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

INDENDNTHL prefixes in area code 571

NANPA records 6 assigned NXX blocks to rate center INDENDNTHL in area code 571, 0.9% of the 639 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 YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA (2), ONVOY, LLC - VA (2), CORETEL VIRGINIA, LLC - VA (1). The earliest assignment on record here is 2006-11-17 and the most recent 2022-02-18. 6 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 code 703 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 0.9% of 571
4 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
571-360 CORETEL VIRGINIA, LLC - VA 2018-06-26 yes yes
571-374 YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 2006-11-17 yes yes
571-399 YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 2009-02-02 yes yes
571-615 Onvoy ONVOY, LLC - VA 2021-04-30 yes yes
571-688 TON80 COMMUNICATIONS, LLC 2022-02-18 yes yes
571-998 Onvoy ONVOY, LLC - VA 2020-05-08 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
YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA – 2 33.3%
ONVOY, LLC - VA Onvoy 2 33.3%
CORETEL VIRGINIA, LLC - VA – 1 16.7%
TON80 COMMUNICATIONS, LLC – 1 16.7%

Frequently asked

Which prefixes belong to INDENDNTHL in area code 571?

6 blocks: 360, 374, 399, 615, 688, 998. The table above gives the holder of each.

Which carriers have numbers in INDENDNTHL?

YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA (2 blocks), ONVOY, LLC - VA (2 blocks), CORETEL VIRGINIA, LLC - VA (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 INDENDNTHL 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 571

All 639 prefixes in 571