Home ASN LookupAS51088

AS51088 A2B A2B IP B.V.

🇳🇱

Org handle: ORG-AIB25-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

98total

71 IPv427 IPv6

IPv4 Addresses

Allocated (RIR)23,872

Announced (BGP)54,528

IPv6 Addresses

Allocated (RIR)6.7×10³⁰

Announced (BGP)6.9×10³⁰

Prefix Limit (IPv4)

200

Prefix Limit (IPv6)

100

Country

🇳🇱 NL

RIR

RIPE NCC

Status

allocated

Allocated

2010-05-28

Routing hygiene

Score 16/100 · Low risk

RPKI ROA coverage

77.6%

7 prefixes RPKI invalid

IRR route objects

96.9%

no origin mismatches

Hijack signals

0 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 62/100

22% of announced prefixes (22 of 98) have no valid ROA, 7 of them RPKI invalid

Based on 98 announced prefixes, updated daily (2026-10-24). How the score works · RPKI explained

Announced Prefixes

(BGP)98

Prefix	RPKI	IRR	Last Seen
5.10.192.0/24	Valid	RIPE	2026-10-26
31.41.255.0/24	Valid	RIPE	2026-10-26
31.134.200.0/21	Valid	RIPE	2026-10-26
45.85.191.0/24	Valid	RIPE	2026-10-26
46.175.131.0/24	Valid	RIPE	2026-10-26
46.244.0.0/19	No ROA	-	2026-10-26
46.244.0.0/21	Valid	RIPE	2026-10-26
46.244.8.0/22	Valid	RIPE	2026-10-26
46.244.9.0/24	Valid	-	2026-10-26
46.244.11.0/24	Valid	-	2026-10-26

1-10 of 98

1 / 10

Allocated Prefixes

(RIR)62

Prefix	Country	RIR	Status
5.10.192.0/24	🇳🇱 NL	RIPENCC	allocated
31.41.255.0/24	🇳🇱 NL	RIPENCC	allocated
31.134.200.0/21	🇳🇱 NL	RIPENCC	allocated
45.85.191.0/24	🇳🇱 NL	RIPE	assigned
46.175.131.0/24	🇳🇱 NL	RIPENCC	allocated
46.244.11.0/24	🇳🇱 NL	RIPE	assigned
46.244.16.0/23	🇳🇱 NL	RIPENCC	allocated
46.244.21.0/24	🇳🇱 NL	RIPE	assigned
46.244.22.0/24	🇳🇱 NL	RIPE	assigned
46.244.23.0/24	🇳🇱 NL	RIPE	assigned

1-10 of 62

1 / 7

All 98 announced prefixes of AS51088 →

Downstream Customers(4)

ASN	Name
AS8298	🇨🇭IPNG IPng Networks GmbH
AS15562	🇳🇱SNIJDERS Job Snijders
AS201995	🇳🇱bre-efx EINDHOVEN FIBER EXCHANGE B.V.
AS202562	🇳🇱APERTURE-NETWORKS Roelf Wichertjes

BGP Neighbours

(seen in AS paths)

Upstreams (4)

Networks AS51088 hands its own prefixes to: transit providers, or peers at an exchange.

AS3257GTT BACKBONE GTT Communications47
AS8455ATOM86 BV28
AS8298IPNG Networks14
AS6939Hurricane Electric2

Downstreams (25)

Networks whose own prefixes AS51088 passes on: usually its customers.

AS202656XServerCloud Ivanov Vitaliy Sergeevich233
AS61180A2B2 A2B IP B.V12
AS12902LUNA Ekco B.V11
AS973Revive IT Solutions10
AS205668GREENMINIHOST Green Mini Host BV9
AS15562SNIJDERS Job Snijders7
AS52102TRIBION B.V5
AS60131HIGH5 NL High5! B.V5
AS203919LumaDock4
AS210449SKYRENT NL SkyRENT B.V4
AS35027ASN SEVENP B.V3
AS31019MEANIE Paulus M. Hoogsteder2
AS42703ICT Combinatie B.V2
AS50119Scc Smith Computer Centrum Computers BV2
AS207179Wilroff WilroffReitsma B.V2
AS213577Monta Services Monta Services BV2
AS24642NL CAVEO Internet BV1
AS39855MOD EU Mod Mission Critical1
AS50559DIVD Stichting Dutch Institute For Vulnerability Disclosure1
AS52199ARKIN Stichting Arkin1
AS57129Gidpro BV1
AS60358McCloud McCloud.Nl B.V1
AS199292ELJAKIM Information Technology B.V1
AS213773BLUEM B.V1
AS214988Solit McCloud.Nl B.V1

Other adjacent networks (3)

Adjacent to AS51088 in the transit part of AS paths: peers, providers or customers.

AS1103SURFNET NL SURF B.V5
AS13030INIT7 (Switzerland)3
AS6461Zayo Bandwidth1

ASPA

No ASPA0 upstreams, 4 downstreams

Listed as Upstream Provider by

4 ASNs

View full ASPA details →

Abuse Contact

+31205354444

External Links

RIPE Whois RIPEstat

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

GEThttps://api.ipctl.io/v1/asn/51088

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

curl -s "https://api.ipctl.io/v1/asn/51088" | jq