Autonomous System
AS15991 Swedish Tax Agency
GovernmentActiveSwedenRIPE
AS15991 (Swedish_Tax_Agency) is a government network operated by Swedish Tax Agency in Sweden, registered with RIPE. It has 1 IPv4 prefix with 65,536 addresses and 1 IPv6 prefix, which makes it the 3,662nd largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses65,536in 1 prefix
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#3,662of 82,200 active ASNs
Details
OrganizationSwedish Tax Agency
AS nameSwedish_Tax_Agency
Websiteskatteverket.se
Country Sweden (SE)
Network typeGovernment
RegistryRIPE
Abuse contactabuse@skatteverket.se
Registered1970-01-01
Last updated2025-03-21
IPv4 prefixes
1 prefix · 65,536 addresses| Network | Addresses | First – last address |
|---|---|---|
| 137.61.0.0/16 | 65,536 | 137.61.0.0 – 137.61.255.255 |
137.61.0.0/16
IPv6 prefixes
1 prefix- 2a03:b100::/32
2a03:b100::/32
Query AS15991 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=AS15991&key=YOUR_API_KEY"Any address in its prefixes resolves to AS15991, with or without a key:
curl "https://api.ipapi.is/?q=137.61.0.1"