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Organization

Telstra Limited

IPv4 addresses
13,463,552
CIDR ranges
298
Category
isp
BGP prefixes announced
303

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.

70/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Isp allocation +5
  • Trust score 70 / 100

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

About Telstra

Telstra Group Limited is an Australian telecommunications company that builds and operates telecommunications networks and markets related products and services. It is a member of the S&P/ASX 20 stock index, and is Australia's largest telecommunications company by market share.

Founded
1975
Headquarters
Melbourne
Industry
telecommunications
Employees
31,931

Operates 2 networks present at 2 internet exchanges with a selective peering policy.

Telstra Limited — global IP footprint

Cities where Telstra Limited has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

Countries served by Telstra Limited

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by Telstra Limited

ASNNameIPsPrefixesCountry
AS1221 Telstra Limited 13.39M 287 AU
AS132029 Telstra Limited 74.5K 10 AU
AS133859 Telstra Limited 256 1 AU

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
1.128.0.0/11 2.10M
8.8%
AS1221 AU New South Wales Sydney
1.128.0.0/12 1.05M
0.0%
AS1221 AU New South Wales Sydney
58.160.0.0/12 1.05M
67.8%
AS1221 AU Western Australia Perth
101.176.0.0/12 1.05M
85.4%
AS1221 AU Western Australia Perth
121.208.0.0/12 1.05M
85.9%
AS1221 AU Victoria Melbourne
124.176.0.0/12 1.05M
84.7%
AS1221 AU Queensland Mount Mee
1.120.0.0/13 524.3K
46.5%
AS1221 AU South Australia Adelaide
1.128.0.0/13 524.3K
0.0%
AS1221 AU Victoria Melbourne
1.144.0.0/13 524.3K
0.0%
AS1221 AU New South Wales Sydney
60.224.0.0/13 524.3K
72.5%
AS1221 AU Queensland Townsville
101.168.0.0/13 524.3K
35.7%
AS1221 AU South Australia Adelaide
110.144.0.0/13 524.3K
82.6%
AS1221 AU Queensland Brisbane
120.144.0.0/13 524.3K
80.0%
AS1221 AU Western Australia Perth
203.40.0.0/13 524.3K
19.4%
AS1221 AU Victoria Melbourne
1.136.0.0/14 262.1K
0.0%
AS1221 AU Queensland Toowoomba
1.152.0.0/14 262.1K
0.0%
AS1221 AU Victoria Melbourne
101.160.0.0/14 262.1K
85.0%
AS1221 AU Victoria Melbourne
110.140.0.0/14 262.1K
49.0%
AS1221 AU Victoria Melbourne
120.152.0.0/14 262.1K
84.7%
AS1221 AU Queensland Brisbane
144.132.0.0/14 262.1K
54.6%
AS1221 AU Victoria Melbourne
203.36.0.0/14 262.1K
5.4%
AS1221 AU Victoria Melbourne
203.48.0.0/14 262.1K
29.2%
AS1221 AU Queensland Brisbane
1.142.0.0/15 131.1K
0.0%
AS1221 AU South Australia Adelaide
1.156.0.0/15 131.1K
47.9%
AS1221 AU Australian Capital Territory Canberra
101.164.0.0/15 131.1K
95.9%
AS1221 AU Queensland Brisbane
120.156.0.0/15 131.1K
49.3%
AS1221 AU Victoria Melbourne
123.210.0.0/15 131.1K
49.3%
AS1221 AU New South Wales Sydney
144.136.0.0/15 131.1K
84.1%
AS1221 AU New South Wales Sydney
203.52.0.0/15 131.1K
5.5%
AS1221 AU New South Wales Byron Bay
1.141.0.0/16 65.5K
0.0%
AS1221 AU New South Wales Sydney
1.158.0.0/16 65.5K
94.4%
AS1221 AU New South Wales Sydney
101.103.0.0/16 65.5K
95.7%
AS1221 AU Queensland Townsville
101.166.0.0/16 65.5K
72.9%
AS1221 AU New South Wales Sydney
120.158.0.0/16 65.5K
73.9%
AS1221 AU Victoria Melbourne
123.209.0.0/16 65.5K
0.0%
AS1221 AU Victoria Melbourne
125.255.0.0/16 65.5K
0.0%
AS1221 AU Victoria Melbourne
137.147.0.0/16 65.5K
98.4%
AS1221 AU Victoria Melbourne
138.130.0.0/16 65.5K
89.0%
AS1221 AU New South Wales Sydney
138.217.0.0/16 65.5K
37.0%
AS1221 AU Queensland Brisbane
139.130.0.0/16 65.5K
38.4%
AS1221 AU Victoria Melbourne
139.134.0.0/16 65.5K
0.0%
AS1221 AU
139.168.0.0/16 65.5K
77.1%
AS1221 AU Australian Capital Territory Canberra
143.238.0.0/16 65.5K
80.1%
AS1221 AU New South Wales Sydney
144.131.0.0/16 65.5K
73.8%
AS1221 AU Victoria Melbourne
144.139.0.0/16 65.5K
20.4%
AS1221 AU Victoria Melbourne
144.140.0.0/16 65.5K
1.3%
AS1221 AU Victoria Melbourne
147.69.0.0/16 65.5K
98.4%
AS1221 AU Western Australia Perth
147.211.0.0/16 65.5K
0.0%
AS132029 AU Australian Capital Territory Canberra
149.135.0.0/16 65.5K
12.2%
AS1221 AU Queensland Brisbane
165.228.0.0/16 65.5K
28.1%
AS1221 AU South Australia Adelaide
203.35.0.0/16 65.5K
3.0%
AS1221 AU Victoria Melbourne
203.54.0.0/16 65.5K
21.8%
AS1221 AU Victoria Melbourne
1.140.128.0/17 32.8K
0.0%
AS1221 AU South Australia Adelaide
1.159.128.0/17 32.8K
91.9%
AS1221 AU Western Australia Perth
61.9.128.0/17 32.8K
82.4%
AS1221 AU Victoria Melbourne
101.167.0.0/17 32.8K
95.6%
AS1221 AU Queensland Mackay
144.130.0.0/17 32.8K
14.5%
AS1221 AU Queensland Brisbane
203.58.128.0/17 32.8K
0.9%
AS1221 AU Queensland Brisbane
1.140.0.0/18 16.4K
0.0%
AS1221 AU Victoria Melbourne
1.159.64.0/18 16.4K
93.9%
AS1221 AU Victoria Melbourne
144.130.192.0/18 16.4K
0.6%
AS1221 AU
202.12.128.0/18 16.4K
0.7%
AS1221 AU
203.27.128.0/18 16.4K
37.7%
AS1221 AU Victoria Melbourne
203.58.64.0/18 16.4K
1.3%
AS1221 AU Victoria Melbourne
203.143.192.0/18 16.4K
0.0%
AS1221 AU
1.140.64.0/19 8.2K
0.0%
AS1221 AU Victoria Melbourne
1.159.32.0/19 8.2K
93.4%
AS1221 AU Victoria Melbourne
61.8.0.0/19 8.2K
23.1%
AS1221 AU Victoria Melbourne
101.167.128.0/19 8.2K
0.3%
AS1221 AU Victoria Melbourne
101.167.224.0/19 8.2K
0.7%
AS1221 AU Australian Capital Territory Canberra
144.130.160.0/19 8.2K
23.3%
AS1221 AU Victoria Melbourne
192.74.160.0/19 8.2K
0.0%
AS1221 AU
192.148.128.0/19 8.2K
0.9%
AS1221 AU
202.7.64.0/19 8.2K
0.0%
AS1221 AU
202.12.192.0/19 8.2K
0.0%
AS1221 AU
203.58.32.0/19 8.2K
11.9%
AS1221 AU New South Wales Sydney
203.100.224.0/19 8.2K
0.0%
AS1221 AU
210.23.128.0/19 8.2K
25.2%
AS1221 AU Victoria Melbourne
1.140.96.0/20 4.1K
0.0%
AS1221 AU New South Wales Sydney
1.159.0.0/20 4.1K
91.6%
AS1221 AU Victoria Melbourne
101.167.160.0/20 4.1K
46.3%
AS1221 AU Victoria Melbourne
144.130.144.0/20 4.1K
0.0%
AS1221 AU New South Wales Bringelly
192.74.144.0/20 4.1K
0.0%
AS1221 AU
192.74.192.0/20 4.1K
0.0%
AS1221 AU
202.1.240.0/20 4.1K
0.1%
AS1221 PG
202.12.224.0/20 4.1K
0.4%
AS1221 AU
203.2.240.0/20 4.1K
0.0%
AS132029 AU
203.14.0.0/20 4.1K
14.1%
AS1221 AU
203.18.112.0/20 4.1K
35.1%
AS1221 AU
203.29.160.0/20 4.1K
0.0%
AS1221 AU
1.140.120.0/21 2.0K
0.0%
AS1221 AU New South Wales Sydney
1.159.16.0/21 2.0K
92.3%
AS1221 AU Victoria Melbourne
115.178.104.0/21 2.0K
0.4%
AS132029 AU
192.148.120.0/21 2.0K
6.8%
AS1221 AU
203.12.144.0/21 2.0K
0.0%
AS1221 AU
203.17.40.0/21 2.0K
0.0%
AS1221 AU
203.21.192.0/21 2.0K
0.0%
AS1221 AU
203.62.248.0/21 2.0K
7.5%
AS1221 AU
1.140.112.0/22 1.0K
0.0%
AS1221 AU New South Wales Sydney
1.159.24.0/22 1.0K
93.6%
AS1221 AU Victoria Melbourne

Frequently Asked Questions

How many IP addresses does Telstra Limited own?

Telstra Limited controls 13.46M IPv4 addresses distributed across 298 CIDR ranges. The organization is registered in Australia.

What ASNs does Telstra Limited operate?

Telstra Limited operates 3 Autonomous Systems. Each ASN represents an independently routed network that Telstra Limited manages for internet traffic delivery.

What type of organization is Telstra Limited?

Telstra Limited is categorized as isp. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-07-18 12:40:28 UTC
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