Skip to main content
CIDR
/22 · 1.0K IPs
ASN
SmarTone Mobile Communications Ltd
Reverse DNS
m203-78-37-120.smartone.com
Last scanned 12 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)
m203-78-37-120.smartone.com
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
900 s
Reverse DNS last checked
2026-07-23 16:40 UTC
Forward DNS last checked
2026-07-23 16:40 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 203.78.37.120

CIDR range
203.78.36.0/22
IP range (int)
3,410,895,872 — 3,410,896,895
Prefix length
/22
Organization
SmarTone Mobile Communications Ltd
ASN
AS17924
ASN name
SmarTone Mobile Communications Ltd
Location
Hong Kong
Coordinates
22.257800, 114.165700
Accuracy radius
1000 km
Regional Internet Registry
APNIC
Allocated
2001-08-30
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-07-09 00:21:20

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

Announced prefix
Origin AS
Announcement samples
382,882
Last seen
2026-07-24 04:28:17

Frequently Asked Questions

Who owns 203.78.37.120?

203.78.37.120 is allocated to SmarTone Mobile Communications Ltd (AS17924), registered in Hong Kong.

Where is 203.78.37.120 located?

The geolocation for 203.78.37.120 maps to Hong Kong 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 203.78.37.120 on?

203.78.37.120 belongs to the 203.78.36.0/22 network block announced by AS17924. This range contains 1,024 addresses.

Does 203.78.37.120 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 04:45:57 UTC
Share