85.121.123.164

Country / region

Japan · Tokyo · Chiyoda City

IP type

Hosting / data center

Native / broadcast

Broadcast IP

Network

AS9009 Urban Network Solutions SRL

Reverse DNS

none

Devices seen in subnet

7

• −45

  Blocklist hit: Spamhaus ZEN

  SBL — known spam source; PBL — range declared residential/dynamic by the carrier

  What it means

  A Spamhaus listing means this IP was confirmed sending spam, or the machine is compromised and being used as a relay.

  Which uses care

  Cares most: Email sending; Barely looks at it: AI services, Social sign-up, Streaming / short video, Gaming platforms

  Why it is weighted this way

  This is behavioural evidence, not a profile guess, so it is a hard cap and fatal for email. It carries little weight for scenarios that ignore mail reputation, such as AI services.

  Can it be fixed

  Fix the cause first (shut down the compromised service, remove malware), then request removal from Spamhaus; usually resolved within days.

• −25

  IP type: Hosting / data center

  Hosting / data center IPs are the main source of automated traffic

  What it means

  This IP sits in a hosting / datacenter range. Platforms assume real people browse from home or a phone, and machines live in datacenters.

  Which uses care

  Cares most: AI services, Social sign-up, Gaming platforms, Cross-border e-commerce; Barely looks at it: Email sending

  Why it is weighted this way

  The most basic signal there is: scrapers, bulk sign-ups and fake traffic overwhelmingly come from datacenters, so risk systems discount the whole range. It says nothing about what you did, only that you share the range.

  Can it be fixed

  The range type cannot be changed. What helps is not stacking other issues on top: stay off blocklists, close unneeded ports, avoid crowded exits.

• −20

  Known VPN exit

  Only 1 data source flags it as a VPN; the evidence is limited, so it counts at half weight

  What it means

  Commercial risk databases mark this address as a VPN server exit. Platforms see "someone on a VPN", not you.

  Which uses care

  Cares most: AI services, Social sign-up, Streaming / short video, Gaming platforms, Cross-border e-commerce

  Why it is weighted this way

  Only one source says so, and a single database can be wrong (public DNS resolvers have been mislabeled), so it counts at half weight. If a second source follows in a few days, this item doubles.

  Can it be fixed

  Self-hosted proxies on VPS ranges are often labeled block-wide; changing the IP is the only fix. Commercial VPN exits are labeled by design.

• −15

  Broadcast IP

  Range registered in RO but used in JP (announced across borders)

  What it means

  The country the range is registered in differs from where it is actually used. Common when an international host uses a range registered in country A inside country B, or when a proxy vendor leases ranges.

  Which uses care

  Cares most: Streaming / short video, Gaming platforms; Barely looks at it: Email sending

  Why it is weighted this way

  Region-sensitive platforms (streaming, region-locked gaming) care most: they cross-check several geo databases and treat a mismatch as "wrong region". Little effect on scenarios that ignore region.

  Can it be fixed

  This is a registration attribute of the range and cannot be changed by the user. Platforms use different geo databases, so some may not notice at all.

• −12

  Blocklist hit: SpamRats

  Listed by SpamRats

  What it means

  This IP is on a public blocklist. Most lists record addresses that sent spam or took part in scanning or attacks.

  Which uses care

  Cares most: Email sending; Barely looks at it: AI services, Social sign-up, Streaming / short video, Gaming platforms

  Why it is weighted this way

  A single aggregate list is moderate evidence, so about a dozen points; the email scenario more than doubles it because receiving servers query these lists directly.

  Can it be fixed

  Every list has a removal process, provided the cause is gone; some delist automatically after a quiet period.

• −10

  1 open ports

  Includes admin ports 22: clear evidence of a server rather than home broadband

  What it means

  Scanners see ports open on this IP. With admin ports such as 22 or 3389 it is almost certainly a server, not a home router.

  Which uses care

  Barely looks at it: AI services

  Why it is weighted this way

  Mainly corroboration that "this is a server", which the datacenter item already charged for, so only a few points here; AI-type scenarios weight it at 0.3 to avoid charging the same fact three times.

  Can it be fixed

  Close or restrict ports that do not need public access (firewall, non-default port, fail2ban); scanners update within days, then re-check. One of the few items you can change yourself.

• −5

  No rDNS record

  No PTR record; IPs allocated by established carriers usually have one

  What it means

  This IP has no reverse hostname (PTR record). Addresses allocated by established carriers usually have one.

  Which uses care

  Cares most: Email sending

  Why it is weighted this way

  A few points only: a missing PTR is a weak "unknown origin" signal, not a stain. Email cares more, since receiving servers check it.

  Can it be fixed

  Most hosts let you set a PTR in the control panel; set it to a sensible hostname.

• +4

  Very low observed sharing

  Only 7 devices observed in the same subnet

  What it means

  Only a few devices were observed in the same subnet. Your behaviour mostly represents you alone.

  Which uses care

  Cares most: Social sign-up, Streaming / short video, Cross-border e-commerce

  Why it is weighted this way

  A small bonus. This is an observation, not proof of true exclusivity.

  Can it be fixed

  An inherent attribute of the IP or its range; nothing a user can change short of a different IP.

Listed on 2 of 8 blocklists checked: Spamhaus ZEN, SpamRats.

• abuseipdb abuse confidence 0%

Open ports observed: 22

Each platform's internal risk labels

Platforms keep their own IP reputation data and ban records and do not publish them. No hit in public sources does not mean a platform has nothing on this IP.

Whether the IP is truly exclusive

Sharing is only the number of devices observed in the same subnet. It cannot show who else is using this exit right now, or what they are doing.

Which accounts this IP has been tied to

Account-to-IP links exist only inside each platform. Accounts previously banned on this IP are invisible to us.

Device, browser and behaviour

Risk systems look at IP + device fingerprint + behavioural rhythm together. A clean IP with an odd fingerprint or behaviour still gets blocked.

Whether the account profile matches the IP

When sign-up country, phone number, payment method, language or time zone disagree with the IP's location, platforms verify further. That is unrelated to IP purity.

• rdap
  379ms
• team-cymru
  161ms
• ip-api.com
  160ms
• proxycheck.io
  198ms
• abuseipdb
  427ms
• cloud-ranges
  14ms
• tor-exits
  14ms
• rdns
  890ms
• shodan-internetdb
  251ms
• ipwho.is
  174ms
• dnsbl
  220ms

Machine-readable versions of this report: JSON · plain text · 中文报告