NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

PORTNORRIS prefixes in area code 856

NANPA records 6 assigned NXX blocks to rate center PORTNORRIS in area code 856, 0.9% of the 676 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 6 holders hold those blocks, the largest being PEERLESS NETWORK OF NEW JERSEY, LLC - NJ (1), ONVOY, LLC - NJ (1), COMMIO, LLC (1). The earliest assignment on record here is 2001-10-04 and the most recent 2023-08-31. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

6 assigned blocks – 0.9% of 856
6 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
856-400 Peerless PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 2012-08-24 yes yes
856-421 Onvoy ONVOY, LLC - NJ – yes yes
856-578 COMMIO, LLC 2023-08-31 yes yes
856-683 Windstream PAETEC ITEL, LLC 2001-10-04 yes yes
856-785 Verizon VERIZON NEW JERSEY, INC. – yes yes
856-804 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 2013-10-21 yes yes

The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.

Who holds the blocks

HolderBrandBlocksShare here
PEERLESS NETWORK OF NEW JERSEY, LLC - NJ Peerless 1 16.7%
ONVOY, LLC - NJ Onvoy 1 16.7%
COMMIO, LLC – 1 16.7%
PAETEC ITEL, LLC Windstream 1 16.7%
VERIZON NEW JERSEY, INC. Verizon 1 16.7%
TELEPORT COMMUNICATIONS AMERICA, LLC - NJ AT&T 1 16.7%

Frequently asked

Which prefixes belong to PORTNORRIS in area code 856?

6 blocks: 400, 421, 578, 683, 785, 804. The table above gives the holder of each.

Which carriers have numbers in PORTNORRIS?

PEERLESS NETWORK OF NEW JERSEY, LLC - NJ (1 block), ONVOY, LLC - NJ (1 block), COMMIO, LLC (1 block), PAETEC ITEL, LLC (1 block), VERIZON NEW JERSEY, INC. (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - NJ (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PORTNORRIS a city?

It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.

Other rate centers in 856

All 676 prefixes in 856