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

DARIEN prefixes in area code 262

NANPA records 3 assigned NXX blocks to rate center DARIEN in area code 262, 0.5% of the 634 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. 3 holders hold those blocks, the largest being FRONTIER NORTH INC. - WI (1), TELEPORT COMMUNICATIONS AMERICA, LLC WI (1), SHARON TELEPHONE COMPANY (1). 2 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 203, 475, 585, 912 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.5% of 262
3 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
262-724 Frontier FRONTIER NORTH INC. - WI – yes yes
262-726 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC WI – yes yes
262-882 SHARON TELEPHONE COMPANY – no 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
FRONTIER NORTH INC. - WI Frontier 1 33.3%
TELEPORT COMMUNICATIONS AMERICA, LLC WI AT&T 1 33.3%
SHARON TELEPHONE COMPANY – 1 33.3%

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 DARIEN in area code 262?

3 blocks: 724, 726, 882. The table above gives the holder of each.

Which carriers have numbers in DARIEN?

FRONTIER NORTH INC. - WI (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC WI (1 block), SHARON TELEPHONE COMPANY (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is DARIEN 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 262

All 634 prefixes in 262