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

ARBUTUS prefixes in area code 410

NANPA records 10 assigned NXX blocks to rate center ARBUTUS in area code 410, 1.3% of the 783 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 VERIZON MARYLAND, INC. (6), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (1), PAETEC ITEL, LLC (1). The earliest assignment on record here is 2005-06-28 and the most recent 2005-06-28. 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 codes 443, 667 – overlay codes cover the same geography, so a rate center is served by all of them.

10 assigned blocks – 1.3% of 410
5 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
410-204 Verizon VERIZON MARYLAND, INC. – yes yes
410-242 Verizon VERIZON MARYLAND, INC. – no yes
410-247 Verizon VERIZON MARYLAND, INC. – no yes
410-314 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD – yes yes
410-395 Verizon VERIZON MARYLAND, INC. – yes yes
410-501 Windstream PAETEC ITEL, LLC 2005-06-28 yes yes
410-536 Verizon VERIZON MARYLAND, INC. – yes yes
410-565 Lumen LEVEL 3 TELECOM OF MARYLAND, LLC - MD – yes yes
410-587 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
410-737 Verizon VERIZON MARYLAND, INC. – no 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 MARYLAND, INC. Verizon 6 60%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD Verizon 1 10%
PAETEC ITEL, LLC Windstream 1 10%
LEVEL 3 TELECOM OF MARYLAND, LLC - MD Lumen 1 10%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 10%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to ARBUTUS in area code 410?

10 blocks: 204, 242, 247, 314, 395, 501, 536, 565, 587, 737. The table above gives the holder of each.

Which carriers have numbers in ARBUTUS?

VERIZON MARYLAND, INC. (6 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (1 block), PAETEC ITEL, LLC (1 block), LEVEL 3 TELECOM OF MARYLAND, LLC - MD (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES 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 ARBUTUS 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 410

All 783 prefixes in 410