Prefix 410-999 — Glen Burnie, MD
- Area code
- 410
- Prefix (NXX)
- 999
- Rate center
- Glen Burnie
- State
- Maryland
- Time zone
- Eastern
- Code holder
- BALTIMORE-WASHINGTON TELEPHONE (BWT)
- OCN
- 8697
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2003-06-09
- LATA
- 238
410-999 identifies a block of numbers in Glen Burnie, MD, within the 410 area code. Every US prefix is tied to exactly one rate center; this one is Glen Burnie.
The rate center lies in the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area. The serving LATA is 238. Local time follows the Eastern zone.
Treat the on-screen number as a hint, not evidence — 410-999 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
NANPA's central-office code records list BALTIMORE-WASHINGTON TELEPHONE (BWT) (OCN 8697) as the code holder, assigned June 9, 2003. Because 410-999 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 410-996 | Elkton | VERIZON MARYLAND, INC. |
| 410-997 | Columbia | VERIZON MARYLAND, INC. |
| 410-998 | Pikesville | VERIZON MARYLAND, INC. |
FAQ
Where is 410-999 located?
The prefix is assigned to the Glen Burnie rate center in MD, area code 410. It is part of the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area.
Which company owns 410-999 numbers?
BALTIMORE-WASHINGTON TELEPHONE (BWT) holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 410-999 safe to answer?
The prefix itself says nothing about the caller. Legitimate Glen Burnie businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.