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

FORTLUPTON prefixes in area code 983

NANPA records 3 assigned NXX blocks to rate center FORTLUPTON in area code 983, 6.2% of the 48 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 SHELCOMM (1), T-MOBILE USA, INC. (1), AHOI LLC (1). The earliest assignment on record here is 2024-09-05 and the most recent 2025-11-18. 2 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 303, 720 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 6.2% of 983
3 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
983-206 SHELCOMM 2024-09-05 no yes
983-209 T-Mobile T-MOBILE USA, INC. 2024-09-12 yes yes
983-227 AHOI LLC 2025-11-18 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
SHELCOMM – 1 33.3%
T-MOBILE USA, INC. T-Mobile 1 33.3%
AHOI LLC – 1 33.3%

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 FORTLUPTON in area code 983?

3 blocks: 206, 209, 227. The table above gives the holder of each.

Which carriers have numbers in FORTLUPTON?

SHELCOMM (1 block), T-MOBILE USA, INC. (1 block), AHOI 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 FORTLUPTON 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 983

All 48 prefixes in 983