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CIDR
/21 · 2.0K IPs
ASN
PERN AS Content Servie Provider, Islamabad, Pakistan
Reverse DNS
kust.edu.pk
Last scanned 7 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)
kust.edu.pk
Forward-confirmed (FCrDNS)
Not checked
PTR TTL
3600 s
Reverse DNS last checked
2026-07-24 02:40 UTC
Forward DNS last checked
2026-07-24 02:40 UTC

Forward DNS records for kust.edu.pk

TypeValuePriorityTTL
A 107.6.142.186 172785s
MX ALT1.ASPMX.L.GOOGLE.COM 5
MX ALT2.ASPMX.L.GOOGLE.COM 5
MX ALT3.ASPMX.L.GOOGLE.COM 10
MX ALT4.ASPMX.L.GOOGLE.COM 10
MX ASPMX.L.GOOGLE.COM 1
NS ns1.greengeeks.net
NS ns2.greengeeks.net
TXT v=DMARC1; p=none;
TXT v=spf1 +a +mx +ip4:107.6.142.186 include:spf.greengeeks.net ~all
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 121.52.146.168

CIDR range
121.52.144.0/21
IP range (int)
2,033,487,872 — 2,033,489,919
Prefix length
/21
Organization
PERN AS Content Servie Provider, Islamabad, Pakistan
ASN
AS45773
ASN name
PERN AS Content Servie Provider, Islamabad, Pakistan
Location
Haripur, Khyber Pakhtunkhwa, Pakistan
Coordinates
33.948500, 73.027200
Accuracy radius
50 km
Postal code
22600
Regional Internet Registry
APNIC
Allocated
2007-11-01
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-07-08 12:21:09

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

Announced prefix
Origin AS
Announcement samples
52,070
Last seen
2026-07-24 09:33:29

Frequently Asked Questions

Who owns 121.52.146.168?

121.52.146.168 is allocated to PERN AS Content Servie Provider, Islamabad, Pakistan (AS45773), registered in Haripur, Pakistan.

Where is 121.52.146.168 located?

The geolocation for 121.52.146.168 maps to Haripur, Pakistan 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 121.52.146.168 on?

121.52.146.168 belongs to the 121.52.144.0/21 network block announced by AS45773. This range contains 2,048 addresses.

Does 121.52.146.168 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: 2026-07-24 09:49:17 UTC
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