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

CARLTON prefixes in area code 218

NANPA records 5 assigned NXX blocks to rate center CARLTON in area code 218, 0.7% of the 708 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 ONVOY, LLC - MN (2), BANDWIDTH.COM CLEC, LLC - MN (2), QWEST CORPORATION (1). The earliest assignment on record here is 2021-03-01 and the most recent 2024-08-20. 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 254, 503, 706, 762 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.7% of 218
3 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
218-218 Onvoy ONVOY, LLC - MN 2024-08-20 yes yes
218-384 Lumen QWEST CORPORATION – yes yes
218-660 Bandwidth BANDWIDTH.COM CLEC, LLC - MN 2022-01-20 yes yes
218-673 Bandwidth BANDWIDTH.COM CLEC, LLC - MN – yes yes
218-882 Onvoy ONVOY, LLC - MN 2021-03-01 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
ONVOY, LLC - MN Onvoy 2 40%
BANDWIDTH.COM CLEC, LLC - MN Bandwidth 2 40%
QWEST CORPORATION Lumen 1 20%

Frequently asked

Which prefixes belong to CARLTON in area code 218?

5 blocks: 218, 384, 660, 673, 882. The table above gives the holder of each.

Which carriers have numbers in CARLTON?

ONVOY, LLC - MN (2 blocks), BANDWIDTH.COM CLEC, LLC - MN (2 blocks), QWEST CORPORATION (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CARLTON 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 218

All 708 prefixes in 218