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

COTTONPORT prefixes in area code 318

NANPA records 3 assigned NXX blocks to rate center COTTONPORT in area code 318, 0.4% of the 765 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 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA (1), CENTURYLINK COMMUNICATIONS, LLC (1), BRIGHTSPEED OF LOUISIANA, LLC (1). The earliest assignment on record here is 2004-03-26 and the most recent 2013-11-15. 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 318
3 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
318-587 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 2004-03-26 yes yes
318-604 Lumen CENTURYLINK COMMUNICATIONS, LLC 2013-11-15 yes yes
318-876 Brightspeed BRIGHTSPEED OF LOUISIANA, LLC – 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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA Verizon 1 33.3%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 33.3%
BRIGHTSPEED OF LOUISIANA, LLC Brightspeed 1 33.3%

Frequently asked

Which prefixes belong to COTTONPORT in area code 318?

3 blocks: 587, 604, 876. The table above gives the holder of each.

Which carriers have numbers in COTTONPORT?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA (1 block), CENTURYLINK COMMUNICATIONS, LLC (1 block), BRIGHTSPEED OF LOUISIANA, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is COTTONPORT 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 318

All 765 prefixes in 318