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AS31581
AS31581 KOPINT-AS NISZ National Infocommunications Service Provider Private Limited
KOPINT-AS NISZ National Infocommunications Service Provider Private Limited · registered in Hungary
IPv4 addresses 65,536 1 prefixes · 0.002% of announced IPv4
Rank in Hungary #15 largest network in HU by IPv4 space, of 236 · 1.15% of HU
Rank worldwide #3,299 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
Country Hungary 246 ASNs registered there
IPv4 prefixes
All 1 prefix, in address order.
Similar-sized networks in Hungary
ASN Name IPv4 addresses
AS3314 #12 KFKI-AS HUN-REN Wigner Research Centre for Physics65,536
AS6711 #13 HUNGARNET-SZEGED University of Szeged65,536
AS8990 #16 AHRT-AS 4iG Telecommunications Holding Zrt64,256
AS8448 #17 CETIN-HU CETIN Hungary Zrt.53,248
AS47169 #18 HPC-MVM-AS Pro-M Zrt.52,992
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