All-in-one IPv4 / IPv6 Address Lookup

AS1257（Tele2 SWIPnet） (Tele2 Sverige AB) manages the 37.197.0.0/20 prefix block (approximately 4096 addresses) in the Other category. AS1257 independently controls its routing policy, peering relationships and IP allocation — Tele2 Sverige AB is directly responsible for traffic to and from addresses in the 37.197.0.0/20 block. The IP 37.197.9.123 resides in Sweden Vaestra Goetaland (timezone Europe/Stockholm); its position within this block determines routing behavior and connectivity characteristics.

The reverse DNS record resolves to m37-197-9-123.cust.tele2.se, which is consistent with the registered provider. This alignment with the registered provider is favorable for email deliverability and system trust scores.

Based on local classification and Spamhaus real-time reputation, no blacklist entries detected, no security risk flags detected. The Unknown category indicates this IP is part of normal Other infrastructure and carries low inherent risk. Balance risk-control with normal access patterns: standard rate limiting plus CAPTCHA on sensitive flows.

Recommendation: insufficient data to classify 37.197.9.123 — apply a balanced policy: standard rate limiting, CAPTCHA for sensitive operations, and monitor access logs for anomalies. Reassess as the IP's usage history accumulates in this site's archive.