// ASN
AS21633
DOI-NBC-NET - U.S. Department of the Interior, US
Detailed information about the Autonomous System. Need another one? Look up a different ASN.
- ASN
- AS21633
- Organization
- U.S. Department of the Interior
- Description
- DOI-NBC-NET - U.S. Department of the Interior, US
- Country
- US
- State / Region
- DC
- City
- Washington
- Address
- 1849 C St., N.W.
- Registry (RIR)
- ARIN
- Created
- 2007-03-21
- Updated
- 2025-01-28
- IPv4 Prefixes
- 4
- IPv6 Prefixes
- 0
IPv4 Prefixes
4 total137.227.192.0/21 137.227.96.0/21 205.173.0.0/24 205.173.4.0/24
What is AS21633?
AS21633 is an Autonomous System Number (ASN) assigned to U.S. Department of the Interior. 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.