Addresses
131,072
131.1K
Sub-ranges
20+
within this block
PTR Density
0.0%
0 of 131.1K IPs have PTR
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.
71/100
Moderate
How this score is built
- Baseline (neutral) 65
- Long-established allocation (16y) +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 1.128.0.0/15
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 1.129.128.0/17 | 32.8K | Telstra Limited | AS1221 | AU |
| 1.128.128.0/17 | 32.8K | Telstra Limited | AS1221 | AU |
| 1.128.64.0/18 | 16.4K | Telstra Limited | AS1221 | AU |
| 1.129.0.0/18 | 16.4K | Telstra Limited | AS1221 | AU |
| 1.128.0.0/18 | 16.4K | Telstra Limited | AS1221 | AU |
| 1.128.32.0/19 | 8.2K | Telstra Limited | AS1221 | AU |
| 1.128.64.0/19 | 8.2K | Telstra Limited | AS1221 | AU |
| 1.129.32.0/19 | 8.2K | Telstra Limited | AS1221 | AU |
| 1.128.0.0/19 | 8.2K | Telstra Limited | AS1221 | AU |
| 1.129.64.0/19 | 8.2K | Telstra Limited | AS1221 | AU |
| 1.129.96.0/20 | 4.1K | Telstra Limited | AS1221 | AU |
| 1.129.112.0/20 | 4.1K | Telstra Limited | AS1221 | AU |
| 1.129.16.0/20 | 4.1K | Telstra Limited | AS1221 | AU |
| 1.129.0.0/20 | 4.1K | Telstra Limited | AS1221 | AU |
| 1.128.112.0/20 | 4.1K | Telstra Limited | AS1221 | AU |
| 1.128.96.0/20 | 4.1K | Telstra Limited | AS1221 | AU |
| 1.128.48.0/20 | 4.1K | Telstra Limited | AS1221 | AU |
| 1.128.32.0/20 | 4.1K | Telstra Limited | AS1221 | AU |
| 1.128.16.0/20 | 4.1K | Telstra Limited | AS1221 | AU |
| 1.128.0.0/20 | 4.1K | Telstra Limited | AS1221 | AU |
Geolocation
First 256 of 131,072 IP addresses in 1.128.0.0/15
1.128.0.0
1.128.0.1
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+ 130.8K more (range too large to list inline)
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 1.128.0.0/11.
Frequently Asked Questions
What is 1.128.0.0/15?
1.128.0.0/15 is a CIDR network block containing 131,072 IPv4 addresses (from 1.128.0.0 to 1.129.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 1.128.0.0/15 network?
The 1.128.0.0/15 range is allocated to Telstra Limited and announced via AS1221 from Australia.
Last updated: 2026-07-23 13:55:35 UTC
