AS28637
Cia Proc. de Dados do Estado de S Paulo - Prodesp
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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 201.55.0.0/18 | 16.4K |
4.4%
|
Cia Proc. de Dados do Estado de S Paulo - Prodesp | BR | São Paulo | São Bernardo do Campo |
| 200.144.0.0/19 | 8.2K |
5.6%
|
Cia Proc. de Dados do Estado de S Paulo - Prodesp | BR | São Paulo | São Paulo |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS28637 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 |
|---|---|---|
| 200.144.0.0/19 | 18,889 | 2026-07-22 06:20:35 |
| 201.55.0.0/18 | 15,331 | 2026-07-22 06:20:35 |
| 201.55.30.0/23 | 14,969 | 2026-07-22 06:20:35 |
| 200.144.3.0/24 | 14,918 | 2026-07-22 06:20:35 |
| 201.55.60.0/22 | 14,189 | 2026-07-22 06:20:35 |
| 201.55.8.0/23 | 13,511 | 2026-07-22 06:20:35 |
| 201.55.4.0/22 | 12,432 | 2026-07-22 06:20:35 |
| 201.55.6.0/23 | 12,400 | 2026-07-22 06:20:35 |
| 200.144.76.0/23 | 2,844 | 2026-07-14 07:39:37 |
| 201.55.46.0/24 | 2,035 | 2026-07-22 06:20:35 |
| 201.55.31.0/24 | 1,393 | 2026-07-22 06:20:35 |
| 177.72.255.0/24 | 92 | 2026-05-29 16:58:05 |
Frequently Asked Questions
What is AS28637?
AS28637 is an Autonomous System Number assigned to Cia Proc. de Dados do Estado de S Paulo - Prodesp. 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 AS28637 announce?
AS28637 announces 24.6K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS28637?
AS28637 is operated by Cia Proc. de Dados do Estado de S Paulo - Prodesp. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS28637 registered in?
AS28637 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
