205.155.0.0/16

AS2152 · CENIC

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Summary

Country	United States
Domain	cenic.org
ASN	AS2152
Registry	ARIN
ID	CENIC

WHOIS Details

NetHandle:      NET-205-155-0-0-1
OrgID:          CENIC
Parent:         NET-205-0-0-0-0
NetName:        CENIC
NetRange:       205.155.0.0 - 205.155.255.255
NetType:        allocation
RegDate:        2024-07-08
Updated:        2024-07-08
Source:         ARIN


OrgID:          CENIC
OrgName:        CENIC
CanAllocate:    
Street:         5757 Plaza Drive, Suite 205
City:           Cypress
State/Prov:     CA
Country:        US
PostalCode:     90630-5029
RegDate:        1998-08-18
Updated:        2024-11-25
OrgAdminHandle: DOMAI64-ARIN
OrgTechHandle:  OPERA63-ARIN
OrgAbuseHandle: ABUSE711-ARIN
Source:         ARIN


POCHandle:      DOMAI64-ARIN
IsRole:         Y
LastName:       Admin Domain
FirstName:      
Street:         16700 Valley View Ave.
Street:         Suite 400
City:           La Mirada
State/Prov:     CA
Country:        US
PostalCode:     90638
RegDate:        2004-03-25
Updated:        2024-10-25
OfficePhone:    +1-714-220-3494
Mailbox:        domainadmin@cenic.org
Source:         ARIN


POCHandle:      OPERA63-ARIN
IsRole:         Y
LastName:       Admin Domain
FirstName:      
Street:         16700 Valley View Ave.
Street:         Suite 400
City:           La Mirada
State/Prov:     CA
Country:        US
PostalCode:     90638
RegDate:        2004-03-25
Updated:        2025-01-07
OfficePhone:    +1-714-220-3494
Mailbox:        core-ext@lists.cenic.org
Source:         ARIN


POCHandle:      ABUSE711-ARIN
IsRole:         Y
LastName:       CENIC Abuse
FirstName:      
Street:         16700 Valley View Ave.
Street:         Suite 400
City:           La Mirada
State/Prov:     CA
Country:        US
PostalCode:     90638
RegDate:        2004-09-17
Updated:        2024-11-06
OfficePhone:    +1-714-220-3494
Mailbox:        abuse@cenic.org
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 205.155.0.0/16

Range	ASN	Company	Num of IPs
205.155.142.0/24	AS2152	California Community College Chancellor's Office	256
205.155.141.0/24	AS2152	Butte Community College District	256
205.155.150.0/24	AS2152	California Community College Chancellor's Office	256
205.155.158.0/23	AS2152	Butte Community College District	512
205.155.92.0/23	AS2152	CSU Chico	512
205.155.240.0/20	AS14212	Santa Cruz COE	4,096
205.155.32.0/19	AS14213	Monterey COE	8,192
205.155.0.0/19	AS14212	Santa Cruz COE	8,192

Hosted domains

There are 34 domain names hosted across 27 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
205.155.75.57	ccamp.org	4
205.155.75.83	ccamp.org	3
205.155.68.104	montereywaterinfo.com	2
205.155.237.37	santacruzpl.site	2
205.155.237.132	stockton.lib.ca.us	2
205.155.143.52	ylpl.org	2
205.155.71.53	isearchmonterey.org	1
205.155.143.22	snap.lib.ca.us	1
205.155.167.200	cteonline.org	1
205.155.65.113	researchsymposium.org	1
205.155.65.12	globalecco.org	1
205.155.95.108	grupaheinz.com	1
205.155.65.124	researchsymposium.com	1
205.155.53.150	monterey.k12.ca.us	1
205.155.33.46	chualar.k12.ca.us	1
205.155.71.4	mymontereyportal.org	1
205.155.43.17	gonzales.k12.ca.us	1
205.155.143.148	librarygalleria.com	1
205.155.37.132	pgusd.k12.ca.us	1
205.155.53.90	santaritausd.k12.ca.us	1

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

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

IP Address	ASN	Details
205.155.143.34	AS2152 CENIC	`2.23ms` from Los Angeles, US
205.155.70.174	AS2152 CENIC	`4.08ms` from San Jose, US
205.155.48.1	AS14213 Monterey County Office of Education	`4.08ms` from San Jose, US
205.155.165.11	AS2152 CENIC	`9.77ms` from San Jose, US
205.155.7.2	AS14212 Santa Cruz County Office of Education	`4.59ms` from San Jose, US
205.155.226.100	AS2152 CENIC	`4.91ms` from San Jose, US
205.155.75.83	AS2152 CENIC	`5.85ms` from San Jose, US
205.155.73.8	AS2152 CENIC	`4.92ms` from San Jose, US
205.155.151.48	AS2152 CENIC	`8.20ms` from Los Angeles, US
205.155.47.65	AS14213 Monterey County Office of Education	`3.12ms` from San Jose, US
205.155.49.1	AS14213 Monterey County Office of Education	`4.21ms` from San Jose, US
205.155.144.15	AS2152 CENIC	`2.68ms` from San Jose, US
205.155.240.213	AS14212 Santa Cruz County Office of Education	`7.74ms` from San Jose, US
205.155.234.2	AS2152 CENIC	`4.22ms` from San Jose, US
205.155.68.30	AS2152 CENIC	`3.97ms` from San Jose, US
205.155.53.123	AS14213 Monterey County Office of Education	`2.79ms` from San Jose, US
205.155.225.254	AS2152 CENIC	`4.32ms` from San Jose, US
205.155.239.110	AS2152 CENIC	`1.81ms` from Los Angeles, US
205.155.33.17	AS14213 Monterey County Office of Education	`4.56ms` from San Jose, US
205.155.228.49	AS2152 CENIC	`4.13ms` from San Jose, US
205.155.167.195	AS2152 CENIC	`9.51ms` from San Jose, US
205.155.156.252	AS2152 CENIC	`4.09ms` from San Jose, US
205.155.236.10	AS2152 CENIC	`1.89ms` from Los Angeles, US
205.155.36.150	AS14213 Monterey County Office of Education	`2.92ms` from San Jose, US
205.155.233.4	AS2152 CENIC	`4.03ms` from San Jose, 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
130.89.182.0	AS1133 University Twente	`3.42ms` from Amsterdam, NL
27.44.230.80	AS17816 China Unicom IP network China169 Guangdong province	`5.92ms` from Guangzhou, CN
115.73.130.128	AS7552 Viettel Group	`1.06ms` from Ho Chi Minh City, VN
105.75.212.224	AS36884 Wana Corporate	`15.32ms` from Madrid, ES
87.25.239.0	AS3269 Telecom Italia S.p.A.	`15.05ms` from Milan, IT
46.72.222.16	AS12714 PJSC MegaFon	`10.10ms` from Moscow, RU
85.141.130.160	AS8359 MTS PJSC	`13.76ms` from Moscow, RU
23.208.38.192	AS16625 Akamai Technologies, Inc.	`0.16ms` from Philadelphia, US
125.186.178.112	AS17858 LG POWERCOMM	`1.45ms` from Seoul, KR
211.174.6.0	AS18310 SK Broadband Co Ltd	`1.08ms` from Seoul, KR
180.80.178.48	AS9316 DACOM-PUBNETPLUS	`2.23ms` from Seoul, KR
90.229.39.208	AS3301 Telia Company AB	`0.52ms` from Stockholm, SE
50.83.66.192	AS30036 Mediacom Communications Corp	`11.99ms` from Chicago, US
34.134.118.0	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
54.170.142.240	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
14.224.102.176	AS45899 VNPT Corp	`4.36ms` from Hanoi, VN
2.63.55.96	AS12389 PJSC Rostelecom	`0.81ms` from Krasnoyarsk, RU
5.65.201.0	AS5607 Sky UK Limited	`13.10ms` from London, GB
85.49.206.16	AS12479 Orange Espagne SA	`9.83ms` from Madrid, ES
155.248.140.128	AS31898 Oracle Corporation	`0.12ms` from Madrid, ES
72.195.227.192	AS22773 Cox Communications Inc.	`6.11ms` from Phoenix, US
43.153.117.128	AS132203 Tencent Building, Kejizhongyi Avenue	`0.28ms` from San Jose, US
14.95.40.192	AS4766 Korea Telecom	`1.85ms` from Seoul, KR
121.224.16.80	AS4134 CHINANET-BACKBONE	`7.19ms` from Shanghai, CN
81.132.125.128	AS2856 British Telecommunications PLC	`8.75ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -m11 205.155.100.92

traceroute to 205.155.100.92 (205.155.100.92): 11 hops max, 52 byte packets

1 [AS63023] 69.50.92.1 0.332 ms

2 [AS6461] 216.200.184.105 0.23 ms

3 [AS6461] 64.125.30.38 25.343 ms

4 *

5 *

6 *

7 *

8 [AS2152] 137.164.41.42 39.21 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Denver, US

On September 4th 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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