Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days — NPA 612

8X8, 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 NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2017-06-20	612-274	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2017-05-10	612-268	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	TWINCITIES	MN
2017-04-27	612-263	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2017-03-16	612-357	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2017-01-19	612-322	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-12-29	612-297	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-12-15	612-540	0–9 XXXall 10 · 5 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TWINCITIES	MN
2016-11-02	612-513	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2016-10-14	612-509	0–9 XXXall 10 · 2 holders which blocks →	PEERLESS NETWORK OF MINNESOTA, LLC - MN	107F	TWINCITIES	MN
2016-10-03	612-295	0–9 XXXall 10 · 3 holders which blocks →	PEERLESS NETWORK OF MINNESOTA, LLC - MN	107F	TWINCITIES	MN
2016-09-30	612-261	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	TWINCITIES	MN
2016-09-19	612-505	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-09-19	612-517	0–9 XXXall 10 · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TWINCITIES	MN
2016-09-12	612-601	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	TWINCITIES	MN
2016-08-17	612-258	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-08-04	612-434	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-07-19	612-757	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2016-06-23	612-772	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-06-15	612-512	0–9 XXXall 10 · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TWINCITIES	MN
2016-02-08	612-426	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	TWINCITIES	MN
2016-02-03	612-289	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-02-02	612-249	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - MN	184D	TWINCITIES	MN
2016-01-06	612-469	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2015-12-29	612-475	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	TWINCITIES	MN
2015-10-06	612-478	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2015-10-06	612-479	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2015-09-22	612-458	0–9 XXXall 10 · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TWINCITIES	MN
2015-09-09	612-442	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	TWINCITIES	MN
2015-08-17	612-257	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2015-05-07	612-443	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2015-04-29	612-425	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2015-04-20	612-504	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	TWINCITIES	MN
2015-04-14	612-503	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2015-03-19	612-500	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - MN	184D	TWINCITIES	MN
2014-11-20	612-440	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	TWINCITIES	MN
2014-11-18	612-413	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2014-11-18	612-417	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2014-11-12	612-430	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2014-09-18	612-400	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2014-09-10	612-407	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	TWINCITIES	MN
2014-09-02	612-406	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TWINCITIES	MN
2014-08-25	612-470	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	TWINCITIES	MN
2014-06-06	612-405	0–9 XXXall 10 · 2 holders which blocks →	NUSO, LLC	551G	TWINCITIES	MN
2014-05-22	612-361	0–9 XXXall 10 · 2 holders which blocks →	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM	4139	TWINCITIES	MN
2014-05-08	612-815	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	TWINCITIES	MN
2014-04-22	612-930	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2014-03-17	612-404	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TWINCITIES	MN
2013-12-13	612-900	0–9 XXXall 10 · 3 holders which blocks →	TEKSTAR COMMUNICATIONS, INC.	4156	TWINCITIES	MN
2013-12-12	612-814	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - MN	184D	TWINCITIES	MN
2013-12-05	612-800	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF MINNESOTA, LLC - MN	107F	TWINCITIES	MN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.