Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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, all time — NPA 276

UNITED TELEPHONE-SOUTHEAST-VA DBA CENTURYLINK-VA 46

ONVOY, LLC - VA 33

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 29

VERIZON VIRGINIA, INC. 27

NEW CINGULAR WIRELESS PCS, LLC - GA 23

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
2019-05-15	276-240	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - VA	138E	BLUEFIELD	VA
2019-05-15	276-282	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - VA	138E	RICHLANDS	VA
2019-05-15	276-295	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - VA	138E	PENINGTNGP	VA
2019-05-15	276-330	0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks →	ONVOY, LLC - VA	138E	BIG PRATER	VA
2019-05-10	276-208	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - VA	138E	LAURELFORK	VA
2019-03-08	276-333	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	CLINTWOOD	VA
2019-03-08	276-529	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	DANTE	VA
2019-03-08	276-999	0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	APPALACHIA	VA
2019-02-19	276-242	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	GRUNDY	VA
2019-01-24	276-300	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - VA	138E	ABINGDON	VA
2019-01-17	276-888	0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TERRA NOVA TELECOM INC.	145J	ST CHARLES	VA
2018-08-22	276-286	0XXX1XXX2XXX3XXX6XXX7XXX8XXX which blocks →	ONVOY, LLC - VA	138E	OAKWOOD	VA
2018-05-18	276-400	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - VA	138E	CMSRKELCRK	VA
2018-05-18	276-444	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - VA	138E	SYLVATUS	VA
2018-05-18	276-500	0XXX1XXX5XXX6XXX7XXX8XXX9XXX which blocks →	ONVOY, LLC - VA	138E	CRIPPLECRK	VA
2018-05-18	276-600	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - VA	138E	DAMASCUS	VA
2018-05-18	276-800	0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - VA	138E	FRIES	VA
2018-05-18	276-900	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - VA	138E	GLADE SPG	VA
2018-03-05	276-277	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - VA	138E	WYTHEVILLE	VA
2017-07-26	276-265	0–9 XXXall 10 · 6 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - VA	4644	JONESVILLE	VA
2017-02-24	276-777	0–9 XXXall 10 · 7 holders which blocks →	TELNYX LLC	073H	COEBURN	VA
2016-08-09	276-212	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - VA	4644	BIGSTONEGP	VA
2015-03-13	276-409	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	POUND	VA
2014-11-04	276-533	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	WISE	VA
2013-03-21	276-296	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA	7299	INDEPNDNCE	VA
2013-03-07	276-598	0XXX1XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	RICHLANDS	VA
2013-02-22	276-329	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	TAZEWELL	VA
2013-02-22	276-437	0–9 XXXall 10 · 6 holders which blocks →	MOUNTAINET TELEPHONE COMPANY - VA	3185	NORTON	VA
2013-02-11	276-832	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	JONESVILLE	VA
2013-02-08	276-754	0XXX1XXX4XXX · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	CANA	VA
2012-12-10	276-449	4XXX7XXX9XXX · 3 holders which blocks →	SUNSET FIBER - VA	9809	DUFFIELD	VA
2012-10-25	276-582	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	HONAKER	VA
2012-08-24	276-209	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	BLAND	VA
2012-06-13	276-302	0–9 XXXall 10 · 8 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	CLINTWOOD	VA
2012-04-03	276-323	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	APPALACHIA	VA
2012-02-06	276-292	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	RIDGEWAY	VA
2012-02-06	276-421	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	BASSETT	VA
2012-02-06	276-833	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	AXTON	VA
2012-01-18	276-293	0–9 XXXall 10 · 7 holders which blocks →	MGW NETWORKS, L.L.C. - VA	609F	GALAX	VA
2012-01-04	276-312	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA	6827	GRUNDY	VA
2011-12-13	276-288	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - VA	8825	WOOLWINE	VA
2011-09-15	276-455	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA	6827	COEBURN	VA
2011-07-22	276-447	0–9 XXXall 10 · 4 holders which blocks →	MOUNTAINET TELEPHONE COMPANY - VA	3185	MORRISONCY	VA
2011-02-07	276-258	0–9 XXXall 10 · 6 holders which blocks →	UNITED TELEPHONE-SOUTHEAST-VA DBA CENTURYLINK-VA	4511	ABINGDON	VA
2010-09-29	276-254	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	LEBANON	VA
2010-09-29	276-439	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	NORTON	VA
2010-09-28	276-528	0XXX1XXX2XXX3XXX5XXX8XXX · 4 holders which blocks →	MIKROTEC OF VIRGINIA, LLC - VA	210F	HURLEY	VA
2010-09-15	276-433	0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 7 holders which blocks →	SHENTEL COMMUNICATIONS, LLC. - VA	4979	RICHLANDS	VA
2010-09-08	276-335	0XXX1XXX2XXX8XXX9XXX · 3 holders which blocks →	SHENTEL COMMUNICATIONS, LLC. - VA	4979	WYTHEVILLE	VA
2010-05-28	276-207	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	NORTON	VA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.