166.3.128.0/20

AS4155 · USDA

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Summary

Country	United States
Domain	usda.gov
ASN	AS4155
Registry	ARIN
ID	NETBLK-USFS

WHOIS Details

NetHandle:      NET-166-2-0-0-1
OrgID:          USDA-3-Z
Parent:         NET-166-0-0-0-0
NetName:        NETBLK-USFS
NetRange:       166.2.0.0 - 166.7.255.255
NetType:        allocation
RegDate:        1993-11-03
Updated:        2024-04-25
Source:         ARIN


OrgID:          USDA-3-Z
OrgName:        USDA
CanAllocate:    
Street:         Suite 133, Building A
Street:         2150 Centre Ave
City:           Fort Collins
State/Prov:     CO
Country:        US
PostalCode:     80526
RegDate:        2024-04-10
Updated:        2024-04-10
OrgAdminHandle: ZU20-ARIN
OrgTechHandle:  ZU20-ARIN
OrgAbuseHandle: SECUR27-ARIN
OrgAbuseHandle: ZU20-ARIN
Source:         ARIN


POCHandle:      SECUR27-ARIN
IsRole:         Y
LastName:       Security Abuse
FirstName:      
Street:         2150 Centre Ave. Building A
City:           Fort Collins
State/Prov:     CO
Country:        US
PostalCode:     80526
RegDate:        2008-10-08
Updated:        2018-11-29
OfficePhone:    +1-866-873-2926
Mailbox:        abuse@usda.gov
Source:         ARIN


POCHandle:      ZU20-ARIN
IsRole:         Y
LastName:       USDA - Office of the ChiefInformation Officer
FirstName:      
Street:         2150 Centre Ave. Building A Suite 133
City:           Fort Collins
State/Prov:     CO
Country:        US
PostalCode:     80526
RegDate:        2000-06-16
Updated:        2025-06-27
OfficePhone:    +1-866-873-2926
Mailbox:        duty.officer@usda.gov
Source:         ARIN

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
20.75.186.116	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
110.151.68.148	AS1221 Telstra Limited	`7.63ms` from Brisbane, AU
103.80.4.100	AS395363 Infoblox, Inc.	`0.21ms` from Dallas, US
182.68.29.68	AS24560 Bharti Airtel Ltd., Telemedia Services	`11.46ms` from Delhi, IN
37.136.185.4	AS16086 DNA Oyj	`10.02ms` from Helsinki, FI
14.172.250.36	AS45899 VNPT Corp	`2.49ms` from Ho Chi Minh City, VN
99.107.119.52	AS7018 AT&T Enterprises, LLC	`6.03ms` from Houston, US
86.16.31.164	AS5089 Virgin Media Limited	`9.51ms` from London, GB
62.122.251.212	AS39783 Webhuset AS	`1.60ms` from Oslo, NO
43.135.154.180	AS132203 Tencent Building, Kejizhongyi Avenue	`0.26ms` from San Jose, US
189.160.69.4	AS8151 UNINET	`10.84ms` from Santiago de Queretaro, MX
112.140.211.4	AS18318 LG HelloVision Corp.	`6.36ms` from Seoul, KR
121.173.64.4	AS4766 Korea Telecom	`1.86ms` from Seoul, KR
34.124.177.132	AS396982 Google LLC	`0.13ms` from Singapore, SG
58.110.116.68	AS4804 Microplex PTY LTD	`3.41ms` from Sydney, AU
120.117.131.84	AS1659 Taiwan Academic Network (TANet) Information Center	`5.57ms` from Taichung, TW
196.64.150.212	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`9.10ms` from Casablanca, MA
85.24.4.4	AS15516 DKTV A/S	`0.71ms` from Copenhagen, DK
87.104.53.148	AS44869 FIBIA P/S	`2.90ms` from Copenhagen, DK
181.199.154.68	AS27813 Teledifusora S.A.	`6.16ms` from Cordoba, AR
200.91.118.68	AS11830 Instituto Costarricense de Electricidad y Telecom.	`4.04ms` from Curridabat, CR
132.196.76.228	AS8075 Microsoft Corporation	`0.18ms` from Des Moines, US
98.209.207.68	AS7922 Comcast Cable Communications, LLC	`6.65ms` from Detroit, US
129.56.63.244	AS327952 NATCOM Development and Investment Limited	`0.38ms` from Frankfurt am Main, DE
217.116.192.52	AS49879 ISIK Bilgisayar Internet ve Yayincilik Hizmetleri	`9.01ms` from Istanbul, TR

Traceroute

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

traceroute -a -n -q1 -f2 -m10 166.3.135.79

traceroute to 166.3.135.79 (166.3.135.79): 10 hops max, 52 byte packets

2 [AS3356] 8.243.191.53 0.594 ms

3 *

4 [AS3356] 4.68.110.146 106.515 ms

5 *

6 [AS209] 205.171.210.34 149.592 ms

7 [AS209] 65.153.88.126 149.469 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Santiago, CL

On August 23rd 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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