1. All IP Ranges
  2. 166.0.0.0/8
  3. AS4155  | 166.4.0.0/15

166.4.0.0/15

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:      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


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

Nearby Ranges

BGP prefixes that overlap with 166.0.0.0/8

Range ASN Company Num of IPs
166.117.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.104.0.0/16 AS9321 Hanyang University 65,536
166.89.0.0/16 AS13918 City of Tucson 65,536
166.92.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.58.0.0/16 AS3372 Verizon Business 65,536
166.123.0.0/16 AS13506 United States Department of the Treasury 65,536
166.69.0.0/16 AS19773 Motorola MNIC 65,536
166.74.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.211.0.0/16 AS22394 Verizon Business 65,536
166.91.0.0/16 AS14072 District of Columbia Public Schools 65,536
166.84.0.0/16 AS2033 Panix 65,536
166.90.0.0/16 AS3257 Level 3 Parent, LLC 65,536
166.91.0.0/16 AS33084 District of Columbia Public Schools 65,536
166.56.0.0/16 AS3372 Verizon Business 65,536
166.100.0.0/16 AS2687 AT&T Japan K.K. 65,536
166.80.0.0/16 AS16509 Amazon.com, Inc. 65,536
166.93.0.0/16 AS26914 Synoptek, LLC 65,536
166.58.0.0/16 AS3371 Verizon Business 65,536
166.90.0.0/16 AS3356 Level 3 Parent, LLC 65,536
166.238.0.0/16 AS26611 COMUNICACIÓN CELULAR S.A. COMCEL S.A. 65,536
166.56.0.0/16 AS3371 Verizon Business 65,536
166.19.0.0/16 AS33425 CoreWeave, Inc 65,536
166.58.0.0/16 AS3377 Verizon Business 65,536
166.20.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
166.211.0.0/16 AS6167 Verizon Business 65,536
166.87.0.0/16 AS5080 Saudi Arabian Oil Company 65,536
166.99.0.0/16 AS11719 Eaton Corporation 65,536
166.111.0.0/16 AS4538 Tsinghua University 65,536
166.82.0.0/16 AS7029 Windstream Communications LLC 65,536
166.72.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
166.102.0.0/16 AS7029 Windstream Communications LLC 65,536
166.122.0.0/16 AS6360 University of Hawaii 65,536
166.94.0.0/16 AS3926 Fairfax County Government 65,536
166.70.0.0/16 AS6315 XMission, L.C. 65,536
166.49.128.0/17 AS5400 communications networking services Private Unlimited Company 32,768
166.62.128.0/17 AS5769 Videotron Ltee 32,768
166.48.0.0/17 AS396338 Altima Telecom 32,768
166.114.128.0/17 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 32,768
166.49.0.0/17 AS3561 CenturyLink Communications, LLC 32,768
166.108.128.0/18 AS35077 Netwo SAS 16,384
166.113.64.0/18 AS53449 OEC Fiber 16,384
166.114.64.0/18 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 16,384
166.114.32.0/19 AS6568 EMPRESA NACIONAL DE TELECOMUNICACIONES SOCIEDAD ANONIMA 8,192
166.63.128.0/19 AS3561 CenturyLink Communications, LLC 8,192
166.113.32.0/19 AS13370 Ziply Fiber 8,192
166.63.192.0/19 AS1273 Vodafone Americas 8,192
166.113.0.0/19 AS19870 Cherry Creek School District #5 8,192
166.108.0.0/19 AS16509 Amazon.com, Inc. 8,192
166.63.160.0/19 AS1273 Vodafone Americas 8,192
166.93.0.0/20 AS26914 Synoptek Pittsford DC 4,096

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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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
97.181.109.143 AS6167 Verizon Business 12.06ms from Atlanta, US
195.228.237.15 AS5483 Magyar Telekom Plc. 11.13ms from Budapest, HU
75.183.22.95 AS11426 Charter Communications Inc 7.49ms from Charlotte, US
99.71.205.95 AS7018 AT&T Enterprises, LLC 2.51ms from Dallas, US
172.13.183.47 AS7018 AT&T Enterprises, LLC 5.55ms from Los Angeles, US
187.93.22.143 AS10429 TELEFÔNICA BRASIL S.A 0.88ms from Osasco, BR
52.1.153.79 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
117.243.119.31 AS9829 National Internet Backbone 10.02ms from Saint Thomas Mount, IN
107.195.110.223 AS7018 AT&T Enterprises, LLC 3.79ms from San Antonio, US
85.146.32.207 AS50266 Odido Netherlands B.V. 4.29ms from Amsterdam, NL
101.20.79.255 AS4837 CHINA UNICOM China169 Backbone 3.53ms from Beijing, CN
62.114.123.31 AS36992 ETISALAT MISR 12.01ms from Cairo, EG
107.199.141.143 AS7018 AT&T Enterprises, LLC 10.76ms from Chicago, US
43.100.102.15 AS45102 Alibaba (US) Technology Co., Ltd. 0.62ms from Hong Kong, HK
223.28.139.255 AS17597 SK Broadband Co Ltd 1.35ms from Incheon, KR
112.183.151.79 AS4766 Korea Telecom 5.27ms from Incheon, KR
47.145.109.239 AS5650 Frontier Communications of America, Inc. 2.63ms from Los Angeles, US
2.102.3.143 AS13285 TalkTalk Communications Limited 5.94ms from Manchester, GB
20.11.214.15 AS8075 Microsoft Corporation 0.53ms from Melbourne, AU
94.241.29.111 AS12389 PJSC Rostelecom 6.91ms from Moscow, RU
126.23.208.223 AS17676 SoftBank Corp. 4.12ms from Osaka, JP
39.83.113.175 AS4837 CHINA UNICOM China169 Backbone 6.66ms from Qingdao, CN
212.21.132.175 AS41313 "NOVATEL" EOOD 1.86ms from Sofia, BG
40.27.202.191 AS5650 Frontier Communications of America, Inc. 0.25ms from Ashburn, US
54.218.91.207 AS16509 Amazon.com, Inc. 0.20ms from Boardman, US

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 166.5.121.4
traceroute to 166.5.121.4 (166.5.121.4): 7 hops max, 52 byte packets
4 [AS9002] 87.245.246.86 0.337 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Brno, CZ
On

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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