// ASN
AS4221
DNIC-ASBLK-04214-04221 - United States Department of Defense DoD, US
Detailed information about the Autonomous System. Need another one? Look up a different ASN.
- ASN
- AS4221
- Organization
- United States Department of Defense (DoD)
- Description
- DNIC-ASBLK-04214-04221 - United States Department of Defense DoD, US
- Country
- US
- State / Region
- OH
- City
- Columbus
- Address
- 3990 E. Broad Street
- Registry (RIR)
- ARIN
- Created
- 2007-04-04
- Updated
- 2025-03-13
- IPv4 Prefixes
- 0
- IPv6 Prefixes
- 2
IPv6 Prefixes
2 total2001:480:52::/48 2001:480:95::/48
What is AS4221?
AS4221 is an Autonomous System Number (ASN) assigned to United States Department of Defense (DoD). An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.
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