AS23628
Academic newtown Community Cable Service
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
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: JPNAP Tokyo: Peering
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 202.220.224.0/19 | 8.2K |
94.4%
|
Academic newtown Community Cable Service | JP | Ibaraki | Tsukuba |
| 210.235.48.0/20 | 4.1K |
77.4%
|
Academic newtown Community Cable Service | JP | Ibaraki | Tsukuba |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS23628 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 |
|---|---|---|
| 202.220.224.0/19 | 7,666 | 2026-07-31 08:50:15 |
| 210.235.48.0/20 | 7,652 | 2026-07-31 08:50:15 |
Frequently Asked Questions
What is AS23628?
AS23628 is an Autonomous System Number assigned to Academic newtown Community Cable Service. 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 AS23628 announce?
AS23628 announces 12.3K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Japan.
Who operates AS23628?
AS23628 is operated by Academic newtown Community Cable Service. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS23628 registered in?
AS23628 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
