221.128.0.0/16 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

221.128.0.0/16

Anycast
0 (0.00%)
Responding /24s
24 (of 256)
CDN
0 (0.00%)
RPKI valid
84.7%

Summary

221.128.0.0/16 holds 65,536 addresses spread across 5 countries and 3 autonomous systems, announced through 71 BGP prefixes. The largest single share sits in China at 49.97%. It is administered by APNIC, with registrations dating from 2003-08-19. 616 addresses answered ping and 0 are served over anycast.

Networks
3
BGP prefixes
71
Countries
5
Pingable IPs
616
Companies
3
Child ranges
256

IP Address Coverage

Mapped
65,536
Unmapped
0
Total addresses
65,536

Security

32,770 flagged addresses — 50.00% of 65,536 total.

Anonymous
430.07%
Known attacker
32,76850.00%
Spam
2<0.01%
Bot
00.00%
Cloud provider
5,8888.98%
VPN
410.06%
Residential proxy
410.06%
Proxy
410.06%

Coverage

Address Space

58.6%

of the range is
announced in BGP

Routed
38,400 58.59%
Assigned, not routed
27,136 41.41%

Regional registry

  • APNIC100.00%

Routing security (RPKI)

84.7%

of announced space
has a valid route origin

Valid
32,512 84.67%
No ROA
5,888 15.33%

Autonomous systems

showing 3 of 3

ASNOperatorIPv4 routesIPv6 routesAddresses hereShare
AS4637
HKTelstra International Limited
 666 107 23,040
60.00%
AS4765
THPacific Internet Pte. Ltd.
 234 4 9,472
24.67%
AS18180
TWTaiwan Network Information Center
 17 0 5,888
15.33%

Showing 3 of 3

All IP Ranges

showing 10 of 256

PrefixFirst IPLast IPNo. of IPsPingableAnycastBogon / special‑useCategory
221.128.0.0/24 221.128.0.0221.128.0.255256 0 0 0 No ping response
221.128.1.0/24 221.128.1.0221.128.1.255256 0 0 0 No ping response
221.128.2.0/24 221.128.2.0221.128.2.255256 0 0 0 No ping response
221.128.3.0/24 221.128.3.0221.128.3.255256 0 0 0 No ping response
221.128.4.0/24 221.128.4.0221.128.4.255256 0 0 0 No ping response
221.128.5.0/24 221.128.5.0221.128.5.255256 0 0 0 No ping response
221.128.6.0/24 221.128.6.0221.128.6.255256 0 0 0 No ping response
221.128.7.0/24 221.128.7.0221.128.7.255256 0 0 0 No ping response
221.128.8.0/24 221.128.8.0221.128.8.255256 0 0 0 No ping response
221.128.9.0/24 221.128.9.0221.128.9.255256 0 0 0 No ping response