Autonomous System details

AS2152

CENIC · cenic.org

United States

BitTorrent

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AS2152 – CENIC

Field	Value
Country	United States
Website	cenic.org
Hosted domains	867
IPv4 addresses	2,075,392
IPv6 addresses	79,229,371,440,083,952,222,718,656,512
ASN type	Education
Registry	arin
Allocated	a year ago on Jul 08, 2024
Updated	a year ago on Jul 08, 2024

Netblock	Company	Num of IPs
130.65.0.0/16	San Jose State University	65,536
130.150.0.0/16	California State University, Office of the Chancellor	65,536
130.157.0.0/16	Sonoma State University	65,536
130.166.0.0/16	California State University, Northridge	65,536
130.182.0.0/16	California State University, Los Angeles	65,536
130.191.0.0/16	San Diego State University	65,536
130.212.0.0/16	San Francisco State University	65,536
132.241.0.0/16	California State University, Chico	65,536
134.139.0.0/16	California State University, Long Beach	65,536
134.154.0.0/16	California State University, East Bay	65,536
136.168.0.0/16	California State University Bakersfield	65,536
137.145.0.0/16	California State University, Office of the Chancellor	65,536
137.150.0.0/16	California State Polytechnic University, Humboldt	65,536
137.151.0.0/16	Cal State Fullerton	65,536
137.164.0.0/16	CENIC	65,536
139.182.0.0/16	California State University San Bernardino	65,536
144.37.0.0/16	California State University San Marcos	65,536
146.244.0.0/16	San Diego State University	65,536
147.144.0.0/16	City College of San Francisco	65,536
155.135.0.0/16	California State University, Dominguez Hills	65,536
165.196.0.0/16	Los Rios Community College District	65,536
198.188.0.0/16	CENIC	65,536
198.189.0.0/16	CENIC	65,536
204.102.0.0/16	CENIC	65,536
205.154.0.0/16	CENIC	65,536
205.155.0.0/16	CENIC	65,536
207.62.0.0/16	CENIC	65,536
209.129.0.0/16	CENIC	65,536
130.17.0.0/17	California State University, Stanislaus	32,768
130.17.128.0/17	California State University, Stanislaus	32,768
130.157.128.0/17	Sonoma State University	32,768
144.37.0.0/17	California State University San Marcos	32,768
144.37.128.0/17	California State University San Marcos	32,768
147.144.0.0/17	City College of San Francisco	32,768
147.144.128.0/17	City College of San Francisco	32,768
160.227.0.0/17	Grossmont-Cuyamaca Community College District	32,768
160.227.128.0/17	Grossmont-Cuyamaca Community College District	32,768
207.233.0.0/17	CENIC	32,768
209.188.128.0/17	San Mateo County Office of Education	32,768
130.157.64.0/18	Sonoma State University	16,384
130.157.0.0/19	Sonoma State University	8,192
130.157.32.0/19	Sonoma State University	8,192
206.224.224.0/19	Garden Grove Unified School District	8,192
64.39.112.0/20	Mendocino County Office of Education	4,096
165.74.16.0/20	State of California, Department of Education	4,096
76.78.96.0/21	APOG-SFSU	2,048
134.154.120.0/21	California State University, East Bay	2,048
137.164.32.0/21	CENIC	2,048
205.132.248.0/21	Sequoia Union High School District	2,048
137.164.40.0/22	CENIC	1,024
137.164.244.0/22	CENIC	1,024
137.164.248.0/22	CENIC	1,024
146.74.92.0/22	Santa Clara County	1,024
160.227.20.0/22	Grossmont-Cuyamaca Community College District	1,024
204.75.252.0/22	Rancho Santiago College	1,024
206.15.236.0/22	Yolo County Office of Education	1,024
206.78.236.0/22	Mariposa County Office of Education	1,024
69.48.214.0/23	California State University, Stanislaus	512
130.17.126.0/23	California State University, Stanislaus	512
137.151.252.0/23	Cal State Fullerton	512
137.164.242.0/23	CENIC	512
137.164.252.0/23	CENIC	512
204.75.250.0/23	Rancho Santiago College	512
206.15.224.0/23	Yolo County Office of Education	512
206.15.226.0/23	El Dorado County Office of Education	512
206.15.228.0/23	El Dorado County Office of Education	512
206.15.254.0/23	Nevada Union High School District	512
207.166.2.0/23	Nevada Union High School District	512
207.166.18.0/23	El Dorado County Office of Education	512
76.78.124.0/24	APOG-SFSU-24-1	256
76.78.125.0/24	APOG-SFSU-24-2	256
104.249.91.0/24	Orange County Department of Education	256
104.249.94.0/24	Orange County Department of Education	256
130.17.10.0/24	California State University, Stanislaus	256
130.166.51.0/24	California State University, Northridge	256
132.241.61.0/24	California State University, Chico	256
134.139.1.0/24	California State University, Long Beach	256
134.139.2.0/24	California State University, Long Beach	256
134.154.1.0/24	California State University, East Bay	256
134.154.2.0/24	California State University, East Bay	256
134.154.206.0/24	California State University, East Bay	256
134.154.222.0/24	California State University, East Bay	256
136.228.176.0/24	LUSD	256
137.164.16.0/24	CENIC	256
137.164.18.0/24	CENIC	256
137.164.20.0/24	CENIC	256
137.164.22.0/24	CENIC	256
137.164.23.0/24	CENIC	256
137.164.24.0/24	CENIC	256
137.164.29.0/24	CENIC	256
137.164.30.0/24	CENIC	256
137.164.31.0/24	CENIC	256
137.164.78.0/24	CENIC	256
137.164.84.0/24	CENIC	256
137.164.241.0/24	CENIC	256
137.164.254.0/24	CENIC	256
141.174.90.0/24	County of Yolo	256
146.244.150.0/24	San Diego State University	256
160.227.129.0/24	Grossmont-Cuyamaca Community College District	256
160.227.130.0/24	Grossmont-Cuyamaca Community College District	256
163.150.246.0/24	San Bernardino County Superintendent of Schools	256
192.86.78.0/24	Fullerton College Higher Education Center	256
192.104.166.0/24	Rancho Santiago College	256
192.111.213.0/24	Los Angeles Community College District	256
192.174.2.0/24	The Exploratorium	256
192.174.3.0/24	The Exploratorium	256
192.189.45.0/24	Rancho Santiago College	256
192.189.46.0/24	Rancho Santiago College	256
192.189.47.0/24	Rancho Santiago College	256
192.189.48.0/24	Rancho Santiago College	256
192.190.45.0/24	Moss Landing Marine Laboratory	256
192.207.184.0/24	California State University, East Bay	256
198.32.248.0/24	CyrusOne LLC	256
198.32.251.0/24	CyrusOne LLC	256
198.49.104.0/24	California State University, Chico	256
198.62.142.0/24	Kern Community College District	256
198.102.103.0/24	Sonoma County Library	256
198.137.151.0/24	College of the Siskiyous	256
198.175.250.0/24	Cuesta College	256
198.189.234.0/24	CSU Stanislaus	256
198.202.144.0/24	Mendocino College	256
198.202.145.0/24	Mendocino College	256
199.245.155.0/24	Cuesta College	256
204.17.179.0/24	Solano Community College District	256
204.48.132.0/24	Santa Barbara County Education Office	256
204.48.133.0/24	Santa Barbara County Education Office	256
204.69.1.0/24	Riverside Community College District	256
204.69.3.0/24	Riverside Community College District	256
204.69.4.0/24	Riverside Community College District	256
204.69.5.0/24	Riverside Community College District	256
204.69.6.0/24	Riverside Community College District	256
204.75.249.0/24	Rancho Santiago College	256
204.89.147.0/24	Nevada County Superintendent of Schools	256
206.15.235.0/24	Colusa County Office of Education	256
206.15.240.0/24	El Dorado County Office of Education	256
206.15.243.0/24	Yolo County Office of Education	256
206.15.245.0/24	Yolo County Office of Education	256
206.15.246.0/24	Yolo County Office of Education	256
206.15.251.0/24	Sutter County Office of Education	256
207.99.139.0/24	Antelope Valley Community College District	256
207.99.147.0/24	College of the Canyons - Santa Clarita CCD	256
207.166.0.0/24	Yuba County Office of Education	256
207.166.1.0/24	Yuba County Office of Education	256
207.166.9.0/24	El Dorado County Office of Education	256
207.166.20.0/24	El Dorado County Office of Education	256
207.166.22.0/24	Sutter County Office of Education	256
207.166.55.0/24	Yuba County Office of Education	256
207.166.58.0/24	Nevada Union High School District	256
207.166.60.0/24	Nevada Union High School District	256
207.166.62.0/24	El Dorado County Office of Education	256
209.132.147.0/24	Alameda County Office of Education	256
209.132.158.0/24	Alameda County Office of Education	256
209.132.159.0/24	Alameda County Office of Education	256
216.231.241.0/24	City of Escondido	256

Netblock	Company
2607:f380::/32	CENIC
2607:f380:a67::/48	CENIC

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IP Ranges API

WHOIS Details

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                                                ASHandle:       AS2152
                                                OrgID:          AS2152
                                                ASName:         AS2152
                                                ASNumber:       AS2152
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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IP WHOIS API & Database

Hosted Domains

There are 867 domain names hosted across 384 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
130.157.10.66	██████████	66
207.233.55.54	██████████	33
207.233.55.41	██████████	31
146.244.101.140	██████████	29
130.65.218.11	████████	25
205.154.226.40	██████████	14
130.166.238.195	████████	14
69.48.214.193	██████████	13
132.241.173.21	██████████	11
209.129.121.10	██████████	11

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Hosted Domains API & Database

Peers

There are 163 peers for this ASN.

Peers	Name
AS101	University of Washington
AS10294	Coast Community College District
AS10310	Yahoo Holdings Inc.
AS10867	Foothill-DeAnza Community College District
AS11159	Los Angeles Public Library
AS11164	Internet2
AS11188	LOS ANGELES COUNTY - INTERNAL SERVICESDIVISION
AS11293	University of California - Office of the President
AS11404	Wave Broadband
AS1280	Internet Systems Consortium, Inc.
AS131	University of California, Santa Barbara
AS132203	Tencent Building, Kejizhongyi Avenue
AS13285	TalkTalk Communications Limited
AS13335	Cloudflare, Inc.
AS13445	Cisco Webex LLC
AS13940	San Joaquin County Office of Education
AS13979	AT&T Enterprises, LLC
AS14041	University Corporation for Atmospheric Research
AS14061	DigitalOcean, LLC
AS1410	SMITH BAGLEY INC
AS14212	Santa Cruz County Office of Education
AS14213	Monterey County Office of Education
AS14255	University of San Diego
AS14265	TPx Communications
AS14593	Space Exploration Technologies Corporation
AS14907	Wikimedia Foundation Inc.
AS15169	Google LLC
AS16	Lawrence Berkeley National Laboratory
AS16276	OVH SAS
AS16509	Amazon.com, Inc.
AS16573	Santa Monica Community College District
AS17072	TOTAL PLAY TELECOMUNICACIONES SA DE CV
AS17369	Chapman University
AS1828	Unitas Global
AS18558	Riverside County Office of Education
AS18760	City of Rancho Cucamonga
AS18975	Stanislaus County Office of Education
AS19151	BroadbandONE, LLC
AS195	San Diego Supercomputer Center
AS19679	Dropbox, Inc.
AS199524	G-Core Labs S.A.
AS20115	Charter Communications LLC
AS2037	California State University at Fresno
AS20940	Akamai International B.V.
AS2153	CENIC
AS21545	Kings County Office of Education
AS21694	Fresno County Office of Education
AS21708	San Diego County Office of Education
AS21828	Tulare County Office of Education
AS21859	Zenlayer Inc
AS21915	Merced County Office of Education
AS22063	J. Paul Getty Trust
AS22226	San Francisco Unified School District
AS22315	San Bernardino County Superintendent of Schools
AS22323	University of California, Merced
AS22616	ZSCALER, INC.
AS22697	Roblox
AS22768	SYNERGY BROADBAND
AS23024	Orange County Department of Education
AS23065	Santa Barbara County Education Office
AS23117	Imperial County Office of Education
AS23309	Contra Costa County Office of Education
AS23323	Diablo Valley College
AS23369	Sonoma County Office of Education
AS23483	Shasta County Office of Education
AS23489	Marin County Office of Education
AS24	National Aeronautics and Space Administration
AS25	University of California at Berkeley
AS2516	KDDI CORPORATION
AS25664	Solano County Office of Education
AS257	Navy Network Information Center (NNIC)
AS26066	Napa Valley Unified School District
AS2635	Automattic, Inc
AS26403	Madera County Office of Education
AS26492	VCCCD
AS27502	Madera County Office of Education
AS2906	Netflix Streaming Services Inc.
AS2920	Los Angeles County Office of Education
AS29878	Community Hospital of the Monterey Peninsula
AS299	University of California, Irvine
AS30193	Los Angeles Unified School District
AS30679	California State Polytechnic University - Pomona
AS31	California Institute of Technology
AS31764	OAKLAND UNIFIED SCHOOL DISTRICT
AS31898	Oracle Corporation
AS32361	UltraLight
AS32590	Valve Corporation
AS3292	TDC Holding A/S
AS32933	Ceres Unified School District
AS32934	Facebook, Inc.
AS33353	Sony Interactive Entertainment LLC
AS3356	Level 3 Parent, LLC
AS33585	City of Newport Beach
AS36351	IBM Cloud
AS36692	Cisco OpenDNS, LLC
AS3734	Santa Clara County Office of Education
AS3786	LG DACOM Corporation
AS3856	Packet Clearing House, Inc.
AS393282	University of California at Berkeley
AS393425	California Academy of Sciences

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ASN API & Database

Upstreams

There are 5 upstreams for this ASN.

upstreams	Name
AS13335	Cloudflare, Inc.
AS3356	Level 3 Parent, LLC
AS396450	Internet2
AS6461	Zayo Bandwidth
AS6939	Hurricane Electric LLC

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ASN API & Database

Downstreams

There are 85 downstreams for this ASN.

Downstreams	Name
AS10294	Coast Community College District
AS10867	Foothill-DeAnza Community College District
AS11159	Los Angeles Public Library
AS11188	LOS ANGELES COUNTY - INTERNAL SERVICESDIVISION
AS11293	University of California - Office of the President
AS131	University of California, Santa Barbara
AS13940	San Joaquin County Office of Education
AS14212	Santa Cruz County Office of Education
AS14255	University of San Diego
AS16	Lawrence Berkeley National Laboratory
AS16573	Santa Monica Community College District
AS17369	Chapman University
AS18558	Riverside County Office of Education
AS18760	City of Rancho Cucamonga
AS18975	Stanislaus County Office of Education
AS195	San Diego Supercomputer Center
AS2037	California State University at Fresno
AS21545	Kings County Office of Education
AS21694	Fresno County Office of Education
AS21708	San Diego County Office of Education
AS21828	Tulare County Office of Education
AS21915	Merced County Office of Education
AS22063	J. Paul Getty Trust
AS22226	San Francisco Unified School District
AS22315	San Bernardino County Superintendent of Schools
AS22323	University of California, Merced
AS23024	Orange County Department of Education
AS23065	Santa Barbara County Education Office
AS23117	Imperial County Office of Education
AS23309	Contra Costa County Office of Education
AS23323	Diablo Valley College
AS23369	Sonoma County Office of Education
AS23483	Shasta County Office of Education
AS23489	Marin County Office of Education
AS25	University of California at Berkeley
AS25664	Solano County Office of Education
AS257	Navy Network Information Center (NNIC)
AS26066	Napa Valley Unified School District
AS26403	Madera County Office of Education
AS27502	Madera County Office of Education
AS2920	Los Angeles County Office of Education
AS29878	Community Hospital of the Monterey Peninsula
AS299	University of California, Irvine
AS30193	Los Angeles Unified School District
AS30679	California State Polytechnic University - Pomona
AS31	California Institute of Technology
AS31764	OAKLAND UNIFIED SCHOOL DISTRICT
AS32361	UltraLight
AS32933	Ceres Unified School District
AS3356	Level 3 Parent, LLC
AS3734	Santa Clara County Office of Education
AS393282	University of California at Berkeley
AS393425	California Academy of Sciences
AS394435	Alameda County Library
AS395226	Sacramento County Office of Education
AS396310	San Diego State University
AS396465	California State University, Sacramento
AS39941	Pacific Wave
AS399574	Riverside Community College District
AS40498	New Mexico Lambda Rail, Inc.
AS46290	MtSAC
AS46357	California Polytechnic State University
AS46425	Salinas Valley Memorial Hospital
AS46749	Stanford University
AS46985	The Regents of the University of California - University of California, San Diego.
AS52	University of California, Los Angeles
AS54048	Vast Networks
AS54179	Ventura County Office of Education
AS54192	Montebello Unified School District
AS55032	The Jackson Laboratory
AS5653	University of California San Francisco
AS567	Los Nettos
AS5739	University of California, Santa Cruz
AS5783	Kern County Superintendent of Schools
AS6099	Alameda County Office of Education
AS6106	University of California, Riverside
AS6192	University of California, Davis
AS63331	Lawrence Berkeley National Laboratory
AS63435	County of Monterey
AS6360	University of Hawaii
AS6461	Zayo Bandwidth
AS6492	Palomar Community College District
AS7377	University of California, San Diego
AS7941	Internet Archive
AS7960	California Polytechnic State University

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
139.182.86.112	AS2152 CENIC	`2.70ms` from Los Angeles, US
209.129.125.241	AS2152 CENIC	`3.44ms` from Los Angeles, US
137.145.10.113	AS2152 CENIC	`1.69ms` from Los Angeles, US
207.233.85.189	AS2152 CENIC	`1.83ms` from Los Angeles, US
137.164.222.56	AS2152 CENIC	`13.39ms` from Los Angeles, US
139.182.252.1	AS2152 CENIC	`2.66ms` from Los Angeles, US
136.168.52.198	AS2152 CENIC	`7.72ms` from Los Angeles, US
139.182.220.1	AS2152 CENIC	`2.71ms` from Los Angeles, US
134.139.197.3	AS2152 CENIC	`2.69ms` from Los Angeles, US
136.168.123.1	AS2152 CENIC	`6.56ms` from Los Angeles, US
198.189.255.72	AS2152 CENIC	`0.40ms` from Los Angeles, US
136.168.1.91	AS2152 CENIC	`6.45ms` from Los Angeles, US
139.182.63.1	AS2152 CENIC	`2.68ms` from Los Angeles, US
136.168.231.1	AS2152 CENIC	`6.52ms` from Los Angeles, US
198.189.24.5	AS2152 CENIC	`9.76ms` from Los Angeles, US
209.129.58.206	AS2152 CENIC	`5.60ms` from Los Angeles, US
136.168.148.60	AS2152 CENIC	`6.49ms` from Los Angeles, US
136.168.3.240	AS2152 CENIC	`6.56ms` from Los Angeles, US
130.166.240.202	AS2152 CENIC	`1.57ms` from Los Angeles, US
136.168.216.1	AS2152 CENIC	`6.49ms` from Los Angeles, US
134.139.50.145	AS2152 CENIC	`1.75ms` from Los Angeles, US
136.168.90.114	AS2152 CENIC	`8.99ms` from Los Angeles, US
209.129.10.199	AS2152 CENIC	`2.24ms` from Los Angeles, US
198.189.201.1	AS2152 CENIC	`10.22ms` from Los Angeles, US
139.182.112.1	AS2152 CENIC	`2.70ms` from Los Angeles, 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
181.27.103.216	AS22927 Telefonica de Argentina	`2.55ms` from Buenos Aires, AR
150.165.180.232	AS1916 Rede Nacional de Ensino e Pesquisa	`2.69ms` from Campina Grande, BR
122.156.149.40	AS4837 CHINA UNICOM China169 Backbone	`17.96ms` from Changchun, CN
158.101.167.136	AS31898 Oracle Corporation	`0.48ms` from Frankfurt am Main, DE
113.239.248.152	AS4837 CHINA UNICOM China169 Backbone	`14.68ms` from Liaoyang, CN
196.203.250.8	AS37551 ATI - Agence Tunisienne Internet	`19.42ms` from Milan, IT
34.139.184.200	AS396982 Google LLC	`0.16ms` from Moncks Corner, US
46.85.115.216	AS3320 Deutsche Telekom AG	`6.51ms` from Nuernberg, DE
34.6.248.104	AS396982 Google LLC	`0.14ms` from Oudeschip, NL
67.199.66.120	AS14992 NewtekOne, Inc.	`1.89ms` from Phoenix, US
123.128.23.88	AS4837 CHINA UNICOM China169 Backbone	`5.63ms` from Qingdao, CN
96.54.119.8	AS6327 Shaw Communications	`10.25ms` from Seattle, US
125.140.176.56	AS4766 Korea Telecom	`3.13ms` from Seoul, KR
222.109.26.120	AS4766 Korea Telecom	`1.52ms` from Seoul, KR
175.251.116.120	AS4766 Korea Telecom	`5.93ms` from Seoul, KR
122.117.133.40	AS3462 Data Communication Business Group	`3.88ms` from Taichung, TW
3.115.15.24	AS16509 Amazon.com, Inc.	`1.19ms` from Tokyo, JP
70.161.217.184	AS22773 Cox Communications Inc.	`9.63ms` from Ashburn, US
75.190.191.216	AS11426 Charter Communications Inc	`11.39ms` from Charlotte, US
187.144.21.200	AS8151 UNINET	`6.59ms` from Guadalajara, MX
204.138.102.8	AS10908 CloudfloorDNS	`0.26ms` from Hong Kong, HK
119.247.179.232	AS9269 Hong Kong Broadband Network Ltd.	`1.18ms` from Hong Kong, HK
47.157.171.72	AS5650 Frontier Communications of America, Inc.	`4.10ms` from Los Angeles, US
72.19.68.8	AS1249 University of Massachusetts - AMHERST	`8.90ms` from New York City, US
219.100.71.72	AS10011 advanscope inc.	`2.33ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f5 -m11 207.233.19.60

traceroute to 207.233.19.60 (207.233.19.60): 11 hops max, 52 byte packets

5 [AS3356] 4.69.207.45 260.352 ms

6 *

7 *

8 [AS2152] 137.164.5.217 273.303 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Abidjan, CI

On November 28th 2025

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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 AS2152 at robtex.

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