AS2603 NORDUNET NORDUnet
🇩🇰Org handle: ORG-NA47-RIPE
RIPE NCCallocated
Announced Prefixes (BGP)
12total
10 IPv42 IPv6
IPv4 Addresses
Allocated (RIR)11,520
Announced (BGP)9,728
IPv6 Addresses
Allocated (RIR)6.3×10²⁹
Announced (BGP)7.1×10²⁹
Routing hygiene
Score 13/100 · Low riskRPKI ROA coverage
83.3%
no RPKI invalid prefixes
IRR route objects
91.7%
1 prefix registered for another origin
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
2
diversity 28/100
- Routes concentrated on one upstream (83% of routes)
- 17% of announced prefixes (2 of 12) have no valid ROA
Based on 12 announced prefixes, updated daily (2026-10-25). How the score works · RPKI explained
Announced Prefixes
(BGP)12|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| No ROA | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | - | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| No ROA | RIPE | 2026-10-25 |
1-10 of 12
1 / 2
Allocated Prefixes
(RIR)12Prefix | Country | RIR | Status |
|---|---|---|---|
| 109.105.96.0/19 | 🇩🇰 DK | RIPENCC | allocated |
| 109.105.106.0/24 | 🇩🇰 DK | RIPE | assigned |
| 185.174.116.0/22 | 🇩🇰 DK | RIPENCC | allocated |
| 185.174.116.0/24 | 🇩🇰 DK | RIPE | assigned |
| 185.174.117.0/24 | 🇩🇰 DK | RIPE | assigned |
| 192.36.171.0/24 | 🇸🇪 SE | RIPE | assigned |
| 193.10.252.0/24 | 🇸🇪 SE | RIPE | assigned |
| 193.10.254.0/24 | 🇩🇰 DK | RIPE | assigned |
| 193.10.255.0/24 | 🇸🇪 SE | RIPE | assigned |
| 193.11.3.0/24 | 🇸🇪 SE | RIPE | assigned |
1-10 of 12
1 / 2
All 12 announced prefixes of AS2603 →
BGP Neighbours
(seen in AS paths)Upstreams (2)
Networks AS2603 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (15)
Networks whose own prefixes AS2603 passes on: usually its customers.
- AS1653Vetenskapsradet / SUNET56
- AS1741FUNETAS CSC Tieteen Tietotekniikan Keskus Oy41
- AS224Sikt Kunnskapssektorens Tjenesteleverandor21
- AS2847LITNET Kauno Technologijos Universitetas10
- AS1835IDDQD8
- AS8501PIONIER Institute Of Bioorganic Chemistry Polish Academy Of Science, Poznan Supercomputing And Networking Center7
- AS8674NETNOD IX Netnod AB7
- AS15474RHNET Rannsokna Og Haskolanet Islands Hf3
- AS6509CANARIE2
- AS39590NDGF NORDUnet2
- AS2832SUNET TESTBED Vetenskapsradet / SUNET1
- AS3221EENet Haridus Ja Teadusministeerium1
- AS3301TELIANET SWEDEN Telia Company AB1
- AS21320GEANT IAS VRF GEANT Vereniging1
- AS29689ORIGO Ehf1
Other adjacent networks (19)
Adjacent to AS2603 in the transit part of AS paths: peers, providers or customers.
- AS37468Angola Cables Angola Cables107
- AS33891CORE BACKBONE Core Backbone99
- AS6204ZET NET INTERKVM HOST47
- AS6762SEABONE NET TELECOM ITALIA SPARKLE S.P.A26
- AS48362TKSWF Stadtwerke Feldkirch18
- AS6461Zayo Bandwidth17
- AS24482SG.GS14
- AS11537Internet213
- AS34549MEER Meerfarbig & . KG8
- AS3214XTOM7
- AS20764RASCOM CJSC RASCOM5
- AS35280F5 Networks SARL5
- AS31027GlobalConnect AS31027 GlobalConnect A/S4
- AS23911China Next Generation Internet Beijing IX2
- AS1103SURFNET NL SURF B.V1
- AS4635Hong Kong Internet Exchange Route Server 11
- AS7195EDGEUNO S.A.S1
- AS7575Australian Academic And Research Network (AARNet)1
- AS15412FLAG Telecom UK Limited1
Abuse Contact
+31205354444
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/2603Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/2603" | jq