Havre De Grace, MD — rate center
- State
- Maryland
- Active prefixes
- 8
- Carriers
- 5
- Pooled prefixes
- 7
- LATA
- 238
- Metro area
- Baltimore-Columbia-Towson, MD MSA
The Havre De Grace rate center (Maryland) anchors 8 active prefixes under area codes 410, 443, 667. Rate centers, not city limits, are what phone numbers are legally tied to.
NANPA records show 8 active prefixes here across 5 carriers. 7 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
The rate center belongs to the Baltimore-Columbia-Towson, MD 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 Havre De Grace 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 Havre De Grace
| Prefix | Code holder | Pooled |
|---|---|---|
| 410-939 | VERIZON MARYLAND, INC. | No |
| 410-942 | VERIZON MARYLAND, INC. | Yes |
FAQ
What area code is Havre De Grace, MD?
Havre De Grace is served by 3 area codes — 410, 443, 667 — which overlay the same territory.
How many prefixes does Havre De Grace have?
8 active NXX prefixes are anchored to this rate center in NANPA records, held by 5 carriers.
Is a call from a Havre De Grace prefix really from Havre De Grace?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.