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

DEL NORTE prefixes in area code 719

NANPA records 4 assigned NXX blocks to rate center DEL NORTE in area code 719, 0.6% of the 665 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 QWEST CORPORATION (2), TELNYX LLC (1), TON80 COMMUNICATIONS, LLC (1). The earliest assignment on record here is 2022-03-03 and the most recent 2022-03-03. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.6% of 719
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
719-451 Telnyx TELNYX LLC – yes yes
719-657 Lumen QWEST CORPORATION – yes yes
719-872 TON80 COMMUNICATIONS, LLC 2022-03-03 yes yes
719-873 Lumen QWEST CORPORATION – 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
QWEST CORPORATION Lumen 2 50%
TELNYX LLC Telnyx 1 25%
TON80 COMMUNICATIONS, LLC – 1 25%

Frequently asked

Which prefixes belong to DEL NORTE in area code 719?

4 blocks: 451, 657, 872, 873. The table above gives the holder of each.

Which carriers have numbers in DEL NORTE?

QWEST CORPORATION (2 blocks), TELNYX LLC (1 block), TON80 COMMUNICATIONS, 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 DEL NORTE 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 719

All 665 prefixes in 719