New Windsor, MD — rate center
- State
- Maryland
- Active prefixes
- 7
- Carriers
- 6
- Pooled prefixes
- 7
- LATA
- 238
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV MSA
The New Windsor rate center (Maryland) anchors 7 active prefixes under area codes 410, 443, 667. Rate centers, not city limits, are what phone numbers are legally tied to.
NANPA records show 7 active prefixes here across 6 carriers. 7 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
The rate center belongs to the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area. Routing-wise it sits in LATA 238.
Multiple area codes over one rate center (410/443/667) is the overlay pattern: same geography, different first three digits.
As always with US numbering: a prefix anchored to New Windsor 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 New Windsor
| Prefix | Code holder | Pooled |
|---|---|---|
| 410-635 | VERIZON MARYLAND, INC. | Yes |
FAQ
What area code is New Windsor, MD?
New Windsor is served by 3 area codes — 410, 443, 667 — which overlay the same territory.
How many prefixes does New Windsor have?
7 active NXX prefixes are anchored to this rate center in NANPA records, held by 6 carriers.
Is a call from a New Windsor prefix really from New Windsor?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.