204.205.21.0/24 IP Address Range

Explore geolocation information for IP ranges, including the start and end addresses and their corresponding CIDR or prefix. See details about the networks and locations associated with each address. Understand how these IPs are organized and distributed across different networks.

IPv4 range intelligence

204.205.21.0/24

Anycast
0 (0.00%)
Responding IPs
0 (0%)
CDN
0 (0.00%)
RPKI valid
100.0%

Summary

204.205.21.0/24 holds 256 addresses spread across 1 country and 1 autonomous system, announced through 1 BGP prefix. The largest single share sits in United States at 100.00%. It is administered by ARIN, with registrations dating from 1994-12-05. 0 addresses answered ping and 0 are served over anycast.

Networks
1
BGP prefixes
1
Countries
1
Pingable IPs
0
Companies
1
Child ranges
0

IP Address Coverage

Mapped
256
Unmapped
0
Total addresses
256

Security

126 flagged addresses — 49.22% of 256 total.

Anonymous
12649.22%
Known attacker
12649.22%
Spam
00.00%
Bot
00.00%
Cloud provider
00.00%
VPN
12649.22%
Residential proxy
00.00%
Proxy
00.00%

Coverage

Address Space

100.0%

of the range is
announced in BGP

Routed
256 100.00%

Regional registry

  • ARIN100.00%

Routing security (RPKI)

100.0%

of announced space
has a valid route origin

Valid
256 100.00%

Autonomous systems

showing 1 of 1

ASNOperatorIPv4 routesIPv6 routesAddresses hereShare
AS174
USCogent Communications, LLC
 4,071 533 256
100.00%

Showing 1 of 1

All IP Ranges

showing 10 of 256

IP AddressFirst IPLast IPNo. of IPs
204.205.21.0 204.205.21.0204.205.21.01
204.205.21.1 204.205.21.1204.205.21.11
204.205.21.2 204.205.21.2204.205.21.21
204.205.21.3 204.205.21.3204.205.21.31
204.205.21.4 204.205.21.4204.205.21.41
204.205.21.5 204.205.21.5204.205.21.51
204.205.21.6 204.205.21.6204.205.21.61
204.205.21.7 204.205.21.7204.205.21.71
204.205.21.8 204.205.21.8204.205.21.81
204.205.21.9 204.205.21.9204.205.21.91