Hillsboro, MD — rate center
- State
- Maryland
- Active prefixes
- 3
- Carriers
- 3
- Pooled prefixes
- 3
- LATA
- 242
- Metro area
- Baltimore-Columbia-Towson, MD MSA
In NANP numbering, Hillsboro, Maryland is a rate center — the anchor point for local numbers. It is reached through 410, 667 (multiple area codes serve it).
3 central-office prefixes are currently anchored to this rate center, held by 3 different carriers. Pooling applies to 3 of them — individual thousands-blocks may belong to different companies.
The rate center belongs to the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area. Routing-wise it sits in LATA 242.
Because 410, 667 all serve this territory, two Hillsboro numbers can look completely different while being neighbors — check the prefix, not just the area code.
Hillsboro is a small rate center: 3 prefixes across 3 carriers serve it. Small localities like this often keep the same blocks for decades, so the prefix-to-place mapping tends to be stable.
Treat this data as geography of the number, not of the caller: porting, VoIP and caller-ID spoofing all detach the two. When a call matters, hang up and call back through an official number.
Prefixes anchored to Hillsboro
| Prefix | Code holder | Pooled |
|---|---|---|
| 410-364 | VERIZON MARYLAND, INC. | Yes |
FAQ
What area code is Hillsboro, MD?
Hillsboro is served by 2 area codes — 410, 667 — which overlay the same territory.
How many prefixes does Hillsboro have?
3 active NXX prefixes are anchored to this rate center in NANPA records, held by 3 carriers.
Is a call from a Hillsboro prefix really from Hillsboro?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.