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

LEWISTOWN prefixes in area code 309

NANPA records 3 assigned NXX blocks to rate center LEWISTOWN in area code 309, 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 LEVEL 3 COMMUNICATIONS, LLC - IL (1), ILLINOIS BELL TEL CO (1), TELNYX LLC (1). The earliest assignment on record here is 2004-06-23 and the most recent 2017-03-13. 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 223, 406, 573, 717 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.4% of 309
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
309-518 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL 2004-06-23 yes yes
309-547 AT&T ILLINOIS BELL TEL CO – yes yes
309-869 Telnyx TELNYX LLC 2017-03-13 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
LEVEL 3 COMMUNICATIONS, LLC - IL Lumen 1 33.3%
ILLINOIS BELL TEL CO AT&T 1 33.3%
TELNYX LLC Telnyx 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 LEWISTOWN in area code 309?

3 blocks: 518, 547, 869. The table above gives the holder of each.

Which carriers have numbers in LEWISTOWN?

LEVEL 3 COMMUNICATIONS, LLC - IL (1 block), ILLINOIS BELL TEL CO (1 block), TELNYX 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 LEWISTOWN 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 309

All 786 prefixes in 309