AS5588 GTSCE T-Mobile Czech Republic a.s.
🇨🇿Org handle: ORG-Ra2-RIPE
GTS Central Europe / Antel Germany
RIPE NCCallocated
Announced Prefixes (BGP)
31total
28 IPv43 IPv6
IPv4 Addresses
Allocated (RIR)77,568
Announced (BGP)80,640
IPv6 Addresses
Allocated (RIR)1.5×10²⁹
Announced (BGP)1.5×10²⁹
Prefix Limit (IPv4)
100
Prefix Limit (IPv6)
10
Country
🇨🇿 CZRIR
RIPE NCCStatus
allocated
Allocated
1996-03-28
Routing hygiene
Score 78/100 · High riskRPKI ROA coverage
9.7%
27 prefixes RPKI invalid
IRR route objects
29%
22 prefixes registered for another origin
Hijack signals
9
9 announced against others' ROAs, 0 own announced by others
Upstreams
2
diversity 44/100
- 90% of announced prefixes (28 of 31) have no valid ROA, 27 of them RPKI invalid
- Announces 9 prefixes that RPKI assigns to another network (possible hijack or misconfiguration)
- 71% of announced prefixes (22 of 31) have no IRR route object for this ASN
Based on 31 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained
Announced Prefixes
(BGP)31|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
45.9.233.0/24MOAS | Invalid | - | 2026-10-26 |
45.9.234.0/24MOAS | Invalid | - | 2026-10-26 |
45.9.235.0/24MOAS | Invalid | - | 2026-10-26 |
89.234.205.0/24MOAS | Invalid | - | 2026-10-26 |
89.234.206.0/24MOAS | Invalid | - | 2026-10-26 |
89.234.233.0/24MOAS | Invalid | - | 2026-10-26 |
89.234.234.0/24MOAS | Invalid | - | 2026-10-26 |
89.234.238.0/24MOAS | Invalid | - | 2026-10-26 |
89.234.240.0/24MOAS | Invalid | - | 2026-10-26 |
89.234.241.0/24MOAS | Invalid | - | 2026-10-26 |
1-10 of 31
1 / 4
Allocated Prefixes
(RIR)19Prefix | Country | RIR | Status |
|---|---|---|---|
| 45.9.233.0/24 | 🇬🇧 GB | RIPENCC | allocated |
| 45.9.234.0/24 | 🇵🇱 PL | RIPE | assigned |
| 45.9.235.0/24 | 🇵🇱 PL | RIPE | assigned |
| 89.234.205.0/24 | 🇵🇱 PL | RIPE | assigned |
| 89.234.206.0/24 | 🇵🇱 PL | RIPE | assigned |
| 89.234.233.0/24 | 🇵🇱 PL | RIPE | assigned |
| 89.234.238.0/24 | 🇵🇱 PL | RIPE | assigned |
| 89.234.240.0/24 | 🇵🇱 PL | RIPE | assigned |
| 89.234.241.0/24 | 🇵🇱 PL | RIPE | assigned |
| 91.120.0.0/16 | 🇭🇺 HU | RIPENCC | allocated |
1-10 of 19
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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
- How to run an ASPA checkVerify the upstream providers listed above
- 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/5588Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/5588" | jq