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

LLANO prefixes in area code 325

NANPA records 5 assigned NXX blocks to rate center LLANO in area code 325, 1.2% of the 408 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. 4 holders hold those blocks, the largest being FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (2), LEVEL 3 COMMUNICATIONS, LLC - TX (1), ONVOY, LLC - TX (1). The earliest assignment on record here is 2002-12-03 and the most recent 2020-10-26. 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

5 assigned blocks – 1.2% of 325
4 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
325-216 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2002-12-03 yes yes
325-247 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
325-248 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
325-322 Onvoy ONVOY, LLC - TX 2020-10-26 yes yes
325-423 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX – 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
FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS Frontier 2 40%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 1 20%
ONVOY, LLC - TX Onvoy 1 20%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 1 20%

Frequently asked

Which prefixes belong to LLANO in area code 325?

5 blocks: 216, 247, 248, 322, 423. The table above gives the holder of each.

Which carriers have numbers in LLANO?

FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - TX (1 block), ONVOY, LLC - TX (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 LLANO 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 325

All 408 prefixes in 325