oracle · ap-tokyo-1

Oracle Cloud Infrastructure uses 38 prefixes for ap-tokyo-1.

Name: Oracle Cloud Infrastructure ap-tokyo-1 IP ranges
Creator: Oracle Cloud Infrastructure

Last updated 5 Nov 2026 from Oracle Cloud Infrastructure’s own list (file dated 2026-10-28T02:47:53.012304)

Short answer

Oracle Cloud Infrastructure lists these prefixes under “ap-tokyo-1”. Oracle Cloud Infrastructure publishes its public ranges per region in public_ip_ranges.json, with tags such as OCI and OSN (Oracle Services Network).

IPv4 prefixes	38
IPv6 prefixes	0
Regions in the first 100	ap-tokyo-1
Fetched by peekip	5 Nov 2026

Prefixes

Prefix	Region / location	Service
131.186.32.0/20	ap-tokyo-1	ap-tokyo-1
131.186.56.0/21	ap-tokyo-1	ap-tokyo-1
132.145.112.0/20	ap-tokyo-1	ap-tokyo-1
132.226.0.0/20	ap-tokyo-1	ap-tokyo-1
134.70.80.0/22	ap-tokyo-1	ap-tokyo-1
138.2.0.0/19	ap-tokyo-1	ap-tokyo-1
138.3.208.0/20	ap-tokyo-1	ap-tokyo-1
140.204.8.128/25	ap-tokyo-1	ap-tokyo-1
140.238.32.0/19	ap-tokyo-1	ap-tokyo-1
140.245.80.0/20	ap-tokyo-1	ap-tokyo-1
140.83.32.0/21	ap-tokyo-1	ap-tokyo-1
140.91.32.0/23	ap-tokyo-1	ap-tokyo-1
141.147.160.0/19	ap-tokyo-1	ap-tokyo-1
146.56.124.128/25	ap-tokyo-1	ap-tokyo-1
146.56.124.64/26	ap-tokyo-1	ap-tokyo-1
146.56.125.0/24	ap-tokyo-1	ap-tokyo-1
146.56.126.0/23	ap-tokyo-1	ap-tokyo-1
150.230.192.0/19	ap-tokyo-1	ap-tokyo-1
150.230.96.0/20	ap-tokyo-1	ap-tokyo-1
151.145.64.0/20	ap-tokyo-1	ap-tokyo-1
152.70.96.0/20	ap-tokyo-1	ap-tokyo-1
155.248.160.0/19	ap-tokyo-1	ap-tokyo-1
158.101.128.0/19	ap-tokyo-1	ap-tokyo-1
158.101.64.0/19	ap-tokyo-1	ap-tokyo-1
158.179.12.128/25	ap-tokyo-1	ap-tokyo-1
158.179.12.64/26	ap-tokyo-1	ap-tokyo-1
158.179.13.0/24	ap-tokyo-1	ap-tokyo-1
158.179.15.0/24	ap-tokyo-1	ap-tokyo-1
158.179.176.0/20	ap-tokyo-1	ap-tokyo-1
161.118.8.0/21	ap-tokyo-1	ap-tokyo-1
161.33.128.0/18	ap-tokyo-1	ap-tokyo-1
161.33.192.0/19	ap-tokyo-1	ap-tokyo-1
161.33.252.0/24	ap-tokyo-1	ap-tokyo-1
168.110.0.0/18	ap-tokyo-1	ap-tokyo-1
168.138.192.0/19	ap-tokyo-1	ap-tokyo-1
192.29.36.0/22	ap-tokyo-1	ap-tokyo-1
192.29.40.0/21	ap-tokyo-1	ap-tokyo-1
193.123.160.0/20	ap-tokyo-1	ap-tokyo-1

What changed

No prefixes added or removed since we started tracking this list. Changes appear here the day after the provider publishes them.

Allowlist formats

nginx (first 5 prefixes)

allow 131.186.32.0/20;
allow 131.186.56.0/21;
allow 132.145.112.0/20;
allow 132.226.0.0/20;
allow 134.70.80.0/22;
deny all;

iptables (first 5 prefixes)

iptables -A INPUT -s 131.186.32.0/20 -j ACCEPT
iptables -A INPUT -s 131.186.56.0/21 -j ACCEPT
iptables -A INPUT -s 132.145.112.0/20 -j ACCEPT
iptables -A INPUT -s 132.226.0.0/20 -j ACCEPT
iptables -A INPUT -s 134.70.80.0/22 -j ACCEPT

Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.

Sources

Oracle Cloud Infrastructure: published IP ranges · checked 5 Nov 2026
Oracle Cloud Infrastructure documentation