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

DUMONT prefixes in area code 201

NANPA records 12 assigned NXX blocks to rate center DUMONT in area code 201, 1.5% of the 779 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 VERIZON NEW JERSEY, INC. (6), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2), AQUIS COMMUNICATIONS, INC. (1). The earliest assignment on record here is 2010-09-13 and the most recent 2024-05-15. 7 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 551, 641 – overlay codes cover the same geography, so a rate center is served by all of them.

12 assigned blocks – 1.5% of 201
6 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
201-244 Verizon VERIZON NEW JERSEY, INC. – yes yes
201-278 AQUIS COMMUNICATIONS, INC. – no yes
201-338 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - NJ – yes yes
201-374 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
201-384 Verizon VERIZON NEW JERSEY, INC. – no yes
201-385 Verizon VERIZON NEW JERSEY, INC. – no yes
201-387 Verizon VERIZON NEW JERSEY, INC. – no yes
201-439 Verizon VERIZON NEW JERSEY, INC. – yes yes
201-501 Verizon VERIZON NEW JERSEY, INC. – no yes
201-648 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
201-771 Windstream PAETEC ITEL, LLC 2010-09-13 yes yes
201-979 Onvoy ONVOY, LLC - NJ 2024-05-15 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
VERIZON NEW JERSEY, INC. Verizon 6 50%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 2 16.7%
AQUIS COMMUNICATIONS, INC. – 1 8.3%
TELEPORT COMMUNICATIONS AMERICA, LLC - NJ AT&T 1 8.3%
PAETEC ITEL, LLC Windstream 1 8.3%
ONVOY, LLC - NJ Onvoy 1 8.3%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to DUMONT in area code 201?

12 blocks: 244, 278, 338, 374, 384, 385, 387, 439, 501, 648, 771, 979. The table above gives the holder of each.

Which carriers have numbers in DUMONT?

VERIZON NEW JERSEY, INC. (6 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2 blocks), AQUIS COMMUNICATIONS, INC. (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - NJ (1 block), PAETEC ITEL, LLC (1 block), ONVOY, 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 DUMONT 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 201

All 779 prefixes in 201