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

CRYSTAL LK prefixes in area code 779

NANPA records 5 assigned NXX blocks to rate center CRYSTAL LK in area code 779, 1.4% of the 354 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. 5 holders hold those blocks, the largest being BANDWIDTH.COM CLEC, LLC - IL (1), FRACTEL, LLC (1), ONVOY SPECTRUM, LLC (1). The earliest assignment on record here is 2011-05-25 and the most recent 2024-03-22. 5 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 641, 815 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 1.4% of 779
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
779-220 Bandwidth BANDWIDTH.COM CLEC, LLC - IL 2011-05-25 yes yes
779-356 FRACTEL, LLC 2020-07-14 yes yes
779-388 Charter ONVOY SPECTRUM, LLC 2024-03-22 yes yes
779-800 Onvoy ONVOY, LLC 2013-04-11 yes yes
779-994 Peerless PEERLESS NETWORK OF ILLINOIS, LLC - IL 2013-04-10 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 20%
FRACTEL, LLC – 1 20%
ONVOY SPECTRUM, LLC Charter 1 20%
ONVOY, LLC Onvoy 1 20%
PEERLESS NETWORK OF ILLINOIS, LLC - IL Peerless 1 20%

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 CRYSTAL LK in area code 779?

5 blocks: 220, 356, 388, 800, 994. The table above gives the holder of each.

Which carriers have numbers in CRYSTAL LK?

BANDWIDTH.COM CLEC, LLC - IL (1 block), FRACTEL, LLC (1 block), ONVOY SPECTRUM, LLC (1 block), ONVOY, LLC (1 block), PEERLESS NETWORK OF ILLINOIS, LLC - 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 CRYSTAL LK 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 779

All 354 prefixes in 779