203.100.0.0/16 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

203.100.0.0/16

Anycast
0 (0.00%)
Responding /24s
75 (of 256)
CDN
0 (0.00%)
RPKI valid
58.2%

Summary

203.100.0.0/16 holds 65,536 addresses spread across 11 countries and 19 autonomous systems, announced through 40 BGP prefixes. The largest single share sits in China at 32.42%. It is administered by APNIC, with registrations dating from 1998-02-25. 6,755 addresses answered ping and 0 are served over anycast.

Networks
19
BGP prefixes
40
Countries
11
Pingable IPs
6,755
Companies
19
Child ranges
256

IP Address Coverage

Mapped
65,536
Unmapped
0
Total addresses
65,536

Security

13,858 flagged addresses — 21.15% of 65,536 total.

Anonymous
1,0431.59%
Known attacker
9431.44%
Spam
1<0.01%
Bot
1<0.01%
Cloud provider
13,84021.12%
VPN
9381.43%
Residential proxy
2400.37%
Proxy
1,0351.58%

Coverage

Address Space

71.1%

of the range is
announced in BGP

Routed
46,592 71.09%
Assigned, not routed
18,944 28.91%

Regional registry

  • APNIC93.75%
  • RIPE NCC6.25%

Routing security (RPKI)

58.2%

of announced space
has a valid route origin

Valid
27,136 58.24%
No ROA
19,456 41.76%

Autonomous systems

showing 10 of 19

ASNOperatorIPv4 routesIPv6 routesAddresses hereShare
AS1221
AUTelstra Limited
 277 2 8,192
17.58%
AS17839
KRLG HelloVision Corp.
 125 0 8,192
17.58%
AS24436
AUUniversity of Queensland
 24 1 8,192
17.58%
AS137718
CNBeijing Volcano Engine Technology Co., Ltd.
 216 5 8,192
17.58%
AS23724
CNChina Telecom Corporation Limited
 835 84 5,120
10.99%
AS18779
USEGIHosting
 790 18 2,048
4.40%
AS9430
INSector 29, Noida,Uttar Pradesh.PIN 201303
 35 4 1,280
2.75%
AS24515
INSoftware Technology Parks of India Jaipur
 8 6 1,024
2.20%
AS35758
ILRachamim Aviel Twito
 30 5 1,024
2.20%
AS11404
USWave Broadband
 1,840 6 768
1.65%

Showing 10 of 10

All IP Ranges

showing 10 of 256

PrefixFirst IPLast IPNo. of IPsPingableAnycastBogon / special‑useCategory
203.100.0.0/24 203.100.0.0203.100.0.255256 228.59% 0 0 Pingable
203.100.1.0/24 203.100.1.0203.100.1.255256 10039.06% 0 0 Pingable
203.100.2.0/24 203.100.2.0203.100.2.255256 7930.86% 0 0 Pingable
203.100.3.0/24 203.100.3.0203.100.3.255256 5119.92% 0 0 Pingable
203.100.4.0/24 203.100.4.0203.100.4.255256 4216.41% 0 0 Pingable
203.100.5.0/24 203.100.5.0203.100.5.255256 4417.19% 0 0 Pingable
203.100.6.0/24 203.100.6.0203.100.6.255256 6826.56% 0 0 Pingable
203.100.7.0/24 203.100.7.0203.100.7.255256 228.59% 0 0 Pingable
203.100.8.0/24 203.100.8.0203.100.8.255256 13251.56% 0 0 Pingable
203.100.9.0/24 203.100.9.0203.100.9.255256 4818.75% 0 0 Pingable