HomeASN LookupAS12337

AS12337 NORIS-NETWORK noris network AG

🇩🇪

Org handle: ORG-nnA1-RIPE

IT Service Provider located in Nuernberg, Germany

RIPE NCCallocated
Announced Prefixes (BGP)
94total
78 IPv416 IPv6
IPv4 Addresses
Allocated (RIR)110,080
Announced (BGP)118,272
IPv6 Addresses
Allocated (RIR)6.4×10²⁶
Announced (BGP)7.9×10²⁸
Prefix Limit (IPv4)
200
Prefix Limit (IPv6)
50
Country
🇩🇪 DE
RIR
RIPE NCC
Status
allocated
Allocated
1999-03-22

Routing hygiene

Score 19/100 · Low risk
RPKI ROA coverage
73.4%
1 prefix RPKI invalid
IRR route objects
98.9%
1 prefix registered for another origin
Hijack signals
1
1 announced against others' ROAs, 0 own announced by others
Upstreams
9
diversity 77/100
  • 27% of announced prefixes (25 of 94) have no valid ROA, 1 of them RPKI invalid
  • Announces 1 prefix that RPKI assigns to another network (possible hijack or misconfiguration)

Based on 94 announced prefixes, updated daily (2026-10-18). How the score works · RPKI explained

Announced Prefixes

(BGP)94
|
Prefix
RPKI
IRR
Last Seen
31.13.185.0/24
 Valid
RIPE
2026-10-26
31.13.187.0/24
 Valid
RIPE
2026-10-26
45.88.236.0/22
 Valid
RIPE
2026-10-26
45.91.196.0/23
 Valid
RIPE
2026-10-26
45.146.16.0/22
No ROA
RIPE
2026-10-26
45.146.17.0/24
No ROA
RIPE
2026-10-26
62.128.0.0/19
 Valid
RIPE
2026-10-26
87.237.216.0/23
 Valid
RIPE
2026-10-26
87.237.218.0/24
 Valid
RIPE
2026-10-26
87.237.222.0/23
 Valid
RIPE
2026-10-26
1-10 of 94
1 / 10

Allocated Prefixes

(RIR)60
Prefix
Country
RIR
Status
31.13.185.0/24🇩🇪 DERIPEassigned
31.13.187.0/24🇩🇪 DERIPEassigned
45.88.236.0/22🇩🇪 DERIPENCCallocated
45.146.16.0/22🇩🇪 DERIPENCCallocated
45.146.17.0/24🇩🇪 DERIPEassigned
62.128.0.0/19🇩🇪 DERIPENCCallocated
87.237.216.0/23🇩🇪 DERIPEassigned
87.237.218.0/24🇩🇪 DERIPEassigned
87.237.222.0/23🇩🇪 DERIPEassigned
89.250.128.0/20🇩🇪 DERIPENCCallocated
1-10 of 60
1 / 6

All 94 announced prefixes of AS12337 →

Downstream Customers(1)

ASNName
AS204053🇩🇪ADESTIS-NET ADESTIS GmbH

BGP Neighbours

(seen in AS paths)

Upstreams (9)

Networks AS12337 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS5405INTERDOTLINK Inter.Link30
  • AS2914NTT America22
  • AS33891CORE BACKBONE Core Backbone17
  • AS6204ZET NET INTERKVM HOST9
  • AS6939Hurricane Electric6
  • AS1299TWELVE99 Arelion Sweden AB4
  • AS174Cogent Communications3
  • AS20546SOPRADO ANY SOPRADO2
  • AS3223VOXILITY LLP1

Downstreams (26)

Networks whose own prefixes AS12337 passes on: usually its customers.

  • AS47409TPI Thinkproject Deutschland7
  • AS60955WAVECON7
  • AS47897RED Medical Systems4
  • AS204053ADESTIS NET ADESTIS4
  • AS44833VirtNET Hans Peter Groh3
  • AS56636Cdns Eudc Cadence Design Systems3
  • AS61303NETWAYS3
  • AS205100F3NETZE F3 Netze E.V3
  • AS209891QUARINET QuarIT3
  • AS20572GIESECKE & Devrient2
  • AS21433AccentureFSSC Accenture UK Limited2
  • AS25115DIEHL Informatik2
  • AS34460PHOENIX International Holdings2
  • AS52158BBRAIL Rail Power Systems2
  • AS204038ADITSYSTEMS AD IT Systems2
  • AS205497PAYBACK DE 1 PAYBACK2
  • AS206231NETLOGIX & . KG2
  • AS209122WCOAS1 W& MediaServices Muenchen & KG2
  • AS209991Lavego2
  • AS21234GRENKE Service1
  • AS34646STEINKAMM Arne Steinkamm1
  • AS44880NORIS NETWORK ASIA Noris Network1
  • AS200916CLEB Clausjuergens EDV Beratungsgesellschaft MbH1
  • AS203777Cloudopserve1
  • AS206915MSGSERVICES Msg Systems1
  • AS207248Vsqloud VS Qloud Solution1
ASPA
No ASPA0 upstreams, 1 downstream
Listed as Upstream Provider by
1 ASN
View full ASPA details →
Abuse Contact
+31205354444
External Links
RIPE WhoisRIPEstat

Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/12337

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

curl -s "https://api.ipctl.io/v1/asn/12337" | jq