ARIN · updated daily
Antarctica IP ranges
Antarctica IP ranges3 IPv4 blocks with 1,024 addresses and 1 IPv6 prefixes, registered to Antarctica, the 235th largest IPv4 holding of 239 countries.
IPv4 addresses
1K
IPv4 blocks
3
IPv6 prefixes
1
Share of all IPv4
<0.01%
Format
Largest networks in Antarctica
Autonomous systems by the IPv4 addresses they announce inside these ranges.
| Network | ASN | IPv4 addresses | Share |
|---|---|---|---|
| Windscribe | AS397540 | 512 |
ASN data: IP Geolocation by DB-IP (CC BY 4.0).
Largest IPv4 blocks
The biggest single block is 131.143.220.0/23.
| Block | Addresses | Registry | Allocated |
|---|---|---|---|
| 131.143.220.0/23 | 512 | ARIN | 2025-10-06 |
| 23.154.160.0/24 | 256 | ARIN | 2018-10-17 |
| 209.127.204.0/24 | 256 | ARIN | 2020-01-17 |
Allocations per year
IPv4 addresses assigned to networks in Antarctica each year, by registration date.
Most recent allocations
| Block | Addresses | Registry | Allocated |
|---|---|---|---|
| 131.143.220.0/23 | 512 | ARIN | 2025-10-06 |
| 209.127.204.0/24 | 256 | ARIN | 2020-01-17 |
| 23.154.160.0/24 | 256 | ARIN | 2018-10-17 |
Use the list
curl -s https://proxyspace.pro/Ranges/AQ.txt -o AQ.txt# Block Antarctica with ipset + iptables
ipset create aq4 hash:net
while read net; do ipset add aq4 "$net"; done < AQ.txt
iptables -I INPUT -m set --match-set aq4 src -j DROP
# Is an address in Antarctica? (Python)
import ipaddress
nets = [ipaddress.ip_network(l) for l in open("AQ.txt") if l.strip()]
print(any(ipaddress.ip_address("23.154.160.1") in n for n in nets))Antarctica IP ranges: questions
How many IP addresses does Antarctica have?
Antarctica holds 1,024 IPv4 addresses in 3 blocks and 1 IPv6 prefixes, the 235th 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 Antarctica IP addresses?
Windscribe (AS397540, 512 addresses). Look up any single address with the IP lookup tool.
How do I block all Antarctica 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/AQ.txt, one CIDR per line. To inspect a single block use the CIDR calculator.
Who assigns IP addresses in Antarctica?
ARIN, the regional internet registry for North America. ProxySpace downloads its delegation file every day; the most recent Antarctica allocation in it is 2025-10-06.
Are there free proxies in Antarctica?
Not in the current lists. They change every 20 minutes; the proxies by country page shows which countries have proxies right now.