AS18964

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Summary

IP address summary information
Name	Adventist Health System Sunbelt Healthcare Corporation
Country	United States
Website	host.io/adventhealth.com·adventhealth.com
Hosted domains	2,630
IPv4 addresses	20,736
IPv6 addresses	0
ASN type	Business
Registry	ARIN
Allocated	25 years ago on Nov 2, 2000
Updated	3 years ago on Jan 9, 2023

Ranking

#28,112

Overall rank

among 74,671 networks

Traffic

#22,727

Infrastructure

#12,990

#4,546inUnited States

Learn how ASN rankings work

Geolocation

Share of IPv4 footprint per hexagonLessMore

Countries by IPv4 share

United States
100%

Held location over 90 days: 88%
Held location over 1 year: 91%
Median days between moves: 57 days
Geolocation scope: National

How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.

Activity

A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.

Mon

IP Ranges

Netblock	Company	Num of IPs
204.139.64.0/18	Adventist Health System Sunbelt Healthcare Corporation	16,384
204.156.96.0/20	Adventist Health System Sunbelt Healthcare Corporation	4,096
204.139.64.0/24	Adventist Health System Sunbelt Healthcare Corporation	256
204.139.66.0/24	Adventist Health System Sunbelt Healthcare Corporation	256
204.139.67.0/24	Adventist Health System Sunbelt Healthcare Corporation	256
204.139.84.0/24	Adventist Health System Sunbelt Healthcare Corporation	256
204.139.85.0/24	Adventist Health System Sunbelt Healthcare Corporation	256
204.139.87.0/24	Adventist Health System Sunbelt Healthcare Corporation	256
204.139.88.0/24	Adventist Health System Sunbelt Healthcare Corporation	256
204.139.96.0/24	Adventist Health System Sunbelt Healthcare Corporation	256

IP Ranges

WHOIS


  ASHandle:       █████
  OrgID:          █████
  ASName:         ██████
  ASNumber:       AS█████
  RegDate:        ████-██-██
  Updated:        ████-██-██
  TechHandle:     ████-████
  Source:         ████

Hosted Domains

There are 2,630 domain names hosted across 16 IP addresses on this ASN.

IP Address	Domain	Count
204.139.88.231		2,607
204.139.88.230		5
204.139.85.120		5
204.139.85.175		2
204.139.87.34		1

Places

Peers

There are 5 peers for this ASN.

ASN	Name	Rank
AS3356	Level 3 Parent, LLC
AS7018	AT&T Enterprises, LLC
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.
AS32787	Akamai Technologies, Inc.
AS33363	Charter Communications, Inc

Upstreams

There are 5 upstreams for this ASN.

ASN	Name	Rank
AS3356	Level 3 Parent, LLC
AS7018	AT&T Enterprises, LLC
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.
AS32787	Akamai Technologies, Inc.
AS33363	Charter Communications, Inc

Downstreams

There are 0 downstreams for this ASN.

No downstreams found.

Pingable IPs

9 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more

IP Address	ASN	Details
204.139.65.2 Ping	AS18964Adventist Health System Sunbelt Healthcare Corporation	0.89ms from Orlando, US
204.139.102.3 Ping	AS18964Adventist Health System Sunbelt Healthcare Corporation	0.70ms from Ashburn, US
204.139.67.2 Ping	AS18964Adventist Health System Sunbelt Healthcare Corporation	0.85ms from Orlando, US
204.156.120.31 Ping	AS18964Adventist Health System Sunbelt Healthcare Corporation	0.86ms from Orlando, US
204.139.101.2 Ping	AS18964Adventist Health System Sunbelt Healthcare Corporation	1.05ms from Chicago, US
204.139.88.12 Ping	AS18964Adventist Health System Sunbelt Healthcare Corporation	7.35ms from Miami, US
204.139.112.3 Ping	AS18964Adventist Health System Sunbelt Healthcare Corporation	5.85ms from Orlando, US
204.139.66.2 Ping	AS18964Adventist Health System Sunbelt Healthcare Corporation	1.43ms from Orlando, US
204.139.96.2 Ping	AS18964Adventist Health System Sunbelt Healthcare Corporation	0.48ms from Philadelphia, US

Other Pingable IPs

IP Address	ASN	Details

Pingable IPs

Important routers in AS18964


204.139.85.221	Altamonte Springs, United States
204.139.101.2	Chicago, United States
204.139.102.2	Ashburn, United States
204.139.67.2	Orlando, United States

Important routers in AS18964

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.Traceroute →

$ traceroute -a -n -q1 -m9 204.139.103.32

traceroute to 204.139.103.32 (204.139.103.32): 9 hops max, 52 byte packets

1 [AS17378] 65.99.238.194 1.094 ms

2 [AS17378] 173.237.168.23 1.092 ms

3 [AS17378] 74.114.180.72 1.076 ms

4 [AS3356] 4.16.22.29 0.717 ms

5 [AS3356] 4.69.132.57 39.954 ms

6 [AS3356] 4.31.182.174 40.211 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Tulsa, US

On September 24, 2026

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS18964 at robtex.

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AS18964

Summary

Ranking

Geolocation

Countries by IPv4 share

Activity

IP Ranges

IP Ranges

WHOIS

Hosted Domains

Places

Peers

Upstreams

Downstreams

Pingable IPs

Other Pingable IPs

Pingable IPs

Important routers in AS18964

Important routers in AS18964

Traceroute

Related Networks

AS18453

AS26678

AS27071

AS31814

AS393402

What is an ASN?

An API built with users in mind: reliable, accurate, and easy-to-use

Our IP tools

What is my IP?

Map IPs

Summarize IPs

Traceroute

Ranking

IP Ranges

Important routers in AS18964

Geolocation

Countries by IPv4 share

Pingable IPs

Other Pingable IPs

Activity

AS18453

AS26678

AS27071

AS31814

AS393402

AS398842