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

HARTWOOD prefixes in area code 540

NANPA records 7 assigned NXX blocks to rate center HARTWOOD in area code 540, 0.9% of the 786 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. 6 holders hold those blocks, the largest being VERIZON VIRGINIA, INC. (2), COMCAST IP PHONE, LLC (1), PEERLESS NETWORK OF VIRGINIA, LLC - VA (1). The earliest assignment on record here is 2012-04-23 and the most recent 2021-04-26. 7 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 826 – overlay codes cover the same geography, so a rate center is served by all of them.

7 assigned blocks – 0.9% of 540
6 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
540-286 Verizon VERIZON VIRGINIA, INC. – yes yes
540-356 Comcast COMCAST IP PHONE, LLC 2012-04-23 yes yes
540-386 Peerless PEERLESS NETWORK OF VIRGINIA, LLC - VA 2018-11-01 yes yes
540-390 Bandwidth BANDWIDTH.COM CLEC, LLC - VA 2016-06-23 yes yes
540-737 Windstream PAETEC ITEL, LLC – yes yes
540-752 Verizon VERIZON VIRGINIA, INC. – yes yes
540-796 HD CARRIER LLC 2021-04-26 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
VERIZON VIRGINIA, INC. Verizon 2 28.6%
COMCAST IP PHONE, LLC Comcast 1 14.3%
PEERLESS NETWORK OF VIRGINIA, LLC - VA Peerless 1 14.3%
BANDWIDTH.COM CLEC, LLC - VA Bandwidth 1 14.3%
PAETEC ITEL, LLC Windstream 1 14.3%
HD CARRIER LLC – 1 14.3%

Frequently asked

Which prefixes belong to HARTWOOD in area code 540?

7 blocks: 286, 356, 386, 390, 737, 752, 796. The table above gives the holder of each.

Which carriers have numbers in HARTWOOD?

VERIZON VIRGINIA, INC. (2 blocks), COMCAST IP PHONE, LLC (1 block), PEERLESS NETWORK OF VIRGINIA, LLC - VA (1 block), BANDWIDTH.COM CLEC, LLC - VA (1 block), PAETEC ITEL, LLC (1 block), HD CARRIER 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 HARTWOOD 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 540

All 786 prefixes in 540