Home ASN LookupAS197731

AS197731 TUXIS The Internet Engineering Group B.V.

🇳🇱

Org handle: ORG-JSta1-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

13total

10 IPv43 IPv6

IPv4 Addresses

Allocated (RIR)7,680

Announced (BGP)7,424

IPv6 Addresses

Allocated (RIR)1.5×10²⁹

Announced (BGP)1.5×10²⁹

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇳🇱 NL

RIR

RIPE NCC

Status

allocated

Allocated

2011-04-07

Announced Prefixes

(BGP)13

Prefix	RPKI	IRR	Last Seen
31.3.104.0/21	Valid	RIPE	2026-10-11
45.91.118.0/23	Valid	RIPE	2026-10-11
45.137.196.0/23	Valid	RIPE	2026-10-11
91.190.107.0/24	Valid	RIPE	2026-10-11
158.173.56.0/23	Valid	RIPE	2026-10-11
158.173.117.0/24	Valid	RIPE	2026-10-11
185.67.224.0/22	Valid	RIPE	2026-10-11
185.119.28.0/22	Valid	RIPE	2026-10-11
185.119.31.0/24	Valid	RIPE	2026-10-11
185.148.20.0/22	Valid	RIPE	2026-10-11

1-10 of 13

1 / 2

Allocated Prefixes

(RIR)13

Prefix	Country	RIR	Status
31.3.104.0/21	🇳🇱 NL	RIPENCC	allocated
31.3.110.0/24	🇳🇱 NL	RIPE	assigned
31.3.111.0/24	🇳🇱 NL	RIPE	assigned
45.91.118.0/23	🇳🇱 NL	RIPE	assigned
45.137.196.0/23	🇳🇱 NL	RIPE	assigned
91.190.107.0/24	🇳🇱 NL	RIPE	assigned
158.173.56.0/23	🇳🇱 NL	RIPE	assigned
158.173.117.0/24	🇳🇱 NL	RIPE	assigned
185.67.224.0/22	🇳🇱 NL	RIPENCC	allocated
185.119.28.0/22	🇳🇱 NL	RIPENCC	allocated

1-10 of 13

1 / 2

All 13 announced prefixes of AS197731 →

BGP Neighbours

(seen in AS paths)

Upstreams (3)

Networks AS197731 hands its own prefixes to: transit providers, or peers at an exchange.

AS137409GSLNETWORKS AP GSL Networks Pty11
AS8455ATOM86 BV1
AS39637NETLOGICS ADES BV1

Downstreams (2)

Networks whose own prefixes AS197731 passes on: usually its customers.

AS34233SUPERIOR B.V3
AS204983Cyberfusion B.V2

Transfer History

Registry transfers of AS197731 between organisations.

AS197731M&A · 2019-06-24
J.M. Schouten trading as Tuxis Internet Engineering
RIPE NCC
→
The Internet Engineering Group B.V.
RIPE NCC

Date	Resource	From	To	Type
2019-06-24	AS197731	J.M. Schouten trading as Tuxis Internet Engineering RIPE NCC	The Internet Engineering Group B.V. RIPE NCC	M&A

ASPA

No ASPA

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
ASPA explainedWhy AS197731 should publish an ASPA object
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/197731

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

curl -s "https://api.ipctl.io/v1/asn/197731" | jq