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CIDR
/20 · 4.1K IPs
ASN
JSC ER-Telecom Holding
Reverse DNS
37x112x238x249.dynamic.rostov.ertelecom.ru
Last scanned 15 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.

78/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
37x112x238x249.dynamic.rostov.ertelecom.ru
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
3600 s
Reverse DNS last checked
2026-07-18 19:45 UTC
Forward DNS last checked
2026-07-18 19:45 UTC
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.

Network Allocation for 37.112.238.249

CIDR range
37.112.224.0/20
IP range (int)
628,154,368 — 628,158,463
Prefix length
/20
Organization
JSC ER-Telecom Holding
ASN
AS57378
ASN name
JSC ER-Telecom Holding
Location
Rostov-on-Don, Rostov Oblast, Russia
Coordinates
47.235900, 39.713400
Accuracy radius
20 km
Postal code
344000
Regional Internet Registry
RIPE
Allocated
2012-02-09
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-07-11 09:19:56

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

Announced prefix
Origin AS
Announcement samples
5,586
Last seen
2026-07-18 19:44:12

Frequently Asked Questions

Who owns 37.112.238.249?

37.112.238.249 is allocated to JSC ER-Telecom Holding (AS57378), registered in Rostov-on-Don, Russia.

Where is 37.112.238.249 located?

The geolocation for 37.112.238.249 maps to Rostov-on-Don, 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 37.112.238.249 on?

37.112.238.249 belongs to the 37.112.224.0/20 network block announced by AS57378. This range contains 4,096 addresses.

Does 37.112.238.249 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: 2026-07-18 10:50:50 UTC
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