AS21645 American Dental Association

ADA-CHICAGO - American Dental Association · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#14,429largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#64,231of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS21645 in ASN lookup Look up an IP in this network (64.145.66.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

64.145.66.0/24

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AS21644#14428 DISTINGUISHED-SERVICES - Distinguished Services256

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AS21672#14431 CES-HQPA-01 - Customized Energy Solutions, Ltd.256

AS21673#14432 NGMC-ASN - Northeast Georgia Medical Center, Inc.256

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