Skip to main content
CIDR
/23 · 512 IPs
ASN
Telstra Limited
Reverse DNS
poo1626066.lnk.telstra.net
Last scanned 19 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)
poo1626066.lnk.telstra.net
Forward-confirmed (FCrDNS)
Not checked
PTR TTL
86400 s
Reverse DNS last checked
2026-08-22 21:53 UTC

Forward DNS records for poo1626066.lnk.telstra.net

TypeValuePriorityTTL
A 101.187.140.156 86400s
A 101.187.140.157 86400s
A 101.187.140.158 86400s
A 101.187.140.159 86400s
A 101.187.140.160 86400s
A 101.187.140.162 86400s
A 101.187.142.123 86400s
A 101.187.142.196 86400s
A 101.187.142.197 86400s
A 101.187.142.198 86400s
A 101.187.142.199 86400s
A 101.187.142.200 86400s
A 101.187.142.201 86400s
A 101.187.142.202 86400s
A 101.187.142.218 86400s
A 101.187.142.248 86400s
A 101.187.142.99 86400s
A 101.187.143.125 86400s
A 101.187.143.252 86400s
A 110.142.232.167 86400s
A 139.130.11.221 86400s
A 149.135.27.39 86400s
A 149.135.36.251 86400s
A 149.135.40.243 86400s
A 203.45.20.30 86400s
A 203.45.20.90 86400s
A 203.45.209.85 86400s
A 203.45.209.98 86400s
A 203.45.220.144 86400s
A 203.45.54.119 86400s
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 203.45.220.144

CIDR range
203.45.220.0/23
IP range (int)
3,408,780,288 — 3,408,780,799
Prefix length
/23
Organization
Telstra Limited
ASN
AS1221
ASN name
Telstra Limited
Location
Brisbane, Queensland, Australia
Coordinates
-27.468300, 153.032200
Accuracy radius
20 km
Postal code
4000
Regional Internet Registry
APNIC
Allocated
1994-09-02
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-08-23 05:26:27

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

Announced prefix
Origin AS
Announcement samples
16,945
Last seen
2026-08-23 16:59:55

Frequently Asked Questions

Who owns 203.45.220.144?

203.45.220.144 is allocated to Telstra Limited (AS1221), registered in Brisbane, Australia.

Where is 203.45.220.144 located?

The geolocation for 203.45.220.144 maps to Brisbane, Australia 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 203.45.220.144 on?

203.45.220.144 belongs to the 203.45.220.0/23 network block announced by AS1221. This range contains 512 addresses.

Does 203.45.220.144 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: 2026-08-23 17:09:49 UTC
Share