Sri Lanka IP Ranges in CIDR format

Updated: 02 August 2025

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IPTables

IPTables - for Linux firewalls

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IPChains

IPChains - for older Linux systems

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Cisco ACL

Cisco ACL - for Cisco routers and switches

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CIDR

CIDR - standard notation for IP ranges

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IPv4 Ranges

Total ranges: 83

43.224.124.0/22
43.228.108.0/22
43.250.240.0/22
43.252.12.0/22
45.121.88.0/22
61.245.160.0/20
101.2.176.0/20
103.1.176.0/22
103.2.148.0/22
103.2.152.0/22
103.11.32.0/22
103.21.164.0/22
103.77.64.0/22
103.84.160.0/22
103.87.12.0/22
103.87.124.0/22
103.96.226.0/23
103.99.100.0/24
103.138.180.0/24
103.140.194.0/23
63 more ranges...

IPv6 Ranges

Total ranges: 26

2001:de9::/48
2001:df0:17::/48
2001:df0:4b80::/48
2001:df1:1600::/48
2001:df1:b380::/48
2001:df2:4ec0::/48
2001:df2:5900::/48
2001:df4:1b00::/48
2400:a240::/32
2400:d040::/32
2400:e2e0::/32
2400:ff00::/32
2401:460::/32
2401:dd00::/32
2402:4000::/32
2402:cb00::/32
2402:cb01::/32
2402:d000::/32
2404:8a00::/32
2404:f000::/32
6 more ranges...

What are IP ranges for Sri Lanka?

IP ranges for Sri Lanka are sets of IP addresses assigned to internet service providers and organizations within Sri Lanka. These addresses are used to connect devices to the internet or internal networks and help identify traffic originating from Sri Lanka.

How to use Sri Lanka IP ranges

IP ranges for Sri Lanka are widely used in network device configurations such as firewalls, routers and switches. You can use these ranges to filter traffic, block unwanted connections from or to Sri Lanka, or allow access only to specific IP addresses from Sri Lanka.

IPv4 and IPv6 ranges for Sri Lanka

Current IPv4 and IPv6 ranges allow you to configure secure and reliable connections with Sri Lanka. You can use these ranges to configure IPTABLES, IPCHAINS and CISCO ACL configurations for network security and access control.

IPv4 Ranges

Total ranges: 83

IPv4 ranges for Sri Lanka include main address blocks used by internet service providers and organizations.

IPv6 Ranges

Total ranges: 26

IPv6 ranges for Sri Lanka represent modern next-generation address blocks for advanced network infrastructure.

Network security tools for Sri Lanka

Want to know which ports and services are open in Sri Lanka? Register on ScaniteX and get free access to network security tools. Start scanning networks in Sri Lanka right now!

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