Sri Lanka
IP address space, AS numbers and the largest networks registered in Sri Lanka, based on the delegation records of the regional internet registries.
IPv4 addresses
563.5k
82 blocks
IPv6 allocations
25
AS numbers
32
Routed AS numbers
23
Largest networks in Sri Lanka
By announced prefixes| AS | Name | IPv4 prefixes | IPv6 prefixes |
|---|---|---|---|
| AS18001 | DIALOG-AS Dialog Axiata PLC. | 119 | 130 |
| AS9329 | SLTINT-AS-AP Sri Lanka Telecom Internet | 172 | 10 |
| AS5087 | LANKA-COM Lanka Communication Services | 89 | 1 |
| AS45356 | MOBITEL-LK Mobitel Pvt Ltd | 45 | 5 |
| AS17470 | HUTCHISON-LK Hutchison Telecommunications Lanka (Private) Limited | 16 | 11 |
| AS132447 | HUTCHISON-LK 234, Galle Road, Colombo 4 | 8 | 12 |
| AS38229 | LEARN-LK Lanka Education & Research Network, NREN | 7 | 1 |
| AS18066 | TCLL-AS-AP Tata Communications Lanka Ltd | 5 | 0 |
| AS138984 | SLT-NW2 Sri Lanka Telecom Ltd | 4 | 0 |
| AS17904 | SLTASUL-LK Sri Lankan Airlines | 4 | 0 |
| AS133051 | CBOCP-AS-AP COMMERCIAL BANK OF CEYLON PLC | 4 | 0 |
| AS132124 | ICTA-LK Information and Communication Technology Agency of Sri Lanka | 3 | 0 |
| AS45489 | SLT-GLOBAL Sri Lanka Telecom PLC, GLobal Peering | 1 | 1 |
| AS139032 | NTBP-AS-AP Nations Trust Banks Plc | 2 | 0 |
| AS134824 | TEKKI-AS-AP Tekki Pvt Ltd | 2 | 0 |
| AS204307 | RISHIKESHAN Rishikeshan Lavakumar | 0 | 2 |
| AS131218 | INNODATA-ISOGEN-AS-LK Innodata Lanka Pvt Ltd | 1 | 0 |
| AS139731 | HNBP-AS-AP Hatton National Bank PLC | 1 | 0 |
| AS151197 | OITPL-AS-AP OREL I T Private Limited | 1 | 0 |
| AS151485 | CEB-AS-AP CEYLON ELECTRICITY BOARD | 1 | 0 |
| AS152325 | LANKAPAY-AS-AP LankaPay Pvt Ltd | 1 | 0 |
| AS153563 | OITPL-AS-AP OREL I T Private Limited | 1 | 0 |
| AS136934 | BOC-AS-AP Bank Of Ceylon | 1 | 0 |
Delegations by registry: APNIC 106, RIPE 1. Updated 2026-10-06.