AS395139 NewYork-Presbyterian Hospital

NYP-INTERNET - NewYork-Presbyterian Hospital · registered in the United States

IPv4 addresses229,37630 prefixes · 0.007% of announced IPv4

Rank in United States#293largest network in US by IPv4 space, of 18,338 · 0.02% of US

Rank worldwide#985of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS395139 in ASN lookup Look up an IP in this network (140.251.128.1) All networks in United States

IPv4 prefixes

All 30 prefixes, in address order.

140.251.128.0/17
143.104.0.0/23
143.104.2.0/23
143.104.4.0/22
143.104.8.0/23
143.104.10.0/24
143.104.11.0/24
143.104.12.0/22
143.104.16.0/20
143.104.32.0/19
143.104.64.0/18
143.104.128.0/17
156.111.0.0/17
156.111.128.0/18
156.111.192.0/19
156.111.224.0/22
156.111.228.0/24
156.111.229.0/24
156.111.230.0/23
156.111.232.0/21
156.111.240.0/20
156.145.0.0/17
156.145.128.0/18
156.145.192.0/19
156.145.224.0/20
156.145.240.0/24
156.145.241.0/24
156.145.242.0/23
156.145.244.0/22
156.145.248.0/21

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ASNNameIPv4 addresses

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AS46450#294 PILOT - Pilot Fiber, Inc.228,096

AS6039#295 DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)224,000

AS10879#296 UHC - Unitedhealthcare223,744

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