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
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
AS1897 — global IP footprint
Cities where AS1897 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS1897 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 |
|---|---|---|
| 194.79.64.0/19 | 9,646 | 2026-07-24 07:21:35 |
| 193.126.0.0/16 | 9,570 | 2026-07-24 07:21:35 |
| 195.23.0.0/16 | 9,514 | 2026-07-24 07:21:35 |
| 212.0.160.0/19 | 9,408 | 2026-07-24 07:21:35 |
| 213.205.64.0/19 | 9,398 | 2026-07-24 07:21:35 |
| 88.157.64.0/18 | 9,392 | 2026-07-24 07:21:35 |
| 88.157.128.0/17 | 9,387 | 2026-07-24 07:21:35 |
| 192.101.118.0/24 | 4,986 | 2026-07-24 07:21:35 |
Frequently Asked Questions
What is AS1897?
AS1897 is an Autonomous System Number assigned to Nos Comunicacoes, S.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 AS1897 announce?
AS1897 announces 204.0K IPv4 addresses distributed across 33 routed CIDR prefixes. The network is registered in Portugal.
Who operates AS1897?
AS1897 is operated by Nos Comunicacoes, S.A.. The organization is based in Portugal. You can view all IP ranges and related ASNs on the organization page.
What country is AS1897 registered in?
AS1897 is registered in Portugal. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
