AS47232 ISP Alliance a.s. 🇨🇿 CZ

Announcing 16 prefixes, seen at the RIS collectors.

IPv4 prefixes

9,984 (39 × /24)

IPv6 prefixes

27 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS47232
Name: ISP Alliance a.s.
Organisation: ISP Alliance
Country: 🇨🇿 CZ
RIR: RIPENCC
Allocated: 2008-05-21
Network type: Cable/DSL/ISP
Traffic levels: 500-1000Gbps
Scope: Regional
Peering policy: Open
IRR as-set: RIPE::AS-ISPALLIANCE-CZ
Website: http://www.ispalliance.cz
PeeringDB: net/2768
Exchanges: 2
Facilities: 3

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

12 valid (75.0%) 0 invalid (0.0%) 4 no ROA (25.0%)

Upstreams

Networks seen providing transit to this one

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS1299 Arelion (fka. Telia Carrier)	🇸🇪 SE	68,811	135	2,132	CAIDA
AS3257 GTT Communications Inc.	🇺🇸 US	63,658	1,784	981	CAIDA
AS39392 SH.cz s.r.o.	🇨🇿 CZ	16,042	12	717	CAIDA
AS202297 Skylon Solutions Limited	🇬🇧 GB	2	2	5,876	inferred

Peers

Adjacencies that look settlement-free rather than transit

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS6939 Hurricane Electric LLC	🇺🇸 US	54,403	185	2,722	CAIDA
AS6461 Zayo Bandwidth	🇺🇸 US	51,838	213	131	CAIDA
AS6663 Türk Telekom International	🇷🇴 RO	25,459	48	164	CAIDA
AS20562 Open Peering (Broadband Hosting B.V.)	🇳🇱 NL	23,962	0	83	CAIDA
AS37721 Virtual Technologies & Solutions	🇧🇫 BF	23,879	64	167	CAIDA
AS28917 Fiord Networks, UAB	🇱🇹 LT	21,121	6	4	CAIDA
AS24482 SG.GS	🇸🇬 SG	4,874	45	118	CAIDA
AS20804 Exatel S.A.	🇵🇱 PL	2,256	17	639	CAIDA
AS201053 Stowarzyszenie e-Poludnie	🇵🇱 PL	505	0	761	CAIDA
AS16276 OVH SAS	🇫🇷 FR	432	700	1,057	CAIDA
AS1764 Next Layer Telecommunications	🇦🇹 AT	391	69	85	CAIDA
AS8218 Zayo Europe	🇫🇷 FR	342	19	10	CAIDA
AS16019 Vodafone Czech Republic a.s.	🇨🇿 CZ	159	90	494	CAIDA
AS6855 Slovak Telekom, a.s.	🇸🇰 SK	125	37	210	CAIDA
AS5578 SWAN, a.s.	🇸🇰 SK	120	53	119	CAIDA
AS24940 Hetzner Online GmbH	🇩🇪 DE	119	90	263	CAIDA
AS29208 Quantcom, a.s.	🇨🇿 CZ	107	36	122	CAIDA
AS49981 WorldStream B.V.	🇳🇱 NL	95	122	235	CAIDA
AS5610 O2 Czech Republic, a.s.	🇨🇿 CZ	79	67	6	CAIDA
AS30764 PODA a.s.	🇨🇿 CZ	7	16	27	CAIDA
AS43037 Seznam.cz, a.s.	🇨🇿 CZ	2	6	7	CAIDA
AS714 Apple Inc.	🇺🇸 US	2	1,561	1	CAIDA
AS29504 Freenet Liberec, z.s.	🇨🇿 CZ	0	1	147	CAIDA
AS13199 Jaroslav Doubrava	🇨🇿 CZ	0	1	29	CAIDA

Downstreams

Networks this one appears to provide transit to

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS12570 O2 Czech Republic, a.s.	🇨🇿 CZ	16	11	37	CAIDA
AS35236 UVT Internet s.r.o.	🇨🇿 CZ	14	12	384	CAIDA
AS29134 Webglobe, s.r.o.	🇨🇿 CZ	4	23	135	CAIDA
AS212975 TeamCity s.r.o.	🇨🇿 CZ	3	3	62	CAIDA
AS35046 OMEGA plus Chrudim s.r.o.	🇨🇿 CZ	3	3	43	CAIDA
AS204666 Jiri Tlapak	🇨🇿 CZ	2	38	490	CAIDA
AS210712 ISP Alliance a.s.	🇨🇿 CZ	2	13	415	CAIDA
AS204064 CEZNET s.r.o.	🇨🇿 CZ	2	5	332	CAIDA
AS39455 Jiri Tlapak	🇨🇿 CZ	2	1	84	CAIDA
AS47727 Warnet.cz s.r.o.	🇨🇿 CZ	2	1	76	CAIDA
AS201476 ISP Alliance a.s.	🇨🇿 CZ	0	13	622	CAIDA
AS44002 Sys-DataCom s.r.o.	🇨🇿 CZ	0	13	367	CAIDA
AS207886 ECOMP spol s r.o.	🇨🇿 CZ	0	4	243	CAIDA
AS197296 United Networks SE	🇨🇿 CZ	0	4	206	CAIDA
AS197879 HelaPC s.r.o.	🇨🇿 CZ	0	3	196	CAIDA
AS33883 TRIOPTIMUM s.r.o.	🇨🇿 CZ	0	3	195	CAIDA
AS56566 SATT a.s.	🇨🇿 CZ	0	9	164	CAIDA
AS202618 Rychly drat, s.r.o.	🇨🇿 CZ	0	2	122	CAIDA
AS44500 Vlasimnet s.r.o.	🇨🇿 CZ	0	2	122	CAIDA
AS197393 ISP Alliance a.s.	🇨🇿 CZ	0	2	121	CAIDA
AS20723 AVONET, s.r.o.	🇨🇿 CZ	0	7	90	CAIDA
AS56624 Rtyne.net s.r.o.	🇨🇿 CZ	0	2	84	CAIDA
AS201559 United Networks SE	🇨🇿 CZ	0	1	80	CAIDA
AS50971 JHComp s.r.o.	🇨🇿 CZ	0	1	80	CAIDA
AS198814 ALPHA StylSoft, s.r.o.	🇨🇿 CZ	0	1	80	CAIDA
AS201625 United Networks SE	🇨🇿 CZ	0	1	80	CAIDA
AS202774 ISP Alliance a.s.	🇨🇿 CZ	0	1	80	CAIDA
AS205002 CUBESOL, s.r.o.	🇨🇿 CZ	0	1	80	CAIDA
AS206951 BMB-Green s.r.o.	🇨🇿 CZ	0	1	80	CAIDA
AS209621 DOBNET, z.s.	🇨🇿 CZ	0	1	80	CAIDA
AS50163 Altnet s.r.o.	🇨🇿 CZ	0	1	61	CAIDA
AS51400 SPOJE.NET s.r.o.	🇨🇿 CZ	0	1	46	CAIDA
AS57279 Sauron CZ s.r.o.	🇨🇿 CZ	0	3	45	CAIDA
AS60529 Miroslav Klement	🇨🇿 CZ	0	1	42	CAIDA
AS208847 Martin Fryzl	🇨🇿 CZ	0	1	42	CAIDA
AS202921 CC INTERNET s.r.o.	🇨🇿 CZ	0	12	42	CAIDA
AS201533 United Networks SE	🇨🇿 CZ	0	1	42	CAIDA
AS52084 ISP Alliance a.s.	🇨🇿 CZ	0	1	42	CAIDA
AS202131 ISP Alliance a.s.	🇨🇿 CZ	0	1	42	CAIDA
AS201464 ISP Alliance a.s.	🇨🇿 CZ	0	1	42	CAIDA
AS202877 VEJNET.CZ s.r.o.	🇨🇿 CZ	0	6	40	CAIDA
AS50415 Ahosting a.s.	🇨🇿 CZ	0	1	37	CAIDA
AS205535 Windyghoul s.r.o.	🇨🇿 CZ	0	2	34	inferred
AS57077 AB-NET s.r.o.	🇨🇿 CZ	0	2	16	CAIDA

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.