Berlin, MD — rate center
In NANP numbering, Berlin, Maryland is a rate center — the anchor point for local numbers. It is reached through 410, 443, 667 (multiple area codes serve it).
NANPA records show 9 active prefixes here, held by 7 different carriers. Pooling applies to 8 of them — individual thousands-blocks may belong to different companies.
Routing-wise it sits in LATA 242.
Because 410, 443, 667 all serve this territory, two Berlin numbers can look completely different while being neighbors — check the prefix, not just the area code.
As always with US numbering: a prefix anchored to Berlin tells you where the block was issued. The person calling may have ported the number, moved away, or be spoofing it entirely — verify callers through independently found contact details.
Prefixes anchored to Berlin
| Prefix | Code holder | Pooled |
|---|---|---|
| 410-208 | VERIZON MARYLAND, INC. | Yes |
| 410-600 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | Yes |
| 410-629 | VERIZON MARYLAND, INC. | Yes |
| 410-641 | VERIZON MARYLAND, INC. | No |
| 410-973 | MCC TELEPHONY OF THE MID-ATLANTIC, LLC - MD | Yes |
FAQ
What area code is Berlin, MD?
Berlin is served by 3 area codes — 410, 443, 667 — which overlay the same territory.
How many prefixes does Berlin have?
9 active NXX prefixes are anchored to this rate center in NANPA records, held by 7 carriers.
Is a call from a Berlin prefix really from Berlin?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.