166.91.0.0/16

AS33084 · DC-Net

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Summary

Country	United States
Domain	dc.gov
ASN	AS33084
Registry	ARIN
ID	DCPS-NET

WHOIS Details

NetHandle:      NET-166-91-0-0-1
OrgID:          DCPS
Parent:         NET-166-0-0-0-0
NetName:        DCPS-NET
NetRange:       166.91.0.0 - 166.91.255.255
NetType:        allocation
RegDate:        1993-11-18
Updated:        2021-12-14
TechHandle:     OES-ARIN
TechHandle:     OOE-ARIN
AbuseHandle:    DNEA-ARIN
NOCHandle:      DNEA-ARIN
Source:         ARIN


OrgID:          DCPS
OrgName:        District of Columbia Public Schools
CanAllocate:    
Street:         825 North Capital Street, N.E.
City:           Washington DC
State/Prov:     DC
Country:        US
PostalCode:     20002
RegDate:        1993-11-18
Updated:        2022-01-07
OrgAdminHandle: OOE-ARIN
OrgTechHandle:  OCTOP-ARIN
OrgTechHandle:  OOE-ARIN
OrgAbuseHandle: OOE-ARIN
OrgNOCHandle:   OOE-ARIN
Source:         ARIN


POCHandle:      OES-ARIN
IsRole:         N
LastName:       Esene
FirstName:      Ocee
Street:         825 North Capitol Street NE
Street:         Office of Information & Technology, Room 5002
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20002
RegDate:        2004-10-21
Updated:        2004-10-21
OfficePhone:    +1-202-442-5720
OfficePhone:    +1-202-442-5721
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      DNEA-ARIN
IsRole:         Y
LastName:       DCPS Network and Email Abuse
FirstName:      
Street:         825 North Capitol Street NE
Street:         Office of Information & Technology, Room 5002
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20002
RegDate:        2004-10-21
Updated:        2004-10-21
OfficePhone:    +1-202-442-5699
OfficePhone:    +1-202-442-5706
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      OOE-ARIN
IsRole:         N
LastName:       Esene
FirstName:      Ocee
Street:         1200 First Street,
Street:         N.E.
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20002
RegDate:        2012-03-07
Updated:        2022-01-07
OfficePhone:    +1-202-731-7789
MobilePhone:    +1-202-460-8777
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      OCTOP-ARIN
IsRole:         Y
LastName:       OCTO POC
FirstName:      
Street:         2720 Martin Luther King Jr Avenue, SE
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20032
RegDate:        2018-09-25
Updated:        2021-09-29
OfficePhone:    +1-202-724-2028
Mailbox:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 166.0.0.0/8

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

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

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

IP Address	ASN	Details
166.91.253.11	AS14072 Government of the District of Columbia	`1.84ms` from Ashburn, US
166.91.248.11	AS33084 DC-Net	`1.76ms` from Ashburn, US
166.91.10.25	AS33084 DC-Net	`2.15ms` from Ashburn, US
166.91.11.129	AS33084 DC-Net	`2.17ms` from Ashburn, US
166.91.1.5	AS33084 DC-Net	`2.15ms` from Ashburn, 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
86.97.94.16	AS5384 Emirates Internet	`4.83ms` from Al Fujairah City, AE
196.115.237.0	AS36925 MEDITELECOM	`2.76ms` from Casablanca, MA
75.166.122.240	AS209 CenturyLink Communications, LLC	`2.08ms` from Denver, US
125.211.84.48	AS4837 CHINA UNICOM China169 Backbone	`5.63ms` from Harbin, CN
69.152.87.0	AS7018 AT&T Enterprises, LLC	`8.16ms` from Kansas City, US
108.187.27.176	AS18978 Enzu Inc	`0.64ms` from Los Angeles, US
34.148.27.64	AS396982 Google LLC	`0.14ms` from Moncks Corner, US
124.226.61.112	AS4134 CHINANET-BACKBONE	`3.36ms` from Nanning, CN
128.189.162.224	AS393249 University of British Columbia	`4.35ms` from Seattle, US
43.130.240.240	AS132203 Tencent Building, Kejizhongyi Avenue	`1.17ms` from Tokyo, JP
5.206.254.128	AS57332 TOM-NET s.c. Dariusz Koper, Radoslaw Koper	`5.36ms` from Warsaw, PL
171.159.224.144	AS10794 Bank of America, National Association	`4.13ms` from Ashburn, US
34.218.36.240	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
150.161.31.16	AS1916 Rede Nacional de Ensino e Pesquisa	`3.08ms` from Campina Grande, BR
51.12.145.80	AS8075 Microsoft Corporation	`0.23ms` from Gaevle, SE
37.20.171.160	AS12389 PJSC Rostelecom	`13.18ms` from Krasnoyarsk, RU
180.74.246.128	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`4.74ms` from Kuala Lumpur, MY
18.175.50.160	AS16509 Amazon.com, Inc.	`0.52ms` from London, GB
81.141.103.208	AS2856 British Telecommunications PLC	`6.01ms` from London, GB
5.35.85.48	AS198610 Beget LLC	`9.65ms` from Moscow, RU
34.14.151.144	AS396982 Google LLC	`0.08ms` from Mumbai, IN
86.213.241.208	AS3215 Orange S.A.	`9.94ms` from Paris, FR
39.67.75.112	AS4837 CHINA UNICOM China169 Backbone	`7.87ms` from Qingdao, CN
1.116.86.240	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.49ms` from Shanghai, CN
77.138.8.0	AS12849 Hot-Net internet services Ltd.	`1.53ms` from Tel Aviv, IL

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 166.91.25.165

traceroute to 166.91.25.165 (166.91.25.165): 8 hops max, 52 byte packets

4 [AS3356] 4.69.220.26 60.512 ms

5 [AS3356] 4.79.23.14 61.348 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Fremont, US

On December 20th 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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