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

LODI prefixes in area code 608

NANPA records 3 assigned NXX blocks to rate center LODI in area code 608, 0.4% of the 785 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 TELEPORT COMMUNICATIONS AMERICA, LLC WI (1), FRONTIER NORTH INC. - WI (1), TON80 COMMUNICATIONS, LLC (1). The earliest assignment on record here is 2016-01-25 and the most recent 2022-03-03. 3 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 209, 234, 330, 350 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.4% of 608
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
608-591 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC WI 2016-01-25 yes yes
608-592 Frontier FRONTIER NORTH INC. - WI – yes yes
608-869 TON80 COMMUNICATIONS, LLC 2022-03-03 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
TELEPORT COMMUNICATIONS AMERICA, LLC WI AT&T 1 33.3%
FRONTIER NORTH INC. - WI Frontier 1 33.3%
TON80 COMMUNICATIONS, LLC – 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 LODI in area code 608?

3 blocks: 591, 592, 869. The table above gives the holder of each.

Which carriers have numbers in LODI?

TELEPORT COMMUNICATIONS AMERICA, LLC WI (1 block), FRONTIER NORTH INC. - WI (1 block), TON80 COMMUNICATIONS, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is LODI 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 608

All 785 prefixes in 608