166.5.28.0/23

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

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Useful for Cybersecurity

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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
24.166.119.103	AS10796 Charter Communications Inc	`13.57ms` from Columbus, US
64.92.45.71	AS6300 Consolidated Communications, Inc.	`7.39ms` from Dallas, US
34.245.121.87	AS16509 Amazon.com, Inc.	`0.46ms` from Dublin, IE
213.202.185.87	AS2110 BT Communications Ireland Limited	`1.56ms` from Dublin, IE
113.180.42.87	AS45899 VNPT Corp	`4.91ms` from Ho Chi Minh City, VN
45.87.103.7	AS53808 MoeDove	`0.47ms` from Hong Kong, HK
51.146.181.119	AS5607 Sky UK Limited	`11.48ms` from London, GB
201.233.9.119	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`7.80ms` from Medellin, CO
191.112.17.87	AS7418 TELEFÓNICA CHILE S.A.	`3.61ms` from Santiago, CL
118.47.238.119	AS4766 Korea Telecom	`3.37ms` from Seoul, KR
178.39.48.87	AS6730 Sunrise GmbH	`1.28ms` from Zuerich, CH
37.97.151.87	AS20857 Signet B.V.	`0.65ms` from Amsterdam, NL
65.190.85.87	AS11426 Charter Communications Inc	`9.74ms` from Ashburn, US
109.92.26.215	AS8400 TELEKOM SRBIJA a.d.	`0.90ms` from Belgrade, RS
181.84.123.119	AS7303 Telecom Argentina S.A.	`1.74ms` from Buenos Aires, AR
50.82.148.87	AS30036 Mediacom Communications Corp	`6.81ms` from Chicago, US
87.160.231.39	AS3320 Deutsche Telekom AG	`5.21ms` from Frankfurt am Main, DE
93.239.189.151	AS3320 Deutsche Telekom AG	`5.04ms` from Frankfurt am Main, DE
93.221.149.39	AS3320 Deutsche Telekom AG	`2.66ms` from Frankfurt am Main, DE
42.115.128.247	AS18403 FPT Telecom Company	`12.09ms` from Ho Chi Minh City, VN
34.92.187.199	AS396982 Google LLC	`0.11ms` from Hong Kong, HK
112.205.193.247	AS9299 Philippine Long Distance Telephone Company	`0.86ms` from Manila, PH
3.111.103.215	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
175.200.10.167	AS4766 Korea Telecom	`7.19ms` from Seoul, KR
221.167.13.151	AS4766 Korea Telecom	`7.78ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f4 -m8 166.5.29.38

traceroute to 166.5.29.38 (166.5.29.38): 8 hops max, 52 byte packets

4 [AS3257] 212.115.170.129 6.886 ms

5 [AS3257] 213.200.112.173 85.18 ms

6 *

7 *

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Measurement taken from

IPinfo ProbeNet in Brussels, BE

On August 22nd 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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