AS15457
NOS Madeira Comunicacoes, S.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 →
AS15457 — global IP footprint
Cities where AS15457 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 89.109.64.0/18 | 16.4K |
88.0%
|
NOS Madeira Comunicacoes, S.A. | PT | Madeira | Funchal |
| 83.223.160.0/19 | 8.2K |
99.8%
|
NOS Madeira Comunicacoes, S.A. | PT | Madeira | Funchal |
| 84.23.192.0/19 | 8.2K |
99.2%
|
NOS Madeira Comunicacoes, S.A. | PT | Madeira | Funchal |
| 95.172.160.0/19 | 8.2K |
0.0%
|
NOS Madeira Comunicacoes, S.A. | PT | Madeira | Funchal |
| 188.125.192.0/19 | 8.2K |
99.5%
|
NOS Madeira Comunicacoes, S.A. | PT | Madeira | Funchal |
| 213.138.224.0/19 | 8.2K |
96.7%
|
NOS Madeira Comunicacoes, S.A. | PT | Madeira | Funchal |
| 213.190.192.0/19 | 8.2K |
29.3%
|
NOS Madeira Comunicacoes, S.A. | PT | Madeira | Funchal |
| 159.255.48.0/20 | 4.1K |
99.0%
|
NOS Madeira Comunicacoes, S.A. | PT | Madeira | Funchal |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS15457 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 |
|---|---|---|
| 188.125.192.0/19 | 9,706 | 2026-07-24 18:03:55 |
| 159.255.48.0/20 | 9,636 | 2026-07-24 18:03:55 |
| 95.172.160.0/19 | 9,547 | 2026-07-24 18:03:55 |
| 89.109.64.0/18 | 9,501 | 2026-07-24 18:03:55 |
| 83.223.160.0/19 | 9,485 | 2026-07-24 19:11:09 |
| 213.190.192.0/19 | 9,451 | 2026-07-24 18:03:55 |
| 84.23.192.0/19 | 9,450 | 2026-07-24 18:03:55 |
| 213.138.224.0/19 | 9,412 | 2026-07-24 18:03:55 |
Frequently Asked Questions
What is AS15457?
AS15457 is an Autonomous System Number assigned to NOS Madeira 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 AS15457 announce?
AS15457 announces 69.6K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in Portugal.
Who operates AS15457?
AS15457 is operated by NOS Madeira 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 AS15457 registered in?
AS15457 is registered in Portugal. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
