AS36738 Athenahealth

AS-NVA1-1 - Athenahealth · registered in the United States

IPv4 addresses2,8166 prefixes · <0.001% of announced IPv4

Rank in United States#5,507largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#19,428of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS36738 in ASN lookup Look up an IP in this network (162.208.24.1) All networks in United States

IPv4 prefixes

All 6 prefixes, in address order.

162.208.24.0/22
162.220.217.0/24
162.220.219.0/24
204.165.246.0/23
208.78.140.0/23
208.78.143.0/24

Other ASNs named Athenahealth

4 other networks use the same organisation name; together with AS36738 they announce 7,424 IPv4 addresses.

ASNNameIPv4 addresses

AS46903AS-RCH1-1 - Athenahealth US2,560

AS40515AS-CMH1-1 - Athenahealth US1,024

AS54593ATHEN-EPOC - Athenahealth US768

AS11174AS-ATHEN-1 - Athenahealth US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS35871#5504 RCI - Reynolds Cable, Inc2,816

AS36165#5505 ITM-TELECOM - ITM TELECOM2,816

AS36373#5506 COMMUNITY-HEALTH-NETWORK - Community Hospitals, Indianapolis2,816

AS40073#5508 NBA-ASN-USA - NBA Properties, Inc.2,816

AS46817#5509 MTAINC - Midwest Telecom of America, Inc2,816

AS54183#5510 PEER39-ASN - Peer39 Inc2,816

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