Prefix 410-320 — Annapolis, MD
Numbers in the 410-320 prefix are registered to the Annapolis rate center in MD, inside area code 410. The prefix is the second block of a ten-digit US number (410-320-XXXX) and pins the number to a billing locality.
NANPA's central-office code records list OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (OCN 6855) as the code holder. Because 410-320 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
The rate center lies in the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area. The serving LATA is 238. Local time follows the Eastern zone.
Spoofing means this prefix on your screen doesn't guarantee a Annapolis caller. Verify independently before trusting a request for money or data.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 410-317 | Armiger-gibson Island | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
| 410-318 | Baltimore | VERIZON MARYLAND, INC. |
| 410-319 | Baltimore | VERIZON MARYLAND, INC. |
| 410-321 | Towson | VERIZON MARYLAND, INC. |
| 410-322 | Bel Air | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 410-323 | Baltimore | VERIZON MARYLAND, INC. |
FAQ
Where is 410-320 located?
The prefix is assigned to the Annapolis rate center in MD, area code 410. It is part of the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area.
Which company owns 410-320 numbers?
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 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 410-320 safe to answer?
The prefix itself says nothing about the caller. Legitimate Annapolis businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.