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CIDR
/20 · 4.1K IPs
ASN
Pronet Telekom Ltd
Reverse DNS
151.237.109.40.pronet.bg
Last scanned 11 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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
151.237.109.40.pronet.bg
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
9600 s
Reverse DNS last checked
2026-07-29 16:34 UTC
Forward DNS last checked
2026-07-29 16:34 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 151.237.109.40

CIDR range
151.237.96.0/20
IP range (int)
2,548,916,224 — 2,548,920,319
Prefix length
/20
Organization
Pronet Telekom Ltd
ASN
AS50186
ASN name
Pronet Telekom Ltd
Location
Novi Iskar, Sofia Capital, Bulgaria
Coordinates
42.800900, 23.355300
Accuracy radius
10 km
Postal code
1780
Regional Internet Registry
RIPE
Allocated
2012-08-16
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-07-28 04:08:36

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

Announced prefix
Origin AS
Announcement samples
5,102
Last seen
2026-07-30 04:19:28

Frequently Asked Questions

Who owns 151.237.109.40?

151.237.109.40 is allocated to Pronet Telekom Ltd (AS50186), registered in Novi Iskar, Bulgaria.

Where is 151.237.109.40 located?

The geolocation for 151.237.109.40 maps to Novi Iskar, Bulgaria 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 151.237.109.40 on?

151.237.109.40 belongs to the 151.237.96.0/20 network block announced by AS50186. This range contains 4,096 addresses.

Does 151.237.109.40 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: 2026-07-30 04:29:10 UTC
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