HomePrefix Lookup140.21.0.0/16

140.21.0.0/16

🇺🇸
IPv4ARINallocatedAS721DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD)No ROA
CIDR
140.21.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Columbus
RIR
ARIN
Status
allocated
Allocated
4/8/1990

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
140.21.0.0/16AS721DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD)No ROA—6/15/2026

Covering Prefix

31 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
140.21.240.0/20AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.32.0/20AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.64.0/20AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.148.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.156.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.160.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.164.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.168.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.172.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.176.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.180.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.184.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.188.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.152.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.128.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.132.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.136.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.140.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.144.0/22AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.112.0/23AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.29.0/24AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.56.0/24AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.57.0/24AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.58.0/24AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.60.0/24AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.27.0/24AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.99.0/24AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.116.0/24AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.127.0/24AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.28.0/24AS5852DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)No ROA—6/15/2026
140.21.31.0/24AS27046DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD)No ROA—6/15/2026
Origin ASN
AS721
DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD)
Geolocation
Country🇺🇸United StatesUS
RegionOhio
CityColumbus
Coordinates39.9819, -82.9048 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/140.21.0.0/16

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/140.21.0.0/16" | jq
External Links
RIPEstat Hurricane Electric BGP