HomeASN LookupAS57043

AS57043 HOSTKEY-AS HOSTKEY B.V.

🇳🇱

Org handle: ORG-HB14-RIPE

RIPE NCCallocated
Announced Prefixes (BGP)
698total
691 IPv47 IPv6
IPv4 Addresses
Allocated (RIR)140,032
Announced (BGP)189,696
IPv6 Addresses
Allocated (RIR)6.3×10²⁹
Announced (BGP)7.9×10²⁹
Prefix Limit (IPv4)
2,000
Prefix Limit (IPv6)
50
Country
🇳🇱 NL
RIR
RIPE NCC
Status
allocated
Allocated
2011-07-07

Routing hygiene

Score 32/100 · Medium risk
RPKI ROA coverage
88.8%
51 prefixes RPKI invalid
IRR route objects
89.7%
65 prefixes registered for another origin
Hijack signals
25
17 announced against others' ROAs, 8 own announced by others
Upstreams
24
diversity 70/100
  • Announces 17 prefixes that RPKI assigns to another network (possible hijack or misconfiguration)
  • 11% of announced prefixes (78 of 697) have no valid ROA, 51 of them RPKI invalid
  • 26 prefixes registered in IRR route objects for another active network and not authorized by a ROA

Based on 697 announced prefixes, updated daily (2026-10-25). How the score works · RPKI explained

Listed on the threat map (2026-10-26)

Large hosting providers appear because attackers rent their servers, not necessarily because of the operator.

Announced Prefixes

(BGP)698
|
Prefix
RPKI
IRR
Last Seen
2.27.86.0/24
 Valid
RIPE
-
2.27.127.0/24
 Valid
Other IRRRIPE
-
2.57.242.0/24
 Valid
RIPE
-
2.57.243.0/24
 Valid
RIPE
-
5.39.216.0/21
 Valid
RIPE
-
5.39.216.0/24
 Valid
RIPE
-
5.39.217.0/24
 Valid
RIPE
-
5.39.218.0/24
 Valid
RIPE
-
5.39.219.0/24
 Valid
RIPE
-
5.39.220.0/24
 Valid
RIPE
-
1-10 of 698
1 / 70

Allocated Prefixes

(RIR)500
Prefix
Country
RIR
Status
2.27.86.0/24🇩🇪 DERIPEassigned
2.27.127.0/24🇫🇮 FIRIPEassigned
2.57.242.0/24🇫🇮 FIRIPEassigned
2.57.243.0/24🇫🇮 FIRIPEassigned
5.39.216.0/21🇳🇱 NLRIPENCCallocated
5.42.199.0/24🇪🇪 EERIPENCCallocated
5.102.37.0/24🇪🇺 EURIPEassigned
5.145.176.0/24🇷🇺 RURIPEassigned
5.180.172.0/24🇫🇮 FIRIPEassigned
5.180.173.0/24🇫🇷 FRRIPEassigned
1-10 of 500
1 / 50

All 698 announced prefixes of AS57043 →

Downstream Customers(1)

ASNName
AS57511🇦🇪ITEL-AS-NUMBER Innovative Telecom Systems FZE

BGP Neighbours

(seen in AS paths)

Upstreams (24)

Networks AS57043 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS6939Hurricane Electric361
  • AS9002RETN Limited117
  • AS59692IQWEB FZ55
  • AS174Cogent Communications51
  • AS6762SEABONE NET TELECOM ITALIA SPARKLE S.P.A40
  • AS49434FBWNETWORKS FBW NETWORKS SAS17
  • AS12735ASTurkNet TurkNet Iletisim Hizmetleri A.S10
  • AS13004SOX Serbian Open Exchange DOO8
  • AS6677ICENET AS1 Mila Hf7
  • AS3257GTT BACKBONE GTT Communications6
  • AS3216SOVAM PJSC "Vimpelcom"5
  • AS6797GLOBALCONNECT NET GlobalConnect AB5
  • AS7195EDGEUNO S.A.S4
  • AS24940HETZNER Online4
  • AS34177CELESTE SAS4
  • AS35280F5 Networks SARL3
  • AS57724DDOS GUARD DDOS GUARD3
  • AS4775Globe Telecoms2
  • AS5405INTERDOTLINK Inter.Link2
  • AS6204ZET NET INTERKVM HOST1
  • AS14537Continent 81
  • AS28910INTAL ASN "Uzbektelekom" Joint Stock Company1
  • AS31500GNM Global Network Management1
  • AS137409GSL Networks Pty1

Downstreams (19)

Networks whose own prefixes AS57043 passes on: usually its customers.

  • AS207461Host Industry HOSTING INDUSTRY LIMITED100
  • AS26383Baxet Group54
  • AS200313ProHoster IT WEB27
  • AS216154CLODO CLOUD SERVICE . L.L.C23
  • AS212706LIVI HOSTING LIVI HOSTING14
  • AS211673Mynymbox Hosting7
  • AS48729Serverking B.V6
  • AS198178PARTNERS 365 365.Partners5
  • AS59965LEOGIS Astralus2
  • AS213459SNOWD Security OU2
  • AS49227TCI ANYCAST NET Ukrainian Internet Names Center1
  • AS57511ITEL NUMBER Innovative Telecom Systems FZE1
  • AS142554Vivi 231
  • AS152179GLOBAL COMMUNICATION NETWORK LIMITED1
  • AS200394BLS HOSTING BLS Media1
  • AS202799SYSECT D.O.O1
  • AS203374Kanade Romuald Richard1
  • AS205380GEEKTEAMLLLC GeekTeam L.L.C FZ1
  • AS218757MyCheapHost MYCHEAP1

Other adjacent networks (3)

Adjacent to AS57043 in the transit part of AS paths: peers, providers or customers.

  • AS3356Level 3 Parent2
  • AS25534INTELSOFT 10G.KZ1
  • AS50263IXP 1 IX EU A Systems Sp. Z O.O1
ASPA
No ASPA0 upstreams, 1 downstream
Listed as Upstream Provider by
1 ASN
View full ASPA details →
Abuse Contact
External Links
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Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/57043

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

curl -s "https://api.ipctl.io/v1/asn/57043" | jq