Autonomous System
AS42343 Karjaan Puhelin Oy
ISPActiveFinlandRIPE
AS42343 (KTAB-AS) is an ISP network operated by Karjaan Puhelin Oy in Finland, registered with RIPE. It has 4 IPv4 prefixes with 20,480 addresses and 1 IPv6 prefix, which makes it the 6,784th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses20,480in 4 prefixes
IPv6 prefixes1≈ 6.3 × 10²⁹ addresses
Size rank#6,784of 82,200 active ASNs
Details
OrganizationKarjaan Puhelin Oy
AS nameKTAB-AS
Websitektab.fi
Country Finland (FI)
Network typeISP
RegistryRIPE
Abuse contactabuse@ktab.fi
Registered2007-02-06
Last updated2026-07-06
IPv4 prefixes
4 prefixes · 20,480 addresses| Network | Addresses | First – last address |
|---|---|---|
| 91.150.0.0/18 | 16,384 | 91.150.0.0 – 91.150.63.255 |
| 84.240.96.0/21 | 2,048 | 84.240.96.0 – 84.240.103.255 |
| 93.91.188.0/22 | 1,024 | 93.91.188.0 – 93.91.191.255 |
| 185.141.96.0/22 | 1,024 | 185.141.96.0 – 185.141.99.255 |
91.150.0.0/18 84.240.96.0/21 93.91.188.0/22 185.141.96.0/22
IPv6 prefixes
1 prefix- 2a04:b080::/29
2a04:b080::/29
Query AS42343 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS42343&key=YOUR_API_KEY"Any address in its prefixes resolves to AS42343, with or without a key:
curl "https://api.ipapi.is/?q=91.150.0.1"