Recent prefix assignments

2 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 218

8X8, INC. 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 NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2018-06-15	218-337	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	VONAGE AMERICA LLC	197D	DULUTH	MN
2018-04-26	218-420	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	HAWLEY	MN
2017-11-13	218-653	1XXX which blocks →	GARDEN VALLEY TELEPHONE COMPANY - MN	105J	THIFRIVFLS	MN
2017-10-19	218-292	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - MN	184D	BEAR RIVER	MN
2017-08-31	218-241	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	DULUTH	MN
2017-06-20	218-250	0–9 XXXall 10 · 3 holders which blocks →	MIDCONTINENT COMMUNICATIONS - MN	429A	LITTLEFORK	MN
2017-03-01	218-520	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - MN	184D	DULUTH	MN
2016-06-28	218-501	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - MN	184D	ALBORN	MN
2016-06-28	218-516	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - MN	184D	BIWABIK	MN
2016-02-17	218-505	0XXX1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - MN	184D	COMSTOCK	MN
2015-12-22	218-510	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	TWOHARBORS	MN
2015-12-18	218-629	not yet reported which blocks →	WEST CENTRAL TELEPHONE ASSOCIATION - MN	179E	WADENA	MN
2015-09-24	218-221	0–9 XXXall 10 · 3 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	DULUTH	MN
2015-08-28	218-504	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ELY	MN
2015-05-20	218-503	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	BARNUM	MN
2015-04-22	218-888	0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	ONVOY, LLC - MN	184D	BEMIDJI	MN
2014-12-23	218-228	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - MN	184D	SABIN	MN
2014-10-15	218-300	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - MN	184D	TOWER	MN
2014-10-15	218-502	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - MN	184D	RANIER	MN
2014-03-21	218-217	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - MN	184D	BRIMSON	MN
2014-03-21	218-307	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - MN	184D	EMBARRASS	MN
2014-03-21	218-318	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - MN	184D	PALO	MN
2014-03-21	218-413	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - MN	184D	BABBITT	MN
2013-11-27	218-216	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - MN	184D	DULUTH	MN
2013-11-27	218-606	0–9 XXXall 10 · 5 holders which blocks →	QWEST CORPORATION	9631	DULUTH	MN
2013-01-15	218-214	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	BEMIDJI	MN
2012-08-14	218-877	0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - MN	184D	GRANDMRAIS	MN
2012-05-18	218-460	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	MOOSE LAKE	MN
2012-05-02	218-215	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	NASHWAUK	MN
2012-04-18	218-203	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - MN	8405	BRAINERD	MN
2011-11-09	218-210	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	BEMIDJI	MN
2011-09-21	218-350	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINVALLEY	MN
2011-03-17	218-774	0XXX1XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	WIKSTROM TELEPHONE COMPANY, INC. - MN	914F	KENNEDY	MN
2011-03-07	218-450	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	WIKSTROM TELEPHONE COMPANY, INC. - MN	914F	ROSEAU	MN
2011-03-07	218-635	0XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	WIKSTROM TELEPHONE COMPANY, INC. - MN	914F	BAUDETTE	MN
2011-03-07	218-853	5XXX7XXX · 2 holders which blocks →	WIKSTROM TELEPHONE COMPANY, INC. - MN	914F	HALLOCK	MN
2011-03-07	218-960	0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	WIKSTROM TELEPHONE COMPANY, INC. - MN	914F	ALVARADO	MN
2011-03-07	218-986	0XXX1XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	WIKSTROM TELEPHONE COMPANY, INC. - MN	914F	WARROAD	MN
2011-02-19	218-576	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	551G	DULUTH	MN
2011-02-17	218-600	0XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - MN	184D	DULUTH	MN
2010-11-10	218-200	0XXX2XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MENTOR	MN
2010-11-10	218-400	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WARREN	MN
2010-08-26	218-633	0XXX3XXX4XXX7XXX8XXX · 2 holders which blocks →	WIKSTROM TELEPHONE COMPANY, INC. - MN	914F	THIFRIVFLS	MN
2010-08-17	218-408	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WADENA	MN
2010-08-17	218-513	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BRAINERD	MN
2010-08-17	218-560	1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FERGUS FLS	MN
2010-08-03	218-515	0–9 XXXall 10 · 5 holders which blocks →	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM	7770	BRAINERD	MN
2010-07-27	218-598	0XXX4XXX5XXX8XXX9XXX · 4 holders which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	INTETNLFLS	MN
2010-06-16	218-489	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	MCC TELEPHONY LLC	593K	BUHL	MN
2010-05-03	218-438	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	WIKSTROM TELEPHONE COMPANY, INC. - MN	914F	ARGYLE	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.