AS8251 NFX_ZSPO FreeTel, s.r.o.
🇨🇿Org handle: ORG-SK14-RIPE
RIPE NCCallocated
Announced Prefixes (BGP)
7total
6 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)13,312
Announced (BGP)17,408
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Routing hygiene
Score 10/100 · Low riskRPKI ROA coverage
100%
no RPKI invalid prefixes
IRR route objects
100%
no origin mismatches
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
1
diversity 0/100
- Only one upstream seen in the AS paths of its routes
Based on 7 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained
Announced Prefixes
(BGP)7|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | RIPE | 2026-10-24 | |
| Valid | RIPE | 2026-10-24 | |
| Valid | RIPE | 2026-10-24 | |
| Valid | RIPE | 2026-10-24 | |
| Valid | RIPE | 2026-10-24 | |
| Valid | RIPE | 2026-10-24 | |
| Valid | RIPE | 2026-10-24 |
Allocated Prefixes
(RIR)5Prefix | Country | RIR | Status |
|---|---|---|---|
| 31.47.96.0/20 | 🇨🇿 CZ | RIPENCC | allocated |
| 78.108.96.0/20 | 🇨🇿 CZ | RIPENCC | allocated |
| 185.99.64.0/22 | 🇨🇿 CZ | RIPENCC | allocated |
| 212.79.96.0/20 | 🇨🇿 CZ | RIPENCC | allocated |
| 2a01:490::/32 | 🇨🇿 CZ | RIPENCC | allocated |
All 7 announced prefixes of AS8251 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS8251 hands its own prefixes to: transit providers, or peers at an exchange.
- AS16019VODAFONE CZ Vodafone Czech Republic A.S7
Downstreams (14)
Networks whose own prefixes AS8251 passes on: usually its customers.
- AS57707GREENDATA S.R.O7
- AS51331ModernTV SychrovNET S.R.O6
- AS34596HVfree HVfree.Net Servis. S.R.O4
- AS62099JMNET JM Networks, S.R.O4
- AS198813SychrovNET S.R.O4
- AS201608HovNet SERVIS S.R.O4
- AS41670HKFREE Hkfree.Org Z.S3
- AS49095P12com PRAHA12.Com S.R.O3
- AS59984KLFREE NETWORKS KLFREE NETWORKS, S.R.O3
- AS198977UNART UnArtel S.R.O3
- AS12984PILSFREE PilsFree, Z. S2
- AS31349A Net A Net Liberec S.R.O1
- AS59747NIX DR NIX.CZ Z.S.P.O1
- AS214224CESKASITNET CeskaSit.Net Networks S.R.O1
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/8251Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/8251" | jq