AS21373 NBB-AS Banque Nationale de Belgique

NBB-AS Banque Nationale de Belgique · registered in Belgium

IPv4 addresses2,0484 prefixes · <0.001% of announced IPv4

Rank in Belgium#82largest network in BE by IPv4 space, of 273 · 0.02% of BE

Rank worldwide#22,972of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryBelgium294 ASNs registered there

Open AS21373 in ASN lookup Look up an IP in this network (193.53.48.1) All networks in Belgium

IPv4 prefixes

All 4 prefixes, in address order.

193.53.48.0/24
193.53.50.0/24
193.53.54.0/23
193.53.56.0/22

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ASNNameIPv4 addresses

AS31511#79 B-RAIL-BE-AS Infrabel NV2,048

AS48260#80 TELEWEB TELEWEB bvba2,048

AS12942#81 NRB-AS Network Research Belgium S.A.2,048

AS35350#83 AS_SCHWARZ_PHARMA_AG UCB Pharma S.A.2,048

AS35593#84 UNIWEB-AS UniWeb bvba2,048

AS42851#85 ELIABE-AS Elia Asset N.V2,048

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources