AS3745 NTT DATA Services Holdings Corporation

NTTDATA-SERVICES-AS2 - NTT DATA Services Holdings Corporation · registered in the United States

IPv4 addresses17,4083 prefixes · <0.001% of announced IPv4

Rank in United States#2,255largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#6,662of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS3745 in ASN lookup Look up an IP in this network (148.9.64.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

148.9.64.0/18
148.9.242.0/23
148.9.244.0/23

Other ASNs named NTT DATA Services Holdings Corporation

1 other network uses the same organisation name; together with AS3745 they announce 30,208 IPv4 addresses.

ASNNameIPv4 addresses

AS1294NTTDATA-SERVICES-AS1 - NTT DATA Services Holdings Corporation US12,800

Similar-sized networks in United States

ASNNameIPv4 addresses

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AS8092#2256 AMH - Access Media Holdings, LLC17,408

AS11353#2257 ASN-ESCXI - Education Service Center Region XI17,408

AS17275#2258 FMAC-I-BILLING - Federal Home Loan Mortgage Corporation17,408

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