APNIC · updated daily
British Indian Ocean Territory IP ranges
2 IPv4 blocks with 3,072 addresses and 1 IPv6 prefixes, registered to British Indian Ocean Territory, the 231st largest IPv4 holding of 239 countries.
IPv4 addresses
3.1K
IPv4 blocks
2
IPv6 prefixes
1
Share of all IPv4
<0.01%
Format
Largest networks in British Indian Ocean Territory
Autonomous systems by the IPv4 addresses they announce inside these ranges.
| Network | ASN | IPv4 addresses | Share |
|---|---|---|---|
| Sure (Diego Garcia) Limited | AS17458 | 3,072 |
ASN data: IP Geolocation by DB-IP (CC BY 4.0).
Largest IPv4 blocks
The biggest single block is 203.83.48.0/21.
| Block | Addresses | Registry | Allocated |
|---|---|---|---|
| 203.83.48.0/21 | 2,048 | APNIC | 2006-01-19 |
| 202.44.112.0/22 | 1,024 | APNIC | 2000-11-16 |
Allocations per year
IPv4 addresses assigned to networks in British Indian Ocean Territory each year, by registration date.
Most recent allocations
| Block | Addresses | Registry | Allocated |
|---|---|---|---|
| 203.83.48.0/21 | 2,048 | APNIC | 2006-01-19 |
| 202.44.112.0/22 | 1,024 | APNIC | 2000-11-16 |
Use the list
curl -s https://proxyspace.pro/Ranges/IO.txt -o IO.txt# Block British Indian Ocean Territory with ipset + iptables
ipset create io4 hash:net
while read net; do ipset add io4 "$net"; done < IO.txt
iptables -I INPUT -m set --match-set io4 src -j DROP
# Is an address in British Indian Ocean Territory? (Python)
import ipaddress
nets = [ipaddress.ip_network(l) for l in open("IO.txt") if l.strip()]
print(any(ipaddress.ip_address("202.44.112.1") in n for n in nets))British Indian Ocean Territory IP ranges: questions
How many IP addresses does British Indian Ocean Territory have?
British Indian Ocean Territory holds 3,072 IPv4 addresses in 2 blocks and 1 IPv6 prefixes, the 231st largest IPv4 holding of 239 countries (under 0.01% of all allocated IPv4). Compare it with other countries on the IP ranges by country page.
Which networks use the most British Indian Ocean Territory IP addresses?
Sure (Diego Garcia) Limited (AS17458, 3.1K addresses). Look up any single address with the IP lookup tool.
How do I block all British Indian Ocean Territory IP addresses?
Download the list above in the format of your firewall: iptables/ipset, nginx, Apache, ufw or MikroTik. Turn on "aggregate" to merge adjacent blocks into fewer rules. The raw list is at /Ranges/IO.txt, one CIDR per line. To inspect a single block use the CIDR calculator.
Who assigns IP addresses in British Indian Ocean Territory?
APNIC, the regional internet registry for Asia-Pacific. ProxySpace downloads its delegation file every day; the most recent British Indian Ocean Territory allocation in it is 2006-01-19.
Are there free proxies in British Indian Ocean Territory?
Not in the current lists. They change every 20 minutes; the proxies by country page shows which countries have proxies right now.