Prefix 612-446 — Twin Cities, MN

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

Area code
612
Prefix (NXX)
446
Rate center
Twin Cities
State
Minnesota
Time zone
Central
Code holder
LEVEL 3 COMMUNICATIONS, LLC - MN
OCN
5256
Pooled
Yes (thousands-block pooling)
Assigned
2020-01-17
LATA
628

The 612-446 prefix belongs to area code 612 and is anchored to the Twin Cities rate center (MN). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

Twin Cities is part of the Minneapolis-St. Paul-Bloomington, MN-WI Metropolitan Statistical Area. For routing purposes it sits in LATA 628. Numbers here keep Central time.

NANPA's central-office code records list LEVEL 3 COMMUNICATIONS, LLC - MN (OCN 5256) as the code holder, assigned January 17, 2020. Because 612-446 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Caller ID showing 612-446 is not proof the call came from Twin Cities: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.

Neighboring prefixes

Prefixes adjacent to 612-446
PrefixRate centerCode holder
612-443 Twin Cities NEW CINGULAR WIRELESS PCS, LLC - IL
612-444 Twin Cities ONVOY, LLC - MN
612-445 Twin Cities EXIANT COMMUNICATIONS LLC
612-447 Twin Cities AERIAL COMMUNICATIONS, INC.
612-448 Twin Cities LEVEL 3 COMMUNICATIONS, LLC - MN
612-449 Twin Cities CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN

FAQ

Where is 612-446 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 612-446 numbers?

LEVEL 3 COMMUNICATIONS, LLC - MN 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 612-446 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.