Federalsburg, MD — rate center
In NANP numbering, Federalsburg, Maryland is a rate center — the anchor point for local numbers. It is reached through 410, 443, 667 (multiple area codes serve it).
The rate center currently carries 4 working prefixes, held by 4 different carriers. Pooling applies to 4 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 Federalsburg numbers can look completely different while being neighbors — check the prefix, not just the area code.
Federalsburg is a small rate center: 4 prefixes across 4 carriers serve it. Small localities like this often keep the same blocks for decades, so the prefix-to-place mapping tends to be stable.
A Federalsburg prefix on caller ID is a starting point, not proof of origin — numbers travel with their owners and displays can be spoofed. Use official callback numbers for anything sensitive.
Prefixes anchored to Federalsburg
| Prefix | Code holder | Pooled |
|---|---|---|
| 410-754 | VERIZON MARYLAND, INC. | Yes |
FAQ
What area code is Federalsburg, MD?
Federalsburg is served by 3 area codes — 410, 443, 667 — which overlay the same territory.
How many prefixes does Federalsburg have?
4 active NXX prefixes are anchored to this rate center in NANPA records, held by 4 carriers.
Is a call from a Federalsburg prefix really from Federalsburg?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.