The IP API The IP API
// ASN

AS21777

MASSIVE-NETWORKS-21777 - Massive Networks, Inc., US

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

ASN
AS21777
Organization
Massive Networks, Inc.
Description
MASSIVE-NETWORKS-21777 - Massive Networks, Inc., US
Country
US
State / Region
CO
City
Louisville
Address
382 S. Arthur Ave.
Registry (RIR)
ARIN
Created
2026-03-11
Updated
2026-03-11
IPv4 Prefixes
63
IPv6 Prefixes
7

IPv4 Prefixes

63 total · showing first 10
192.124.0.0/24
192.188.61.0/24
199.127.200.0/22
199.165.233.0/24
199.189.28.0/23
199.189.30.0/23
199.45.152.0/24
199.45.166.0/24
199.45.236.0/22
199.45.240.0/24

IPv6 Prefixes

7 total
2602:ffc6:100::/40
2602:ffc6:200::/40
2602:ffc6:300::/40
2602:ffc6:400::/40
2602:ffc6:500::/40
2602:ffc6:600::/40
2607:2b80::/32

What is AS21777?

AS21777 is an Autonomous System Number (ASN) assigned to Massive Networks, Inc.. 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.