The IP API The IP API
// ASN

AS3372

MCI-ASN - Verizon Business, US

Detailed information about the Autonomous System. Need another one? Look up a different ASN.

ASN
AS3372
Organization
Verizon Business
Description
MCI-ASN - Verizon Business, US
Country
US
State / Region
VA
City
Ashburn
Address
22001 Loudoun County Pkwy
Registry (RIR)
ARIN
Created
2007-03-21
Updated
2025-10-28
IPv4 Prefixes
107
IPv6 Prefixes
1

IPv4 Prefixes

107 total · showing first 10
108.11.64.0/18
151.205.32.0/19
165.122.0.0/16
165.122.0.0/19
165.122.160.0/19
166.32.0.0/20
166.32.128.0/19
166.32.16.0/20
166.32.160.0/20
166.32.240.0/20

IPv6 Prefixes

1 total
2600:40f3::/32

What is AS3372?

AS3372 is an Autonomous System Number (ASN) assigned to Verizon Business. An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.

Looking for more ASN data?

Use our ASN Lookup Tool for real-time WHOIS queries, or explore our API documentation to integrate ASN data into your applications.