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

HEIDELBERG prefixes in area code 601

NANPA records 5 assigned NXX blocks to rate center HEIDELBERG in area code 601, 0.6% of the 783 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. 5 holders hold those blocks, the largest being TERRA NOVA TELECOM INC. (1), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (1), TELEPAK NETWORKS, INC. - MS (1). The earliest assignment on record here is 2001-10-09 and the most recent 2001-10-09. 4 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 769 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 601
5 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
601-343 TERRA NOVA TELECOM INC. 2001-10-09 yes yes
601-787 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
601-903 TELEPAK NETWORKS, INC. - MS – no yes
601-935 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS – yes yes
601-997 Bandwidth BANDWIDTH.COM CLEC, LLC - MS – 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
TERRA NOVA TELECOM INC. – 1 20%
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL AT&T 1 20%
TELEPAK NETWORKS, INC. - MS – 1 20%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS Verizon 1 20%
BANDWIDTH.COM CLEC, LLC - MS Bandwidth 1 20%

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 HEIDELBERG in area code 601?

5 blocks: 343, 787, 903, 935, 997. The table above gives the holder of each.

Which carriers have numbers in HEIDELBERG?

TERRA NOVA TELECOM INC. (1 block), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (1 block), TELEPAK NETWORKS, INC. - MS (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS (1 block), BANDWIDTH.COM CLEC, LLC - MS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is HEIDELBERG 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 601

All 783 prefixes in 601