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

MARINE prefixes in area code 618

NANPA records 3 assigned NXX blocks to rate center MARINE in area code 618, 0.4% of the 786 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 BANDWIDTH.COM CLEC, LLC - IL (1), PEERLESS NETWORK OF ILLINOIS, LLC - IL (1), ILLINOIS BELL TEL CO (1). The earliest assignment on record here is 2012-04-18 and the most recent 2020-03-25. 3 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

3 assigned blocks – 0.4% of 618
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
618-350 Bandwidth BANDWIDTH.COM CLEC, LLC - IL 2020-03-25 yes yes
618-413 Peerless PEERLESS NETWORK OF ILLINOIS, LLC - IL 2012-04-18 yes yes
618-887 AT&T ILLINOIS BELL TEL CO – 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
BANDWIDTH.COM CLEC, LLC - IL Bandwidth 1 33.3%
PEERLESS NETWORK OF ILLINOIS, LLC - IL Peerless 1 33.3%
ILLINOIS BELL TEL CO AT&T 1 33.3%

Frequently asked

Which prefixes belong to MARINE in area code 618?

3 blocks: 350, 413, 887. The table above gives the holder of each.

Which carriers have numbers in MARINE?

BANDWIDTH.COM CLEC, LLC - IL (1 block), PEERLESS NETWORK OF ILLINOIS, LLC - IL (1 block), ILLINOIS BELL TEL CO (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MARINE 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 618

All 786 prefixes in 618