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

BUCKEYSTN prefixes in area code 240

NANPA records 5 assigned NXX blocks to rate center BUCKEYSTN in area code 240, 0.6% of the 785 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. 5 holders hold those blocks, the largest being MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (1), LEVEL 3 COMMUNICATIONS, LLC - MD (1), VERIZON MARYLAND, INC. (1). The earliest assignment on record here is 2001-05-22 and the most recent 2022-02-28. 5 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 301 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 240
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
240-341 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 2009-02-25 yes yes
240-436 Lumen LEVEL 3 COMMUNICATIONS, LLC - MD – yes yes
240-699 Verizon VERIZON MARYLAND, INC. 2001-05-22 yes yes
240-873 Onvoy ONVOY, LLC - MD 2019-10-10 yes yes
240-933 TON80 COMMUNICATIONS, LLC 2022-02-28 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
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD Verizon 1 20%
LEVEL 3 COMMUNICATIONS, LLC - MD Lumen 1 20%
VERIZON MARYLAND, INC. Verizon 1 20%
ONVOY, LLC - MD Onvoy 1 20%
TON80 COMMUNICATIONS, LLC – 1 20%

Frequently asked

Which prefixes belong to BUCKEYSTN in area code 240?

5 blocks: 341, 436, 699, 873, 933. The table above gives the holder of each.

Which carriers have numbers in BUCKEYSTN?

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (1 block), LEVEL 3 COMMUNICATIONS, LLC - MD (1 block), VERIZON MARYLAND, INC. (1 block), ONVOY, LLC - MD (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 BUCKEYSTN 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 240

All 785 prefixes in 240