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

MOSHEIM prefixes in area code 423

NANPA records 4 assigned NXX blocks to rate center MOSHEIM in area code 423, 0.5% of the 764 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. 4 holders hold those blocks, the largest being UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN (1), COMCAST IP PHONE, LLC (1), BANDWIDTH.COM CLEC, LLC - TN (1). The earliest assignment on record here is 2008-10-23 and the most recent 2023-08-22. 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 code 254 – overlay codes cover the same geography, so a rate center is served by all of them.

4 assigned blocks – 0.5% of 423
4 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
423-422 Lumen UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN – yes yes
423-450 Comcast COMCAST IP PHONE, LLC 2008-10-23 no yes
423-657 Bandwidth BANDWIDTH.COM CLEC, LLC - TN 2015-01-28 yes yes
423-868 Onvoy ONVOY, LLC - TN 2023-08-22 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
UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN Lumen 1 25%
COMCAST IP PHONE, LLC Comcast 1 25%
BANDWIDTH.COM CLEC, LLC - TN Bandwidth 1 25%
ONVOY, LLC - TN Onvoy 1 25%

Frequently asked

Which prefixes belong to MOSHEIM in area code 423?

4 blocks: 422, 450, 657, 868. The table above gives the holder of each.

Which carriers have numbers in MOSHEIM?

UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN (1 block), COMCAST IP PHONE, LLC (1 block), BANDWIDTH.COM CLEC, LLC - TN (1 block), ONVOY, LLC - TN (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MOSHEIM 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 423

All 764 prefixes in 423