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

SWEENY prefixes in area code 979

NANPA records 6 assigned NXX blocks to rate center SWEENY in area code 979, 1.5% of the 413 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. 2 holders hold those blocks, the largest being WINDSTREAM SUGAR LAND, LLC (5), GRANDE COMMUNICATIONS NETWORKS, INC. - TX (1). The earliest assignment on record here is 2017-08-01 and the most recent 2017-08-01. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

6 assigned blocks – 1.5% of 979
2 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
979-205 Windstream WINDSTREAM SUGAR LAND, LLC 2017-08-01 yes yes
979-474 GRANDE COMMUNICATIONS NETWORKS, INC. - TX – yes yes
979-490 Windstream WINDSTREAM SUGAR LAND, LLC – yes yes
979-491 Windstream WINDSTREAM SUGAR LAND, LLC – yes yes
979-548 Windstream WINDSTREAM SUGAR LAND, LLC – yes yes
979-647 Windstream WINDSTREAM SUGAR LAND, LLC – 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
WINDSTREAM SUGAR LAND, LLC Windstream 5 83.3%
GRANDE COMMUNICATIONS NETWORKS, INC. - TX – 1 16.7%

Frequently asked

Which prefixes belong to SWEENY in area code 979?

6 blocks: 205, 474, 490, 491, 548, 647. The table above gives the holder of each.

Which carriers have numbers in SWEENY?

WINDSTREAM SUGAR LAND, LLC (5 blocks), GRANDE COMMUNICATIONS NETWORKS, INC. - TX (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SWEENY 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 979

All 413 prefixes in 979