Addresses
8,192
8.2K
Sub-ranges
14+
within this block
PTR Density
84.3%
6.9K of 8.2K 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.
76/100
Moderate
How this score is built
- Baseline (neutral) 65
- Long-established allocation (20y) +6
- Has a reverse-DNS (PTR) record +5
- Trust score 76 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 123.255.0.0/19
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 123.255.16.0/20 | 4.1K | — | — | NZ |
| 123.255.16.0/20 | 4.1K | 2degrees Networks Limited | AS23655 | NZ |
| 123.255.0.0/20 | 4.1K | — | — | NZ |
| 123.255.16.0/20 | 4.1K | 2degrees Networks Limited | AS23655 | NZ |
| 123.255.0.0/21 | 2.0K | 2degrees Networks Limited | AS23655 | NZ |
| 123.255.0.0/21 | 2.0K | 2degrees Networks Limited | AS23655 | NZ |
| 123.255.8.0/22 | 1.0K | 2degrees Networks Limited | AS23655 | NZ |
| 123.255.8.0/22 | 1.0K | 2degrees Networks Limited | AS23655 | NZ |
| 123.255.14.0/23 | 512 | 2degrees Networks Limited | AS23655 | NZ |
| 123.255.14.0/23 | 512 | 2degrees Networks Limited | AS23655 | NZ |
| 123.255.12.0/24 | 256 | 2degrees Networks Limited | AS23655 | NZ |
| 123.255.12.0/24 | 256 | 2degrees Networks Limited | AS23655 | NZ |
| 123.255.13.0/24 | 256 | Ethan Group | AS38084 | NZ |
| 123.255.13.0/24 | 256 | Ethan Group | AS38084 | NZ |
Geolocation
First 256 of 8,192 IP addresses in 123.255.0.0/19
123.255.0.0
123.255.0.1
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+ 7.9K more (range too large to list inline)
BGP Routing
Live BGP anomalies →This block is announced in BGP, observed across our RIPE RIS collectors.
Announced prefix
Origin AS
Announcement samples
5,898
Last seen
2026-07-23 15:58:10
Frequently Asked Questions
What is 123.255.0.0/19?
123.255.0.0/19 is a CIDR network block containing 8,192 IPv4 addresses (from 123.255.0.0 to 123.255.31.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 123.255.0.0/19 network?
The 123.255.0.0/19 range is allocated to an unknown organization from New Zealand.
Last updated: 2026-07-23 16:10:36 UTC
