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

MACKSVILLE prefixes in area code 620

NANPA records 3 assigned NXX blocks to rate center MACKSVILLE in area code 620, 0.4% of the 705 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 GBT COMMUNICATIONS, INC. - KS (1), UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK (1), LEVEL 3 COMMUNICATIONS, LLC - KS (1). The earliest assignment on record here is 2001-07-02 and the most recent 2008-09-30. 2 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 620
3 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
620-320 GBT COMMUNICATIONS, INC. - KS 2008-09-30 yes yes
620-348 Lumen UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK – no yes
620-614 Lumen LEVEL 3 COMMUNICATIONS, LLC - KS 2001-07-02 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
GBT COMMUNICATIONS, INC. - KS – 1 33.3%
UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK Lumen 1 33.3%
LEVEL 3 COMMUNICATIONS, LLC - KS Lumen 1 33.3%

Frequently asked

Which prefixes belong to MACKSVILLE in area code 620?

3 blocks: 320, 348, 614. The table above gives the holder of each.

Which carriers have numbers in MACKSVILLE?

GBT COMMUNICATIONS, INC. - KS (1 block), UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK (1 block), LEVEL 3 COMMUNICATIONS, LLC - KS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MACKSVILLE 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 620

All 705 prefixes in 620