Home ASN LookupAS25248

AS25248 BlueTone-AS RADIOKOMUNIKACE a.s.

🇨🇿

Org handle: ORG-CRa1-RIPE

The Czech Republic

RIPE NCCallocated

Announced Prefixes (BGP)

7total

5 IPv42 IPv6

IPv4 Addresses

Allocated (RIR)106,752

Announced (BGP)106,752

IPv6 Addresses

Allocated (RIR)6.3×10²⁹

Announced (BGP)7.9×10²⁸

Prefix Limit (IPv4)

200

Prefix Limit (IPv6)

Country

🇨🇿 CZ

RIR

RIPE NCC

Status

allocated

Allocated

2002-09-11

Routing hygiene

Score 12/100 · Low risk

RPKI ROA coverage

71.4%

no RPKI invalid prefixes

IRR route objects

100%

no origin mismatches

Hijack signals

0 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 69/100

29% of announced prefixes (2 of 7) have no valid ROA

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
82.99.128.0/18	Valid	RIPE	2026-10-26
84.244.64.0/18	Valid	RIPE	2026-10-26
85.207.0.0/16	Valid	RIPE	2026-10-26
193.32.56.0/24	No ROA	RIPE	2026-10-26
212.158.128.0/19	Valid	RIPE	2026-10-26
2001:67c:2100::/48	No ROA	RIPE	2026-10-26
2a02:a40::/32	Valid	RIPE	2026-10-26

Allocated Prefixes

(RIR)7

Prefix	Country	RIR	Status
82.99.128.0/18	🇨🇿 CZ	RIPENCC	allocated
84.244.64.0/18	🇨🇿 CZ	RIPENCC	allocated
85.207.0.0/16	🇨🇿 CZ	RIPENCC	allocated
193.32.56.0/24	🇨🇿 CZ	RIPENCC	assigned
212.158.128.0/19	🇨🇿 CZ	RIPENCC	allocated
2001:67c:2100::/48	🇨🇿 CZ	RIPENCC	assigned
2a02:a40::/29	🇨🇿 CZ	RIPENCC	allocated

All 7 announced prefixes of AS25248 →

Downstream Customers(3)

ASN	Name
AS25192	🇨🇿CZNIC-AS CZ.NIC, z.s.p.o.
AS39790	🇨🇿WEB4U Web4U s.r.o.
AS200070	🇨🇿CZNIC-AS2 CZ.NIC, z.s.p.o.

BGP Neighbours

(seen in AS paths)

Upstreams (3)

Networks AS25248 hands its own prefixes to: transit providers, or peers at an exchange.

AS1299TWELVE99 Arelion Sweden AB4
AS6204ZET NET INTERKVM HOST2
AS6939Hurricane Electric1

Downstreams (21)

Networks whose own prefixes AS25248 passes on: usually its customers.

AS206438MXNET MX NET Telekomunikace S.R.O13
AS206712FeldHost FELDSAM S.R.O6
AS215704NGN CZ NGN CZ S.R.O5
AS25192CZNIC CZ.NIC, Z.S.P.O3
AS39790WEB4U S.R.O3
AS57496PRAHA1NET Praha1.Net Z.S.P.O3
AS52058Petrkovice Net Za200.Cz S.R.O2
AS59925GIGASERVER Seonet Multimedia S.R.O2
AS199600Virtis S.R.O2
AS201594CTU AS4 Czech Telecommunication Office2
AS204351NAM System, A.S2
AS213223Gasnet GasNet, S.R.O2
AS213359MAZEL BIZ Jan Korinek2
AS43070JAW JAW.Cz S.R.O1
AS48405CGI CZ AS1 CGI IT Czech Republic S.R.O1
AS57904ASVEVYNET Vevynet S.R.O1
AS196822SELECTSYSTEM SELECT SYSTEM, S.R.O1
AS200871Rockawayx Eu RockawayX Infra S.R.O1
AS202073ABS ACLOUD CLIENTS1 Itego A.S1
AS206613TIPSPORT NET Tipsport.Net A.S1
AS207391EDGROUP E LINKX A.S1

Other adjacent networks (4)

Adjacent to AS25248 in the transit part of AS paths: peers, providers or customers.

AS174Cogent Communications9
AS33891CORE BACKBONE Core Backbone2
AS22356Durand Do Brasil Ltda1
AS31230SIX ROUTE SERVERS Slovak University Of Technology In Bratislava1

ASPA

No ASPA0 upstreams, 3 downstreams

Listed as Upstream Provider by

3 ASNs

View full ASPA details →

Abuse Contact

+31205354444

External Links

RIPE Whois RIPEstat

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

GEThttps://api.ipctl.io/v1/asn/25248

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/25248" | jq