AS44103 BAKKER-IT-AS The Mastermind Holding B.V.
🇳🇱Org handle: ORG-TMHB2-RIPE
RIPE NCCallocated
Announced Prefixes (BGP)
21total
13 IPv48 IPv6
IPv4 Addresses
Allocated (RIR)4,096
Announced (BGP)3,584
IPv6 Addresses
Allocated (RIR)2.9×10³⁰
Announced (BGP)1.3×10³⁰
Routing hygiene
Score 24/100 · Low riskRPKI ROA coverage
52.4%
3 prefixes RPKI invalid
IRR route objects
85.7%
1 prefix registered for another origin
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
5
diversity 75/100
- 48% of announced prefixes (10 of 21) have no valid ROA, 3 of them RPKI invalid
- 14% of announced prefixes (3 of 21) have no IRR route object for this ASN
Based on 21 announced prefixes, updated daily (2026-10-27). How the score works · RPKI explained
Announced Prefixes
(BGP)21|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Invalid | - | 2026-10-28 | |
| Valid | RIPE | 2026-10-28 | |
| Valid | RIPE | 2026-10-28 | |
| Valid | RIPE | 2026-10-28 | |
| Valid | APNIC | 2026-10-28 | |
| Valid | APNIC | 2026-10-28 | |
| Valid | RIPE | 2026-10-28 | |
| Valid | RIPE | 2026-10-28 | |
| Valid | RIPE | 2026-10-28 | |
| Valid | RIPE | 2026-10-28 |
1-10 of 21
1 / 3
Allocated Prefixes
(RIR)23Prefix | Country | RIR | Status |
|---|---|---|---|
| 45.93.119.0/24 | 🇳🇱 NL | RIPE | assigned |
| 45.139.163.0/24 | 🇳🇱 NL | RIPE | assigned |
| 45.146.6.0/23 | 🇳🇱 NL | RIPENCC | allocated |
| 77.90.23.0/24 | 🇳🇱 NL | RIPE | assigned |
| 103.163.186.0/23 | 🇳🇱 NL | APNIC | allocated |
| 178.18.152.0/22 | 🇳🇱 NL | RIPE | assigned |
| 178.218.145.0/24 | 🇳🇱 NL | RIPE | assigned |
| 185.150.96.0/24 | 🇳🇱 NL | RIPE | assigned |
| 185.249.217.0/24 | 🇬🇧 GB | RIPE | assigned |
| 188.65.164.0/24 | 🇬🇧 GB | RIPENCC | allocated |
1-10 of 23
1 / 3
All 21 announced prefixes of AS44103 →
Downstream Customers(8)
| ASN | Name |
|---|---|
| AS56997 | 🇩🇪FILE42 Johannes J. Jakob |
| AS204830 | 🇳🇱IPOAC-AS Jelle Kaufmann |
| AS204931 | 🇬🇧PNOSOLUTIONS-AS PNO Solutions Limited |
| AS207740 | 🇪🇬AMIRGT-AS Youssef Hamed |
| AS211868 | 🇫🇷PROSAICLOUD Quentin Dacquet |
| AS214723 | 🇳🇱HEIJKOOP-AS Maria-Elisabeth Annabel Heijkoop |
| AS215386 | 🇳🇱HOFMAN-AS Arjan Hofman |
| AS215561 | 🇩🇪SEIKE-AS Stefan Eikenbusch |
BGP Neighbours
(seen in AS paths)Upstreams (5)
Networks AS44103 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (20)
Networks whose own prefixes AS44103 passes on: usually its customers.
- AS212085BRUEGGUS Alexander Bruegmann6
- AS204830IPOAC Jelle Kaufmann4
- AS211041SWOOTH Connectra B.V4
- AS214723HEIJKOOP Maria Elisabeth Annabel Heijkoop4
- AS214731ETO Networks Limited4
- AS39083DAVID FROEHLICH David Froehlich2
- AS202855GALACTICGROUP Galactic Group B.V2
- AS205398TYLER OBRIEN Tyler Obrien2
- AS205563ZGato Marc Gomez2
- AS206540CREEKY NOISES MAKE MY SKIN CREEP I NEED TO GET SOME SLEEP I CAN T GET NO SLEEP BEANSUMMERHOST NEXTGEN SHED HOSTING SOLUTIONS2
- AS213253MAEL GRAMAIN MAEL GRAMAIN2
- AS215386HOFMAN Arjan Hofman2
- AS215553VAARTFIBER Stichting VaartFiber2
- AS197814Malte Bittner1
- AS203151NKHN Sander Ruitenbeek Trading As NKHN1
- AS206042SH WEB Suhail Haris1
- AS206090CYBERPUNK AUTONOMOUS SYSTEM Tomasz Plachecki1
- AS208328L2N Luigi Labate1
- AS213619NETBELA Tom Emming Trading As Netbela1
- AS214974ZEROTECH CLOUD1
Other adjacent networks (1)
Adjacent to AS44103 in the transit part of AS paths: peers, providers or customers.
- AS50673Serverius Holding B.V3
Abuse Contact
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/44103Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/44103" | jq