Snow Hill, MD — rate center

NANPA rate center & CO code data, current as of July 28, 2026.

Phone numbers "from Snow Hill" are, precisely speaking, numbers whose prefixes are anchored to the Snow Hill rate center of Maryland, under 410, 443, 667.

NANPA records show 3 active prefixes here across 3 carriers. 3 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.

Routing-wise it sits in LATA 242.

Multiple area codes over one rate center (410/443/667) is the overlay pattern: same geography, different first three digits.

With only 3 prefixes, Snow Hill sits at the small end of Maryland's rate centers — a handful of carrier blocks cover the whole locality, and a number from here is a fairly strong locality signal (before porting is considered).

As always with US numbering: a prefix anchored to Snow Hill 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 Snow Hill

FAQ

What area code is Snow Hill, MD?

Snow Hill is served by 3 area codes — 410, 443, 667 — which overlay the same territory.

How many prefixes does Snow Hill have?

3 active NXX prefixes are anchored to this rate center in NANPA records, held by 3 carriers.

Is a call from a Snow Hill prefix really from Snow Hill?

Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.