Sykesville, MD — rate center
- State
- Maryland
- Active prefixes
- 17
- Carriers
- 9
- Pooled prefixes
- 14
- LATA
- 238
- Metro area
- Baltimore-Columbia-Towson, MD MSA
Phone numbers "from Sykesville" are, precisely speaking, numbers whose prefixes are anchored to the Sykesville rate center of Maryland, under 410, 443, 667.
The rate center currently carries 17 working prefixes across 9 carriers. 14 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.
A Sykesville 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 Sykesville
| Prefix | Code holder | Pooled |
|---|---|---|
| 410-549 | VERIZON MARYLAND, INC. | No |
| 410-552 | VERIZON MARYLAND, INC. | Yes |
| 410-795 | VERIZON MARYLAND, INC. | No |
| 410-875 | VERIZON MARYLAND, INC. | Yes |
| 410-970 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | Yes |
| 410-984 | METROPCS, INC. | Yes |
FAQ
What area code is Sykesville, MD?
Sykesville is served by 3 area codes — 410, 443, 667 — which overlay the same territory.
How many prefixes does Sykesville have?
17 active NXX prefixes are anchored to this rate center in NANPA records, held by 9 carriers.
Is a call from a Sykesville prefix really from Sykesville?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.