Phone numbers in Berlin, Maryland
Berlin has 9 phone prefixes in area codes 410, 443, 667.
Biggest holders: Verizon (local phone), MCImetro (Verizon Business), Mcc Telephony Of The Mid-atlantic. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 11%
- Local phone company 33%
- Internet / business phone carrier 56%
Every prefix in Berlin
Search the first six digits of a number in this list. If it's here, the number started in Berlin with the carrier shown. If it isn't, check the Maryland page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 410-208 | Verizon (local phone) | Local phone company | – |
| 410-600 | MCImetro (Verizon Business) | Internet / business phone carrier | 2006 |
| 410-629 | Verizon (local phone) | Local phone company | – |
| 410-641 | Verizon (local phone) | Local phone company | – |
| 410-973 | Mcc Telephony Of The Mid-atlantic | Internet / business phone carrier | 2010 |
| 443-513 | AT&T Mobility | Mobile carrier | – |
| 443-728 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 667-288 | Level 3 (Lumen) | Internet / business phone carrier | 2020 |
| 667-827 | TON80 Communications | Internet / business phone carrier | 2022 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.