Location, ISP, ASN, timezone and coordinates for 207.57.123.131.
This is the IP address of NTT America, Inc. (United States Colorado Englewood, AS139659).
This address does not match a known network type. Combine historical access patterns and contextual signals for a comprehensive judgment.
Independent offline databases (ip2region vs GeoLite2) may disagree on an IP's location; both are third-party judgments for reference only. The page's primary location prefers ip2region.
Data source: ip2region+GeoLite2 (local offline databases)
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IP History Archive
- 2026-10-31 美国 科罗拉多州 Englewood NTT America, Inc. · AS139659 Botnet / compromised
- 2026-10-29 美国 科罗拉多州 Englewood NTT America, Inc. · AS139659 Spam source
Deep Analysis
AS139659（LUCIDACLOUD LIMITED） (NTT America, Inc.) manages the 207.57.120.0/22 prefix block (approximately 1024 addresses) in the Other category. AS139659 independently controls its routing policy, peering relationships and IP allocation — NTT America, Inc. is directly responsible for traffic to and from addresses in the 207.57.120.0/22 block. The IP 207.57.123.131 resides in United States Colorado Englewood (timezone America/Chicago); its position within this block determines routing behavior and connectivity characteristics.
No reverse DNS (PTR) record is configured, which is common for dynamically assigned or CGNAT'd addresses but limits reverse verification capability. PTR records are commonly used by mail servers and anti-spam systems to validate connecting IPs — their absence can affect deliverability to strict receivers.
Spamhaus has listed this IP (XBL: 僵尸网络 / 被攻陷主机), which suggests it has been involved in spam or compromised activity. While a listing does not guarantee ongoing abuse, it can impact deliverability and trust score. Balance risk-control with normal access patterns: standard rate limiting plus CAPTCHA on sensitive flows.
Recommendation: insufficient data to classify 207.57.123.131 — 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.
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