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

HARPER prefixes in area code 620

NANPA records 4 assigned NXX blocks to rate center HARPER in area code 620, 0.6% 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 SOUTHWESTERN BELL (2), UNITED STATES CELLULAR - KS (1), SOUTH CENTRAL WIRELESS DBA SC TELCOM - KS (1). The earliest assignment on record here is 2001-03-20 and the most recent 2001-06-11. 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 541, 641, 830 – overlay codes cover the same geography, so a rate center is served by all of them.

4 assigned blocks – 0.6% of 620
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
620-740 UNITED STATES CELLULAR - KS – yes yes
620-840 AT&T SOUTHWESTERN BELL 2001-06-11 yes yes
620-896 AT&T SOUTHWESTERN BELL – yes yes
620-916 SOUTH CENTRAL WIRELESS DBA SC TELCOM - KS 2001-03-20 no 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
SOUTHWESTERN BELL AT&T 2 50%
UNITED STATES CELLULAR - KS – 1 25%
SOUTH CENTRAL WIRELESS DBA SC TELCOM - KS – 1 25%

Frequently asked

Which prefixes belong to HARPER in area code 620?

4 blocks: 740, 840, 896, 916. The table above gives the holder of each.

Which carriers have numbers in HARPER?

SOUTHWESTERN BELL (2 blocks), UNITED STATES CELLULAR - KS (1 block), SOUTH CENTRAL WIRELESS DBA SC TELCOM - 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 HARPER 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