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

GLENBURNIE prefixes in area code 410

NANPA records 29 assigned NXX blocks to rate center GLENBURNIE in area code 410, 3.7% 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. 6 holders hold those blocks, the largest being VERIZON MARYLAND, INC. (23), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (2), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (1). The earliest assignment on record here is 2003-06-09 and the most recent 2020-01-08. 19 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.

29 assigned blocks – 3.7% of 410
6 holders of record
19 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
410-210 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 2020-01-08 yes yes
410-412 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD – yes yes
410-424 Verizon VERIZON MARYLAND, INC. – yes yes
410-487 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD – yes yes
410-508 Verizon VERIZON MARYLAND, INC. – yes yes
410-553 Verizon VERIZON MARYLAND, INC. – yes yes
410-582 Verizon VERIZON MARYLAND, INC. – yes yes
410-590 Verizon VERIZON MARYLAND, INC. – no yes
410-595 Lumen LEVEL 3 TELECOM OF MARYLAND, LLC - MD – yes yes
410-684 Verizon VERIZON MARYLAND, INC. – yes yes
410-689 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - MD – yes yes
410-691 Verizon VERIZON MARYLAND, INC. – yes yes
410-694 Verizon VERIZON MARYLAND, INC. – yes yes
410-760 Verizon VERIZON MARYLAND, INC. – no yes
410-761 Verizon VERIZON MARYLAND, INC. – no yes
410-762 Verizon VERIZON MARYLAND, INC. – yes yes
410-765 Verizon VERIZON MARYLAND, INC. – no yes
410-766 Verizon VERIZON MARYLAND, INC. – no yes
410-768 Verizon VERIZON MARYLAND, INC. – no yes
410-787 Verizon VERIZON MARYLAND, INC. – no yes
410-850 Verizon VERIZON MARYLAND, INC. – no yes
410-855 Verizon VERIZON MARYLAND, INC. – yes yes
410-859 Verizon VERIZON MARYLAND, INC. – no yes
410-863 Verizon VERIZON MARYLAND, INC. – yes yes
410-865 Verizon VERIZON MARYLAND, INC. – yes yes
410-892 Verizon VERIZON MARYLAND, INC. – yes yes
410-981 Verizon VERIZON MARYLAND, INC. – yes yes
410-993 Verizon VERIZON MARYLAND, INC. – no yes
410-999 BALTIMORE-WASHINGTON TELEPHONE (BWT) 2003-06-09 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 MARYLAND, INC. Verizon 23 79.3%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD Verizon 2 6.9%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD Verizon 1 3.4%
LEVEL 3 TELECOM OF MARYLAND, LLC - MD Lumen 1 3.4%
TELEPORT COMMUNICATIONS AMERICA, LLC - MD AT&T 1 3.4%
BALTIMORE-WASHINGTON TELEPHONE (BWT) – 1 3.4%

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 GLENBURNIE in area code 410?

29 blocks: 210, 412, 424, 487, 508, 553, 582, 590, 595, 684, 689, 691 and 17 more, all listed in the table above.

Which carriers have numbers in GLENBURNIE?

VERIZON MARYLAND, INC. (23 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (1 block), LEVEL 3 TELECOM OF MARYLAND, LLC - MD (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - MD (1 block), BALTIMORE-WASHINGTON TELEPHONE (BWT) (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is GLENBURNIE 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