assigned	NUSO, LLC	551G	BALTIMORE	MD
2017-04-28	410-918-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ESSEX	MD
2017-04-28	410-918-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ESSEX	MD
2017-04-14	410-429-8XXX	8000–8999	Assigned	TELNYX LLC	073H	WORTHINGTN	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.