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

HECKER prefixes in area code 618

NANPA records 3 assigned NXX blocks to rate center HECKER 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. 2 holders hold those blocks, the largest being MCC TELEPHONY LLC (2), FRONTIER NORTH, INC. - IL (1). The earliest assignment on record here is 2010-03-23 and the most recent 2010-03-23. 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
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
618-405 MCC TELEPHONY LLC – yes yes
618-430 MCC TELEPHONY LLC 2010-03-23 yes yes
618-473 Frontier FRONTIER NORTH, INC. - IL – 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
MCC TELEPHONY LLC – 2 66.7%
FRONTIER NORTH, INC. - IL Frontier 1 33.3%

Frequently asked

Which prefixes belong to HECKER in area code 618?

3 blocks: 405, 430, 473. The table above gives the holder of each.

Which carriers have numbers in HECKER?

MCC TELEPHONY LLC (2 blocks), FRONTIER NORTH, INC. - IL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is HECKER 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