AS400523 InterSystems Corporation

INTERSYSTEMS - InterSystems Corporation · registered in the United States

IPv4 addresses1,0243 prefixes · <0.001% of announced IPv4

Rank in United States#9,021largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#42,402of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS400523 in ASN lookup Look up an IP in this network (64.6.36.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

64.6.36.0/23
128.177.43.0/24
208.185.132.0/24

Similar-sized networks in United States

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AS400507#9020 CHARGER-ACCESS-ASN-01 - Charger Access, LLC1,024

AS400539#9022 HESD - Harney Education Service District Region XVII1,024

AS400571#9023 CADENCE-ATL - CDNS1,024

AS400595#9024 281-COMMUNICATIONS-CORPARATION-INC - 281 Communications Corporation Inc.1,024

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