Check an IP Address, Domain Name, Subnet, or ASN

123.138.77.58 was found in our database!

$ whois 123.138.77.58

country·🇨🇳 China

city·Xi'an

isp·CHINA UNICOM China169 Backbone

asn·AS4837

network·Standard

$ sikker risk 123.138.77.58scoring →

confidence

43%Medium

first_seen·Apr 29, 2026

last_seen·1h ago

sessions·1

events·1

$ sikker protocols 123.138.77.58

SIP

1 / 1

$ sikker summary 123.138.77.58

123.138.77.58 has a threat confidence score of 43%. This IP address from China (AS4837, CHINA UNICOM China169 Backbone) has been observed in 1 honeypot sessions targeting SIP protocols. First observed on April 29, 2026, most recently active April 29, 2026.

$ sikker behaviors 123.138.77.58catalog →

mediumSip Request Uri Sip Nm1x

SIP request using sip:nm as the Request-URI, a malformed or placeholder target commonly observed in SIP scanning and fuzzing activity rather than legitimate client behavior.

$ sikker primitives 123.138.77.58

sip_request_uri_sip_nm1

$ sikker related 123.138.77.58

🇨🇳·More threats fromChina→AS·More threats fromCHINA UNICOM China169 Backbone→SIP·More threats targetingSIP→{ }·Browse allAttack Patterns→

Report IP WHOIS Lookup →

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153.101.132.65	100%	819

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117.50.185.119	95%	4,084
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118.145.239.116	55%	4