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

OCEAN CITY prefixes in area code 410

NANPA records 7 assigned NXX blocks to rate center OCEAN CITY in area code 410, 0.9% 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. 2 holders hold those blocks, the largest being VERIZON MARYLAND, INC. (6), TELEPORT COMMUNICATIONS AMERICA, LLC - MD (1). The earliest assignment on record here is 2009-06-10 and the most recent 2009-06-10. 3 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, 609, 640, 667 – overlay codes cover the same geography, so a rate center is served by all of them.

7 assigned blocks – 0.9% of 410
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
410-213 Verizon VERIZON MARYLAND, INC. – yes yes
410-250 Verizon VERIZON MARYLAND, INC. – no yes
410-289 Verizon VERIZON MARYLAND, INC. – no yes
410-390 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - MD 2009-06-10 yes yes
410-520 Verizon VERIZON MARYLAND, INC. – yes yes
410-524 Verizon VERIZON MARYLAND, INC. – no yes
410-723 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 85.7%
TELEPORT COMMUNICATIONS AMERICA, LLC - MD AT&T 1 14.3%

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 OCEAN CITY in area code 410?

7 blocks: 213, 250, 289, 390, 520, 524, 723. The table above gives the holder of each.

Which carriers have numbers in OCEAN CITY?

VERIZON MARYLAND, INC. (6 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - MD (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is OCEAN CITY 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