Recent prefix assignments

7 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, last 30 days — NPA 856

ONVOY, LLC - NJ 6

NEW CINGULAR WIRELESS PCS, LLC - DC 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
2020-08-18	856-436	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	HADDON HTS	NJ
2020-08-14	856-410	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HADDONFLD	NJ
2020-08-04	856-758	2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	CEDARVILLE	NJ
2020-06-16	856-501	0XXX1XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	THE VOICE APPLICATION NETWORK, LLC	507J	CAMDEN	NJ
2020-05-15	856-326	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NJ	637C	BRIDGETON	NJ
2020-04-09	856-746	0XXX2XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	HD CARRIER LLC	321J	MULLICA HL	NJ
2020-02-14	856-388	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	WILLIAMSTN	NJ
2020-02-14	856-977	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	MILLVILLE	NJ
2019-10-22	856-271	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HADDON HTS	NJ
2019-07-19	856-420	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - NJ	637C	WOODBURY	NJ
2019-03-18	856-403	0–9 XXXall 10 · 3 holders which blocks →	CSC WIRELESS, LLC	425J	CAMDEN	NJ
2019-03-13	856-508	0–9 XXXall 10 · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ	7134	PITMAN	NJ
2019-03-01	856-450	0–9 XXXall 10 · 5 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	BEAVER BRK	NJ
2019-02-13	856-399	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	ELMER	NJ
2019-02-08	856-766	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	CORETEL NEW JERSEY, INC. - NJ	482F	MULLICA HL	NJ
2019-01-25	856-529	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	BRIDGETON	NJ
2019-01-24	856-444	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	MOORESTOWN	NJ
2019-01-22	856-799	0–9 XXXall 10 · 3 holders which blocks →	HD CARRIER LLC	321J	CAMDEN	NJ
2019-01-11	856-395	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	CEDARVILLE	NJ
2018-10-04	856-360	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MOORESTOWN	NJ
2018-09-20	856-390	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	WOODSTOWN	NJ
2018-06-19	856-850	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CAMDEN	NJ
2017-12-28	856-301	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	VINELAND	NJ
2017-10-13	856-600	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	MOORESTOWN	NJ
2017-09-08	856-557	0–9 XXXwhole prefix which blocks →	BLOCK LINE SYSTEMS, LLC - NJ	835E	PITMAN	NJ
2017-05-08	856-922	0–9 XXXwhole prefix which blocks →	BLOCK LINE SYSTEMS, LLC - NJ	835E	MERCHANTVL	NJ
2017-03-09	856-443	0–9 XXXall 10 · 6 holders which blocks →	METROPCS, INC.	5562	WOODBURY	NJ
2016-12-05	856-250	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	CAMDEN	NJ
2016-10-05	856-846	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 8 holders which blocks →	WIDE VOICE, LLC - NJ	396H	BERLIN	NJ
2016-08-15	856-259	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	WILLIAMSTN	NJ
2016-06-13	856-394	0–9 XXXall 10 · 9 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MOORESTOWN	NJ
2016-02-01	856-502	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - NJ	637C	MILLVILLE	NJ
2016-01-29	856-212	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - NJ	637C	VINELAND	NJ
2016-01-29	856-272	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	WOODBURY	NJ
2015-12-15	856-886	0–9 XXXall 10 · 6 holders which blocks →	WIDE VOICE, LLC - NJ	396H	CAMDEN	NJ
2015-09-10	856-372	0–9 XXXall 10 · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NJ	7142	MOORESTOWN	NJ
2015-08-25	856-658	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	SWEDESBORO	NJ
2015-05-29	856-644	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - NJ	637C	CAMDEN	NJ
2015-03-23	856-800	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - NJ	637C	MULLICA HL	NJ
2015-03-23	856-900	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - NJ	637C	MOORESTOWN	NJ
2015-01-05	856-263	0–9 XXXall 10 · 3 holders which blocks →	CABLEVISION LIGHTPATH, INC. - NJ	4948	CAMDEN	NJ
2014-12-26	856-249	0–9 XXXall 10 · 5 holders which blocks →	INTRADO COMMUNICATIONS, LLC	829C	CAMDEN	NJ
2014-11-19	856-353	0–9 XXXall 10 · 4 holders which blocks →	AIRUS, INC. - NJ	066G	CAMDEN	NJ
2014-09-08	856-500	0–9 XXXall 10 · 5 holders which blocks →	BARR TELL USA, INC. - NJ	917G	VINELAND	NJ
2014-03-03	856-930	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CAMDEN	NJ
2013-11-25	856-549	0–9 XXXall 10 · 5 holders which blocks →	BUSINESS AUTOMATION TECHNOLOGIES, INC. - NJ	852B	CAMDEN	NJ
2013-10-21	856-804	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NJ	7142	PORTNORRIS	NJ
2013-03-26	856-440	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	MILLVILLE	NJ
2012-11-19	856-408	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	NUSO, LLC	551G	CAMDEN	NJ
2012-08-24	856-400	0XXX1XXX2XXX4XXX5XXX which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	PORTNORRIS	NJ

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.