FROSTBURG prefixes in area code 240
NANPA records 4 assigned NXX blocks to rate center FROSTBURG in area code 240, 0.5% 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. 4 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - MD (1), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (1), ONVOY, LLC - MD (1). The earliest assignment on record here is 2004-11-01 and the most recent 2022-08-05. 4 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.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 240-284 | Lumen LEVEL 3 COMMUNICATIONS, LLC - MD | 2004-11-01 | yes | yes |
| 240-657 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 2016-01-06 | yes | yes |
| 240-824 | Onvoy ONVOY, LLC - MD | 2021-03-15 | yes | yes |
| 240-943 | Comcast COMCAST IP PHONE, LLC | 2022-08-05 | 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - MD | Lumen | 1 | 25% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | Verizon | 1 | 25% |
| ONVOY, LLC - MD | Onvoy | 1 | 25% |
| COMCAST IP PHONE, LLC | Comcast | 1 | 25% |
Frequently asked
Which prefixes belong to FROSTBURG in area code 240?
4 blocks: 284, 657, 824, 943. The table above gives the holder of each.
Which carriers have numbers in FROSTBURG?
LEVEL 3 COMMUNICATIONS, LLC - MD (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (1 block), ONVOY, LLC - MD (1 block), COMCAST IP PHONE, 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 FROSTBURG 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.