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

MONTICELLO prefixes in area code 601

NANPA records 6 assigned NXX blocks to rate center MONTICELLO in area code 601, 0.8% 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 TELEPAK NETWORKS, INC. - MS (2), CELLULAR SOUTH, INC. (1), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (1). The earliest assignment on record here is 2001-02-28 and the most recent 2005-06-06. 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 217, 319, 329, 336 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 0.8% of 601
5 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
601-393 TELEPAK NETWORKS, INC. - MS 2001-12-11 no yes
601-455 CELLULAR SOUTH, INC. 2001-02-28 no yes
601-587 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
601-615 TELEPAK NETWORKS, INC. - MS 2001-12-11 no yes
601-756 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 2003-10-13 yes yes
601-806 Lumen LEVEL 3 COMMUNICATIONS, LLC - MS 2005-06-06 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
TELEPAK NETWORKS, INC. - MS – 2 33.3%
CELLULAR SOUTH, INC. – 1 16.7%
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL AT&T 1 16.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS Verizon 1 16.7%
LEVEL 3 COMMUNICATIONS, LLC - MS Lumen 1 16.7%

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 MONTICELLO in area code 601?

6 blocks: 393, 455, 587, 615, 756, 806. The table above gives the holder of each.

Which carriers have numbers in MONTICELLO?

TELEPAK NETWORKS, INC. - MS (2 blocks), CELLULAR SOUTH, INC. (1 block), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS (1 block), LEVEL 3 COMMUNICATIONS, 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 MONTICELLO 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