Prefix 612-438 — Twin Cities, MN

NANPA CO code assignment, current as of July 28, 2026.

Area code
612
Prefix (NXX)
438
Rate center
Twin Cities
State
Minnesota
Time zone
Central
Code holder
AERIAL COMMUNICATIONS, INC.
OCN
6701
Pooled
Yes (thousands-block pooling)
Assigned
2019-06-24
LATA
628

Numbers in the 612-438 prefix are registered to the Twin Cities rate center in MN, inside area code 612. The prefix is the second block of a ten-digit US number (612-438-XXXX) and pins the number to a billing locality.

The assigned code holder is AERIAL COMMUNICATIONS, INC., operating company number 6701, assigned June 24, 2019. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.

The rate center lies in the Minneapolis-St. Paul-Bloomington, MN-WI Metropolitan Statistical Area. The serving LATA is 628. Local time follows the Central zone.

Spoofing means this prefix on your screen doesn't guarantee a Twin Cities caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 612-438
PrefixRate centerCode holder
612-435 Twin Cities MCIMETRO ACCESS TRANSMISSION SERVICES LLC
612-436 Twin Cities ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM
612-437 Twin Cities CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN
612-439 Twin Cities BANDWIDTH.COM CLEC, LLC - MN
612-440 Twin Cities BANDWIDTH.COM CLEC, LLC - MN
612-441 Twin Cities CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN

FAQ

Where is 612-438 located?

The prefix is assigned to the Twin Cities rate center in MN, area code 612. It is part of the Minneapolis-St. Paul-Bloomington, MN-WI Metropolitan Statistical Area.

Which company owns 612-438 numbers?

AERIAL COMMUNICATIONS, INC. 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 612-438 safe to answer?

The prefix itself says nothing about the caller. Legitimate Twin Cities businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.