Autonomous System details

AS10879

Unitedhealthcare · uhc.com

United States

Anycast

CDN

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AS10879 – Unitedhealthcare

Field	Value
Country	United States
Website	uhc.com
Hosted domains	1,411
IPv4 addresses	219,904
IPv6 addresses	0
ASN type	Business
Registry	arin
Allocated	28 years ago on Dec 17, 1997
Updated	14 years ago on Dec 13, 2011

Netblock	Company	Num of IPs
170.138.0.0/16	UnitedHealth Group Incorporated	65,536
128.35.0.0/17	UnitedHealth Group Incorporated	32,768
128.35.128.0/17	UnitedHealth Group Incorporated	32,768
128.35.64.0/18	UnitedHealth Group Incorporated	16,384
128.35.192.0/18	UnitedHealth Group Incorporated	16,384
149.111.128.0/19	UnitedHealth Group Incorporated	8,192
149.111.192.0/19	UnitedHealth Group Incorporated	8,192
161.249.64.0/20	UnitedHealth Group Incorporated	4,096
161.249.80.0/20	UnitedHealth Group Incorporated	4,096
161.249.144.0/20	UnitedHealth Group Incorporated	4,096
161.249.160.0/20	UnitedHealth Group Incorporated	4,096
161.249.176.0/20	UnitedHealth Group Incorporated	4,096
161.249.224.0/20	UnitedHealth Group Incorporated	4,096
168.183.128.0/20	UnitedHealth Group Incorporated	4,096
149.111.112.0/21	UnitedHealth Group Incorporated	2,048
149.111.224.0/21	UnitedHealth Group Incorporated	2,048
161.249.200.0/21	UnitedHealth Group Incorporated	2,048
161.249.208.0/21	UnitedHealth Group Incorporated	2,048
161.249.240.0/21	UnitedHealth Group Incorporated	2,048
161.249.248.0/21	UnitedHealth Group Incorporated	2,048
128.35.68.0/22	UnitedHealth Group Incorporated	1,024
128.35.72.0/22	UnitedHealth Group Incorporated	1,024
149.111.160.0/22	UnitedHealth Group Incorporated	1,024
149.111.164.0/22	UnitedHealth Group Incorporated	1,024
149.111.168.0/22	UnitedHealth Group Incorporated	1,024
149.111.172.0/22	UnitedHealth Group Incorporated	1,024
149.111.176.0/22	UnitedHealth Group Incorporated	1,024
149.111.232.0/22	UnitedHealth Group Incorporated	1,024
168.183.32.0/22	UnitedHealth Group Incorporated	1,024
168.183.36.0/22	UnitedHealth Group Incorporated	1,024
168.183.48.0/22	UnitedHealth Group Incorporated	1,024
168.183.52.0/22	UnitedHealth Group Incorporated	1,024
168.183.56.0/22	UnitedHealth Group Incorporated	1,024
168.183.60.0/22	UnitedHealth Group Incorporated	1,024
168.183.64.0/22	UnitedHealth Group Incorporated	1,024
168.183.68.0/22	UnitedHealth Group Incorporated	1,024
168.183.96.0/22	UnitedHealth Group Incorporated	1,024
168.183.208.0/22	UnitedHealth Group Incorporated	1,024
168.183.212.0/22	UnitedHealth Group Incorporated	1,024
168.183.216.0/22	UnitedHealth Group Incorporated	1,024
170.138.172.0/22	UnitedHealth Group Incorporated	1,024
149.111.26.0/23	Optum International	512
149.111.28.0/23	Optum Global Services (India) Private Limited	512
149.111.30.0/23	Optum Global Services (India) Private Limited	512
149.111.126.0/23	UnitedHealth Group Incorporated	512
161.249.196.0/23	Optum Global Advantage	512
168.183.42.0/23	UnitedHealth Group Incorporated	512
168.183.44.0/23	UnitedHealth Group Incorporated	512
168.183.46.0/23	UnitedHealth Group Incorporated	512
168.183.106.0/23	UnitedHealth Group Incorporated	512
168.183.164.0/23	UnitedHealth Group Incorporated	512
168.183.166.0/23	UnitedHealth Group Incorporated	512
170.138.254.0/23	UnitedHealth Group Incorporated	512
204.28.14.0/23	Kelsey-Seybold Clinic	512
149.111.12.0/24	UnitedHealth Group Incorporated	256
149.111.21.0/24	Optum Global Services (India) Private Limited	256
149.111.22.0/24	Optum Global Services (India) Private Limited	256
149.111.180.0/24	UnitedHealth Group Incorporated	256
149.111.236.0/24	UnitedHealth Group Incorporated	256
149.111.237.0/24	UnitedHealth Group Incorporated	256
149.111.238.0/24	UnitedHealth Group Incorporated	256
161.249.191.0/24	UnitedHealth Group Incorporated	256
161.249.216.0/24	UnitedHealth Group Incorporated	256
168.183.2.0/24	UnitedHealth Group Incorporated	256
168.183.3.0/24	UnitedHealth Group Incorporated	256
168.183.40.0/24	UnitedHealth Group Incorporated	256
168.183.41.0/24	UnitedHealth Group Incorporated	256
168.183.121.0/24	UnitedHealth Group Incorporated	256
168.183.122.0/24	UnitedHealth Group Incorporated	256
168.183.144.0/24	UnitedHealth Group Incorporated	256
170.138.27.0/24	UnitedHealth Group Incorporated	256
170.138.29.0/24	UnitedHealth Group Incorporated	256
170.138.52.0/24	UnitedHealth Group Incorporated	256
170.138.53.0/24	UnitedHealth Group Incorporated	256
170.138.144.0/24	UnitedHealth Group Incorporated	256
170.138.170.0/24	UnitedHealth Group Incorporated	256
170.138.176.0/24	UnitedHealth Group Incorporated	256
170.174.0.0/24	UnitedHealth Group Incorporated	256
198.203.174.0/24	UnitedHealth Group Incorporated	256
198.203.175.0/24	UnitedHealth Group Incorporated	256
198.203.176.0/24	UnitedHealth Group Incorporated	256
198.203.177.0/24	UnitedHealth Group Incorporated	256
198.203.181.0/24	UnitedHealth Group Incorporated	256
204.28.12.0/24	Kelsey-Seybold Clinic	256
204.28.13.0/24	Kelsey-Seybold Clinic	256
204.28.14.0/24	Kelsey-Seybold Clinic	256
204.28.15.0/24	Kelsey-Seybold Clinic	256
205.132.162.0/24	Sierra Health Services Inc.	256
205.132.166.0/24	Sierra Health Services Inc.	256
208.66.221.0/24	Trover Solutions	256
208.66.222.0/24	Trover Solutions	256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS10879
                                                OrgID:          AS10879
                                                ASName:         AS10879
                                                ASNumber:       AS10879
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 1,411 domain names hosted across 459 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
204.28.12.31	██████████	252
204.28.12.25	██████████	239
149.111.144.96	██████████	75
149.111.148.141	██████████	48
149.111.164.190	█████████	39
149.111.149.235	██████████	35
168.183.44.179	█████████	35
149.111.128.236	██████████	35
149.111.148.127	██████████	32
168.183.36.207	██████████	28

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Peers

There are 17 peers for this ASN.

Peers	Name
AS13335	Cloudflare, Inc.
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.
AS22773	Cox Communications Inc.
AS23473	PAVLOV MEDIA INC
AS32621	Twin City VoIP, Inc.
AS3356	Level 3 Parent, LLC
AS3549	Level 3 Parent, LLC
AS4181	TDS TELECOM
AS45820	Tata Teleservices ISP AS
AS4755	TATA Communications formerly VSNL is Leading ISP
AS4775	Globe Telecoms
AS64289	Macarne.com
AS6461	Zayo Bandwidth
AS701	Verizon Business
AS7018	AT&T Enterprises, LLC
AS9299	Philippine Long Distance Telephone Company
AS9498	BHARTI Airtel Ltd.

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ASN API & Database

Upstreams

There are 11 upstreams for this ASN.

upstreams	Name
AS13335	Cloudflare, Inc.
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.
AS22773	Cox Communications Inc.
AS3356	Level 3 Parent, LLC
AS4755	TATA Communications formerly VSNL is Leading ISP
AS4775	Globe Telecoms
AS6461	Zayo Bandwidth
AS701	Verizon Business
AS7018	AT&T Enterprises, LLC
AS9299	Philippine Long Distance Telephone Company
AS9498	BHARTI Airtel Ltd.

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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
161.249.145.3	AS10879 Unitedhealthcare	`0.26ms` from Atlanta, US
168.183.218.102	AS10879 Unitedhealthcare	`0.86ms` from Dallas, US
168.183.212.114	AS10879 Unitedhealthcare	`19.23ms` from Denver, US
168.183.96.35	AS10879 Unitedhealthcare	`6.49ms` from Des Moines, US
149.111.167.213	AS10879 Unitedhealthcare	`6.29ms` from Des Moines, US
161.249.160.3	AS10879 Unitedhealthcare	`5.78ms` from Des Moines, US
149.111.207.184	AS10879 Unitedhealthcare	`5.77ms` from Des Moines, US
168.183.128.89	AS10879 Unitedhealthcare	`13.78ms` from Kansas City, US
149.111.221.1	AS10879 Unitedhealthcare	`5.80ms` from Des Moines, US
149.111.200.171	AS10879 Unitedhealthcare	`5.76ms` from Des Moines, US
149.111.199.78	AS10879 Unitedhealthcare	`6.17ms` from Des Moines, US
168.183.60.141	AS10879 Unitedhealthcare	`5.76ms` from Des Moines, US
168.183.35.39	AS10879 Unitedhealthcare	`5.76ms` from Des Moines, US
149.111.192.49	AS10879 Unitedhealthcare	`5.79ms` from Des Moines, US
168.183.141.38	AS10879 Unitedhealthcare	`13.78ms` from Kansas City, US
205.132.166.217	AS10879 Unitedhealthcare	`2.88ms` from Las Vegas, US
161.249.178.41	AS10879 Unitedhealthcare	`0.76ms` from Los Angeles, US
161.249.202.23	AS10879 Unitedhealthcare	`3.35ms` from Los Angeles, US
149.111.151.129	AS10879 Unitedhealthcare	`1.60ms` from Minneapolis, US
149.111.172.240	AS10879 Unitedhealthcare	`1.60ms` from Minneapolis, US
161.249.247.33	AS10879 Unitedhealthcare	`8.09ms` from New York City, US
161.249.212.42	AS10879 Unitedhealthcare	`1.64ms` from New York City, US
161.249.90.24	AS10879 Unitedhealthcare	`1.82ms` from New York City, US
161.249.144.1	AS10879 Unitedhealthcare	`0.25ms` from Atlanta, US
161.249.76.49	AS10879 Unitedhealthcare	`1.49ms` from Dallas, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
66.93.233.127	AS6079 RCN	`0.25ms` from Boston, US
84.0.174.191	AS5483 Magyar Telekom Plc.	`1.46ms` from Budapest, HU
40.143.41.95	AS17378 TierPoint, LLC	`1.44ms` from Durham, US
86.165.143.255	AS2856 British Telecommunications PLC	`3.33ms` from London, GB
90.213.126.15	AS5607 Sky UK Limited	`12.88ms` from London, GB
136.156.140.47	AS42081 European Centre for Medium-Range Weather Forecasts (ECMWF)	`3.81ms` from Milan, IT
66.41.147.15	AS7922 Comcast Cable Communications, LLC	`2.93ms` from Minneapolis, US
97.145.32.15	AS6167 Verizon Business	`12.59ms` from New York City, US
60.93.51.15	AS17676 SoftBank Corp.	`3.54ms` from Osaka, JP
18.228.151.127	AS16509 Amazon.com, Inc.	`0.17ms` from Osasco, BR
187.87.116.159	AS28220 Alares Cabo Servicos de Telecomunicacoes S.A.	`5.72ms` from Osasco, BR
166.196.31.31	AS7018 AT&T Enterprises, LLC	`0.91ms` from Philadelphia, US
63.204.66.31	AS7018 AT&T Enterprises, LLC	`4.20ms` from San Jose, US
23.98.126.127	AS8075 Microsoft Corporation	`0.60ms` from Singapore, SG
221.202.30.191	AS4837 CHINA UNICOM China169 Backbone	`7.88ms` from Tieling, CN
178.18.104.159	AS8427 Joint Stock Company TransTeleCom	`8.86ms` from Yekaterinburg, RU
81.204.183.191	AS1136 KPN B.V.	`1.12ms` from Amsterdam, NL
72.49.117.111	AS6181 Cincinnati Bell Telephone Company LLC	`1.56ms` from Cincinnati, US
119.188.239.223	AS4837 CHINA UNICOM China169 Backbone	`5.33ms` from Jinan, CN
46.53.255.255	AS42772 Unitary enterprise A1	`0.61ms` from Minsk, BY
217.23.29.255	AS12389 PJSC Rostelecom	`6.98ms` from Moscow, RU
93.182.47.207	AS41802 Limited Liability Company Kvidex-Telecom	`1.97ms` from Moscow, RU
5.36.255.223	AS28885 OmanTel NAP	`2.45ms` from Muscat, OM
116.147.0.31	AS140716 UNICOM JiangSu WuXi IDC network	`4.71ms` from Nanjing, CN
217.84.234.79	AS3320 Deutsche Telekom AG	`4.13ms` from Nuernberg, DE

Traceroute

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

traceroute -a -n -q1 -f4 -m8 161.249.150.50

traceroute to 161.249.150.50 (161.249.150.50): 8 hops max, 52 byte packets

4 [AS3356] 64.159.251.198 0.317 ms

5 [AS10879] 161.249.145.14 0.869 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Atlanta, US

On February 27th 2026

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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 AS10879 at robtex.

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