Home ASN LookupAS1104

AS1104 Nikhef Stichting Nederlandse Wetenschappelijk Onderzoek Instituten

🇳🇱

Org handle: ORG-SVFO1-RIPE

Nikhef

RIPE NCCallocated

Announced Prefixes (BGP)

19total

14 IPv45 IPv6

IPv4 Addresses

Allocated (RIR)78,464

Announced (BGP)78,592

IPv6 Addresses

Allocated (RIR)7.9×10²⁹

Announced (BGP)1.5×10²⁹

Prefix Limit (IPv4)

100

Prefix Limit (IPv6)

Country

🇳🇱 NL

RIR

RIPE NCC

Status

allocated

Allocated

1993-09-01

Routing hygiene

Score 8/100 · Low risk

RPKI ROA coverage

100%

no RPKI invalid prefixes

IRR route objects

100%

no origin mismatches

Hijack signals

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

Upstreams

diversity 23/100

Routes concentrated on one upstream (87% of routes)

Based on 19 announced prefixes, updated daily (2026-10-21). How the score works · RPKI explained

Announced Prefixes

(BGP)19

Prefix	RPKI	IRR	Last Seen
145.102.132.0/22	Valid	RIPE	2026-10-26
145.107.4.0/22	Valid	RIPE	2026-10-26
145.110.0.0/16	Valid	RIPE	2026-10-26
145.116.48.0/20	Valid	RIPE	2026-10-26
145.116.208.0/21	Valid	RIPE	2026-10-26
145.116.216.0/24	Valid	RIPE	2026-10-26
185.153.60.0/22	Valid	RIPE	2026-10-26
192.16.185.0/24	Valid	RIPE	2026-10-26
192.16.186.0/24	Valid	RIPE	2026-10-26
192.16.192.0/24	Valid	RIPE	2026-10-26

1-10 of 19

1 / 2

Allocated Prefixes

(RIR)19

Prefix	Country	RIR	Status
145.102.132.0/22	🇳🇱 NL	RIPE	assigned
145.107.4.0/22	🇳🇱 NL	RIPE	assigned
145.110.0.0/16	🇳🇱 NL	RIPE	assigned
145.116.48.0/20	🇳🇱 NL	RIPE	assigned
145.116.208.0/21	🇳🇱 NL	RIPE	assigned
185.153.60.0/22	🇳🇱 NL	RIPENCC	allocated
192.16.185.0/24	🇳🇱 NL	RIPENCC	assigned
192.16.186.0/24	🇳🇱 NL	RIPENCC	assigned
192.16.192.0/24	🇳🇱 NL	RIPENCC	assigned
192.16.194.0/24	🇳🇱 NL	RIPENCC	assigned

1-10 of 19

1 / 2

All 19 announced prefixes of AS1104 →

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS1104 hands its own prefixes to: transit providers, or peers at an exchange.

AS1103SURFNET NL SURF B.V20
AS29075IELO LIAZO SERVICES SAS3

ASPA

No ASPA

Abuse Contact

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 AS1104 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/1104

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

curl -s "https://api.ipctl.io/v1/asn/1104" | jq