Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 906

OPENTACT 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
2016-06-17	906-390-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ONTONAGON	MI
2016-06-09	906-464-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ISHPEMING	MI
2016-05-13	906-542-5XXX	5000–5999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	CHANNING	MI
2016-05-13	906-675-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	IRONWOOD	MI
2016-04-29	906-214-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	IRON RIVER	MI
2016-04-21	906-287-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	ENGADINE	MI
2015-12-02	906-828-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	IRON MT	MI
2015-11-12	906-232-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	MARQUETTE	MI
2015-11-11	906-448-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	IRON MT	MI
2015-11-11	906-448-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	IRON MT	MI
2015-09-30	906-286-8XXX	8000–8999	Assigned	UPPER PENINSULA TELEPHONE COMPANY - MI	746G	MANISTIQUE	MI
2015-09-30	906-448-1XXX	1000–1999	Assigned	UPPER PENINSULA TELEPHONE COMPANY - MI	746G	IRON MT	MI
2015-09-30	906-825-9XXX	9000–9999	Assigned	UPPER PENINSULA TELEPHONE COMPANY - MI	746G	GLADSTONE	MI
2015-09-30	906-914-2XXX	2000–2999	Assigned	UPPER PENINSULA TELEPHONE COMPANY - MI	746G	MENOMINEE	MI
2015-09-10	906-264-6XXX	6000–6999	Assigned	UPPER PENINSULA TELEPHONE COMPANY - MI	746G	MARQUETTE	MI
2015-08-07	906-239-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	IRON MT	MI
2015-07-24	906-212-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	ESCANABA	MI
2015-06-23	906-258-0XXX	0000–0999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MARQUETTE	MI
2015-06-23	906-258-1XXX	1000–1999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MARQUETTE	MI
2015-06-23	906-258-2XXX	2000–2999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MARQUETTE	MI
2015-06-23	906-258-3XXX	3000–3999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MARQUETTE	MI
2015-06-23	906-258-4XXX	4000–4999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MARQUETTE	MI
2015-06-23	906-258-5XXX	5000–5999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MARQUETTE	MI
2015-06-23	906-258-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MARQUETTE	MI
2015-06-23	906-258-7XXX	7000–7999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MARQUETTE	MI
2015-06-23	906-258-8XXX	8000–8999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MARQUETTE	MI
2015-06-23	906-258-9XXX	9000–9999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MARQUETTE	MI
2015-06-11	906-829-0XXX	0000–0999	Assigned	ONVOY, LLCV - MI	543C	MARQUETTE	MI
2015-06-10	906-847-2XXX	2000–2999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	MACKINACIS	MI
2015-06-09	906-373-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BIG BAY	MI
2015-04-15	906-847-4XXX	4000–4999	Assigned	AT&T ENTERPRISES, LLC	516C	MACKINACIS	MI
2014-10-06	906-379-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SALTSTMARI	MI
2014-10-06	906-379-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SALTSTMARI	MI
2014-09-30	906-275-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOUGHTON	MI
2014-09-30	906-275-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOUGHTON	MI
2014-09-23	906-398-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	ESCANABA	MI
2014-08-21	906-368-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	POWERS	MI
2014-08-13	906-984-0XXX	0000–0999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	ST IGNACE	MI
2014-08-07	906-290-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	MENOMINEE	MI
2014-08-06	906-239-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	IRON MT	MI
2014-07-29	906-204-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ISHPEMING	MI
2014-07-14	906-371-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CHAMPION	MI
2014-04-17	906-451-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	MARQUETTE	MI
2014-04-17	906-563-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	NORWAY	MI
2014-02-24	906-214-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	IRON RIVER	MI
2013-12-11	906-345-2XXX	2000–2999	Assigned	AT&T ENTERPRISES, LLC	516C	BIG BAY	MI
2013-12-11	906-569-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	TROUT LAKE	MI
2013-10-10	906-242-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	NEGAUNEE	MI
2013-10-10	906-970-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	NORWAY	MI
2013-10-08	906-474-4XXX	4000–4999	Assigned	PENINSULA FIBER NETWORK, LLC - MI	116F	RAPIDRIVER	MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.