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CIDR
/21 · 2.0K IPs
ASN
PVimpelCom
Reverse DNS
mail.rdsc.ru
Last scanned 18 hr ago
Blocklisted
Checking…
Scanning blocklists

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

81/100
Trusted
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
mail.rdsc.ru
Forward-confirmed (FCrDNS)
Not checked
PTR TTL
43200 s
Reverse DNS last checked
2026-09-21 20:40 UTC
Forward DNS last checked
2026-09-21 20:40 UTC

Forward DNS records for mail.rdsc.ru

TypeValuePriorityTTL
A 95.163.39.119 60s
MX emx.mail.ru 10
TXT HARICA-ytEv9VCyHZqwQVy9APY
TXT atlassian-sending-domain-verification=91c9a06a-5eeb-4ed5-96fb-f621d1f5f139
TXT google-site-verification=2-Rd7MqIxv5nuRmKpEzmm6RVuTLeWQtPvVlNekb_T2o
TXT mailru-domain: QQlJ9niRbD1L3FMc
TXT mailru-verification: 09cac16d91cbd81d
TXT mailru-verification: 4c2b822fe224c48c
TXT mailru-verification: 5974f57b06d67459
TXT mailru-verification: 880e6f2a4848221f
TXT v=spf1 include:_spf.atlassian.net include:servers.mcsv.net include:_spf.mail.ru include:send-box.ru include:astrum-nival.com include:_spf.amocrmmail.com ~all
TXT yandex-verification: 69de19fbd1511650
TXT yandex-verification: e48d7f7aef162c37
every IP & sub-domain we've seen under this domain

Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.

Reverse DNS history

How this IP's reverse DNS (PTR) has changed over time, from our scans.

  1. mail.rdsc.ru stable — Jul 2, 2026 → present
  2. acc1.rdsc.ru — Jun 29, 2026 → Jul 2, 2026
  3. mail.rdsc.ru — Jun 26, 2026 → Jun 29, 2026
  4. acc1.rdsc.ru stable — Jun 12, 2026 → Jun 26, 2026

Network Allocation for 87.229.237.203

CIDR range
87.229.232.0/21
IP range (int)
1,474,684,928 — 1,474,686,975
Prefix length
/21
Organization
PVimpelCom
ASN
AS3216
ASN name
PVimpelCom
Location
Istra, Moscow Oblast, Russia
Coordinates
55.738600, 37.606800
Accuracy radius
1000 km
Postal code
143502
Regional Internet Registry
RIPE
Allocated
2005-07-22
Data source(s)
maxmind_city, ipinfo_lite, maxmind_asn, maxmind_country
Last updated
2026-07-08 12:20:57

Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.

Announced prefix
Origin AS
Announcement samples
498,810
Last seen
2026-09-22 02:39:42

Frequently Asked Questions

Who owns 87.229.237.203?

87.229.237.203 is allocated to PVimpelCom (AS3216), registered in Istra, Russia.

Where is 87.229.237.203 located?

The geolocation for 87.229.237.203 maps to Istra, Russia based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.

What network is 87.229.237.203 on?

87.229.237.203 belongs to the 87.229.232.0/21 network block announced by AS3216. This range contains 2,048 addresses.

Does 87.229.237.203 have a reverse DNS record?

Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.

Neighbors

Other addresses in the same /24.

Related

Last updated: 2026-09-21 18:03:25 UTC
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