AS51864
4Sync Solutions sp. z o.o. s. k.-a.
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 |
|---|---|---|---|---|---|---|
| 178.213.96.0/21 | 2.0K |
0.0%
|
4Sync Solutions sp. z o.o. s. k.-a. | PL | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS51864 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 |
|---|---|---|
| 178.213.96.0/21 | 22,939 | 2026-08-02 20:33:24 |
Frequently Asked Questions
What is AS51864?
AS51864 is an Autonomous System Number assigned to 4Sync Solutions sp. z o.o. s. k.-a.. 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 AS51864 announce?
AS51864 announces 2.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Poland.
Who operates AS51864?
AS51864 is operated by 4Sync Solutions sp. z o.o. s. k.-a.. The organization is based in Poland. You can view all IP ranges and related ASNs on the organization page.
What country is AS51864 registered in?
AS51864 is registered in Poland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
