AS203937 Cyfrotel MAREK BZDZIUCH trading as CYFROTEL Sp. J.
🇵🇱Org handle: ORG-CSJM2-RIPE
RIPE NCCallocated
Announced Prefixes (BGP)
9total
8 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)5,872
Announced (BGP)3,328
IPv6 Addresses
Allocated (RIR)1.2×10³⁰
Announced (BGP)7.9×10²⁸
Announced Prefixes
(BGP)9|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 |
Allocated Prefixes
(RIR)19Prefix | Country | RIR | Status |
|---|---|---|---|
| 185.119.120.0/22 | 🇵🇱 PL | RIPENCC | allocated |
| 185.119.120.0/23 | 🇵🇱 PL | RIPE | assigned |
| 185.119.122.0/23 | 🇵🇱 PL | RIPE | assigned |
| 185.125.4.0/24 | 🇵🇱 PL | RIPE | assigned |
| 185.131.240.0/22 | 🇵🇱 PL | RIPENCC | allocated |
| 185.131.240.0/23 | 🇵🇱 PL | RIPE | assigned |
| 185.131.242.0/24 | 🇵🇱 PL | RIPE | assigned |
| 185.131.243.0/24 | 🇵🇱 PL | RIPE | assigned |
| 185.216.172.0/24 | 🇵🇱 PL | RIPE | assigned |
| 185.253.233.0/24 | 🇵🇱 PL | RIPE | assigned |
1-10 of 19
1 / 2
All 9 announced prefixes of AS203937 →
BGP Neighbours
(seen in AS paths)Upstreams (3)
Networks AS203937 hands its own prefixes to: transit providers, or peers at an exchange.
Other adjacent networks (1)
Adjacent to AS203937 in the transit part of AS paths: peers, providers or customers.
- AS20804ASN TELENERGO Exatel S.A1
ASPA
No ASPA
Abuse Contact
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS203937 should publish an ASPA object
- IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/203937Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/203937" | jq