Recent thousands-block assignments

36 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 346

ONVOY, LLC - TX 21

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 9

PAETEC ITEL, LLC 2

BANDWIDTH.COM CLEC, LLC - TX 2

TELNYX 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
2017-03-21	346-606-6XXX	6000–6999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BAMMEL	TX
2017-03-21	346-606-9XXX	9000–9999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BAMMEL	TX
2017-03-20	346-259-0XXX	0000–0999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2017-03-20	346-259-1XXX	1000–1999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2017-03-20	346-259-2XXX	2000–2999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2017-03-20	346-259-3XXX	3000–3999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2017-03-20	346-259-4XXX	4000–4999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2017-03-20	346-259-5XXX	5000–5999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2017-03-20	346-259-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2017-03-20	346-259-7XXX	7000–7999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2017-03-20	346-259-8XXX	8000–8999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2017-03-20	346-259-9XXX	9000–9999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2017-03-10	346-254-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CYPRESS	TX
2017-03-10	346-254-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CYPRESS	TX
2017-03-07	346-336-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TOMBALL	TX
2017-03-07	346-336-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TOMBALL	TX
2017-02-24	346-330-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	HOUSTON	TX
2017-02-14	346-774-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	HSTNSUBURB	TX
2017-02-07	346-413-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	SPRING	TX
2017-02-03	346-406-0XXX	0000–0999	Assigned	ONVOY, LLC - TX	903C	HOUSTON	TX
2017-02-03	346-787-5XXX	5000–5999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX	7239	LA PORTE	TX
2017-02-02	346-843-6XXX	6000–6999	Assigned	SOUTHWESTERN BELL	9533	RICHMNRNBG	TX
2017-01-31	346-323-3XXX	3000–3999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	HUMBLE	TX
2017-01-31	346-323-4XXX	4000–4999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	HUMBLE	TX
2017-01-31	346-323-5XXX	5000–5999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	HUMBLE	TX
2017-01-23	346-718-2XXX	2000–2999	Assigned	COMCAST IP PHONE, LLC	318J	HOUSTON	TX
2017-01-18	346-243-0XXX	0000–0999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BARKER	TX
2017-01-18	346-243-1XXX	1000–1999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BARKER	TX
2017-01-18	346-243-2XXX	2000–2999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BARKER	TX
2017-01-18	346-243-3XXX	3000–3999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BARKER	TX
2017-01-18	346-243-4XXX	4000–4999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BARKER	TX
2017-01-18	346-243-5XXX	5000–5999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BARKER	TX
2017-01-18	346-243-6XXX	6000–6999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BARKER	TX
2017-01-18	346-243-7XXX	7000–7999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BARKER	TX
2017-01-18	346-243-8XXX	8000–8999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BARKER	TX
2017-01-18	346-243-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	BARKER	TX
2017-01-18	346-244-0XXX	0000–0999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	SATSUMA	TX
2017-01-18	346-244-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	SATSUMA	TX
2017-01-18	346-245-0XXX	0000–0999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	STAFFORD	TX
2017-01-18	346-245-1XXX	1000–1999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	STAFFORD	TX
2017-01-18	346-245-2XXX	2000–2999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	STAFFORD	TX
2017-01-18	346-245-3XXX	3000–3999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	STAFFORD	TX
2017-01-18	346-245-4XXX	4000–4999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	STAFFORD	TX
2017-01-18	346-245-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	STAFFORD	TX
2017-01-17	346-288-0XXX	0000–0999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BEACH CITY	TX
2017-01-17	346-288-1XXX	1000–1999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BEACH CITY	TX
2017-01-17	346-288-2XXX	2000–2999	Assigned	AERIAL COMMUNICATIONS, INC.	6701	BEACH CITY	TX
2017-01-17	346-288-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	BEACH CITY	TX
2017-01-13	346-209-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - TX	004F	LIVERPOOL	TX
2017-01-13	346-757-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	STAFFORD	TX

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.