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.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 46.17.24.0/21 | 2.0K |
2.0%
|
Gemeente Amsterdam | NL | North Holland | Amsterdam |
| 194.104.80.0/22 | 1.0K |
0.0%
|
Gemeente Amsterdam | NL | — | — |
| 194.13.133.0/24 | 256 |
0.0%
|
KPN B.V. | NL | North Holland | Amsterdam |
| 194.104.84.0/24 | 256 |
0.0%
|
Gemeente Amsterdam | NL | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS51647 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 194.104.80.0/22 | 14,058 | 2026-08-01 14:30:43 |
| 194.13.133.0/24 | 14,015 | 2026-08-01 14:30:43 |
| 46.17.24.0/21 | 8,917 | 2026-08-01 14:19:16 |
| 194.104.84.0/24 | 8,803 | 2026-08-01 14:22:16 |
Frequently Asked Questions
What is AS51647?
AS51647 is an Autonomous System Number assigned to Gemeente Amsterdam. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS51647 announce?
AS51647 announces 3.6K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in The Netherlands.
Who operates AS51647?
AS51647 is operated by Gemeente Amsterdam. The organization is based in The Netherlands. You can view all IP ranges and related ASNs on the organization page.
What country is AS51647 registered in?
AS51647 is registered in The Netherlands. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
