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CIDR
/23 · 512 IPs
ASN
Florian Kolb
Reverse DNS
osctrcx.com
Last scanned 17 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.

75/100
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)
osctrcx.com
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
120 s
Reverse DNS last checked
2026-09-23 06:15 UTC
Forward DNS last checked
2026-09-23 06:15 UTC

Forward DNS records for osctrcx.com

TypeValuePriorityTTL
MX mailserver.osctrcx.com 10
MX route1.mx.cloudflare.net 27 300s
MX route2.mx.cloudflare.net 16 300s
MX route3.mx.cloudflare.net 14 300s
NS lewis.ns.cloudflare.com
NS megan.ns.cloudflare.com
TXT google-site-verification=jGW-ee78cjsb8FaI0dPZzAo6kVTLg9tNNJK6kdDt43w 300s
TXT v=DMARC1; p=none; rua=mailto:dmarc@smtp-staging.mailtrap.net; ruf=mailto:dmarc@smtp-staging.mailtrap.net; rf=afrf; pct=100
TXT v=spf1 include:_spf.mx.cloudflare.net ~all 300s
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 45.90.99.147

CIDR range
45.90.98.0/23
IP range (int)
760,898,048 — 760,898,559
Prefix length
/23
Organization
Florian Kolb
ASN
AS58087
ASN name
Florian Kolb
Location
Germany
Coordinates
51.299300, 9.491000
Accuracy radius
200 km
Regional Internet Registry
RIPE
Allocated
2019-06-24
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-08-09 13:24:05

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

Announced prefix
Origin AS
Announcement samples
16,743
Last seen
2026-09-23 10:55:56

RIR Ownership History

Atom feed ⇲

Allocation changes captured weekly from regional internet registry (RIR) delegation files for ranges that have contained this IP.

Date Event From To
2026-05-10 New Allocation DE

See the full history for 45.90.98.0/23.

Frequently Asked Questions

Who owns 45.90.99.147?

45.90.99.147 is allocated to Florian Kolb (AS58087), registered in Germany.

Where is 45.90.99.147 located?

The geolocation for 45.90.99.147 maps to Germany 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 45.90.99.147 on?

45.90.99.147 belongs to the 45.90.98.0/23 network block announced by AS58087. This range contains 512 addresses.

Does 45.90.99.147 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: 2026-09-23 01:44:56 UTC
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