140.207.90.254
An address in Shanghai, China, used by CHINA UNICOM Shanghai city network, announced by China Unicom Shanghai network (AS17621). It's a VPN exit, mobile carrier space of China Unicom, a mail server on port 587, and a web server on ports 80 and 443.
Summary
Geolocation
Where the address is, and what that place uses.
- City
- Shanghai
- Region
- Shanghai
- Postal code
- 200000
- Country
- China
- Continent
- Asia
- Coordinates
- 31.2222, 121.4581
- Timezone
- Asia/Shanghai
Ownership
Who holds the address: the AS announcing it, the registry record, the abuse contact and its name in DNS.
- Company
- CHINA UNICOM Shanghai city network
- Domain
- chinaunicom.cn
- Type
- ISP
- Registered in
- China
- AS number
- AS17621
- Name
- China Unicom Shanghai network
- Prefix
- 140.207.0.0/16
- RPKI
- Valid
- Type
- ISP
- Domain
- chinaunicom.cn
- Registered in
- China
- Name
- CHINA UNICOM Shanghai city network
- Network name
- UNICOM-SH
- Status
- ALLOCATED PORTABLE
- Registry
- APNIC
- Domain
- chinaunicom.cn
- Name
- ABUSE CUCN
- Address
- No.21,Financial Street, Beijing,100033, P.R.China
- Network
- 140.206.0.0-140.207.255.255
Anonymity
Whether the address hides someone else: a VPN, Tor, a relay, a proxy pool, or a hosting range.
Network
What kind of network it is on: a mobile carrier, a satellite operator, an anycast service, a CDN edge.
Services
What our own internet-wide measurement found listening on it.
- Port
- 587
- Banner
- 220 mail.wheatek.com Microsoft ESMTP MAIL Service ready at Sat, 31 Oct 2026 04:24:43 +0800
- Greeting
- Completed
- First seen
- 2026-08-12
- Last seen
- 2026-10-24
- 80 status
- 403
- 80 server
- Microsoft-IIS/7.5
- 80 title
- 403 - 禁止访问: 访问被拒绝。
- 80 seen
- 2026-08-09 to 2026-10-29
- 443 status
- 200
- 443 server
- Microsoft-IIS/7.5
- 443 title
- IIS7
- 443 TLS
- TLSv1.0
- 443 certificate
- mail01
- 443 issuer
- CN=mail01
- 443 browser-trusted
- No
- 443 seen
- 2026-08-14 to 2026-11-05
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