1. All IP Ranges
  2. 131.0.0.0/8
  3. 131.243.0.0/16
  4. AS16  | 131.243.0.0/16

131.243.0.0/16

AS16  ·  Lawrence Berkeley National Laboratory

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Summary

Country United States
Domain lbl.gov
ASN AS16
Registry ARIN
ID LBL-IP-NET2

WHOIS Details

NetHandle:      NET-131-243-0-0-1
OrgID:          LBNL-Z
Parent:         NET-131-0-0-0-0
NetName:        LBL-IP-NET2
NetRange:       131.243.0.0 - 131.243.255.255
NetType:        allocation
Comment:        Please direct SPAM queries to [email protected].
Comment:        Please direct ABUSE queries to [email protected].
RegDate:        1989-02-08
Updated:        2024-12-30
Source:         ARIN


OrgID:          LBNL-Z
OrgName:        Lawrence Berkeley National Laboratory
CanAllocate:    
Street:         One Cyclotron Road
City:           Berkeley
State/Prov:     CA
Country:        US
PostalCode:     94720
Comment:        Please direct SPAM related queries to [email protected]
Comment:        Please direct ABUSE related queries to [email protected]
RegDate:        2019-02-11
Updated:        2024-06-06
OrgAdminHandle: STROM17-ARIN
OrgTechHandle:  SIMON407-ARIN
OrgAbuseHandle: CPP-ARIN
Source:         ARIN


POCHandle:      SIMON407-ARIN
IsRole:         N
LastName:       Simon
FirstName:      Richard
Street:         1 Cyclotron Road
City:           Berkeley
State/Prov:     CA
Country:        US
PostalCode:     94720
RegDate:        2023-06-05
Updated:        2023-06-05
OfficePhone:    +1-510-486-5585
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      STROM17-ARIN
IsRole:         N
LastName:       Stromsness
FirstName:      Rune
Street:         1 Cyclotron Road
City:           Berkeley
State/Prov:     CA
Country:        US
PostalCode:     94720
RegDate:        2014-11-07
Updated:        2025-07-16
OfficePhone:    +1-510-486-5095
Mailbox:        [email protected]
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      CPP-ARIN
IsRole:         Y
LastName:       Computer Protection Program
FirstName:      
Street:         One Cyclotron Road
Street:         Mail Stop 50B-2239A
City:           Berkeley
State/Prov:     CA
Country:        US
PostalCode:     94720
RegDate:        2010-04-06
Updated:        2025-02-19
OfficePhone:    +1-510-486-7770
Mailbox:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 131.0.0.0/8

Range ASN Company Num of IPs
131.244.0.0/15 AS24014 Bond University Limited 131,072
131.171.0.0/16 AS22877 University of Maryland Global Campus 65,536
131.123.0.0/16 AS11050 Kent State University 65,536
131.194.0.0/16 AS19342 Trinity University 65,536
131.159.0.0/16 AS209335 Technical University of Munich 65,536
131.1.0.0/16 AS20746 OLIVETTI S.p.A. 65,536
131.127.0.0/16 AS16509 Amazon.com, Inc. 65,536
131.115.0.0/16 AS1729 Telia Company AB 65,536
131.177.0.0/16 AS1759 Telia Finland Oyj 65,536
131.128.0.0/16 AS14348 University of Rhode Island 65,536
131.183.0.0/16 AS2025 University of Toledo 65,536
131.175.0.0/16 AS198949 CINECA Consorzio Interuniversitario 65,536
131.93.0.0/16 AS20115 Charter Communications LLC 65,536
131.254.0.0/16 AS1938 Institut National de Recherche en Informatique et Automatique de Rennes 65,536
131.109.0.0/16 AS14464 Rhode Island Network for Educ. Technology 65,536
131.230.0.0/16 AS15119 Southern Illinois University Carbondale 65,536
131.160.0.0/16 AS158 Oy L M Ericsson Ab 65,536
131.68.0.0/16 AS138 DoD Network Information Center 65,536
131.168.0.0/16 AS16509 Amazon.com, Inc. 65,536
131.116.0.0/16 AS1729 Telia Company AB 65,536
131.169.0.0/16 AS1754 Deutsches Elektronen-Synchrotron DESY 65,536
131.211.0.0/16 AS1103 Heidelberglaan 8 65,536
131.96.0.0/16 AS10631 Georgia State University 65,536
131.156.0.0/16 AS11417 Northern Illinois University 65,536
131.197.0.0/16 AS19773 Motorola - Network Computing Services 65,536
131.239.0.0/16 AS11426 Crown Castle Fiber LLC 65,536
131.224.0.0/16 AS1103 Rijksinstituut voor Volksgezondheid en Milieuhygiene 65,536
131.155.0.0/16 AS1161 P.O. Box 513 65,536
131.246.0.0/16 AS199578 Rheinland-Pfaelzische Technische Universitaet Kaiserslautern-Landau 65,536
131.212.0.0/16 AS217 University of Minnesota 65,536
131.203.0.0/16 AS132264 Two Degrees Mobile Limited 65,536
131.190.0.0/16 AS11003 The Procter and Gamble Company 65,536
131.167.0.0/16 AS13335 BATTELLE MEMORIAL INSTITUTE 65,536
131.180.0.0/16 AS1128 P.O. Box 354 65,536
131.230.0.0/16 AS15118 Southern Illinois University Carbondale 65,536
131.198.0.0/16 AS1341 Rockwell Collins, Inc. 65,536
131.199.0.0/16 AS1341 Rockwell Collins, Inc. 65,536
131.203.0.0/16 AS134359 Two Degrees Mobile Limited 65,536
131.174.0.0/16 AS1103 Radboud Universiteit Nijmegen 65,536
131.91.0.0/16 AS12013 Florida Atlantic University 65,536
131.67.0.0/16 AS138 DoD Network Information Center 65,536
131.151.0.0/16 AS11348 Missouri University of Science and Technology 65,536
131.172.0.0/16 AS135893 LATROBE UNIVERSITY 65,536
131.142.0.0/16 AS1742 Smithsonian Astrophysical Observatory 65,536
131.114.0.0/16 AS137 UNI-Pisa 65,536
131.154.0.0/16 AS137 INFN - CNAF - Bologna 65,536
131.175.0.0/16 AS137 CINECA Consorzio Interuniversitario 65,536
131.66.0.0/16 AS138 DoD Network Information Center 65,536
131.187.0.0/16 AS22320 OARnet 65,536

Hosted domains

There are 25 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
131.243.244.98 smart-energy-analytics.org 7
131.243.130.71 transformbuildings.us 5
131.243.193.109 berkeley-bop.org 3
131.243.192.69 obolibrary.net 3
131.243.10.134 ullisch.dk 2
131.243.228.58 lbl.gov 1
131.243.44.186 arrowland.org 1
131.243.192.37 termgenie.org 1
131.243.2.76 fluxdata.org 1
131.243.44.68 webofregistries.org 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

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

IP Address ASN Details
131.243.14.191 AS16 Lawrence Berkeley National Laboratory 20.34ms from Phoenix, US
131.243.32.127 AS16 Lawrence Berkeley National Laboratory 24.16ms from Seattle, US
131.243.48.41 AS16 Lawrence Berkeley National Laboratory 20.52ms from Seattle, US
131.243.42.1 AS16 Lawrence Berkeley National Laboratory 20.36ms from Phoenix, US
131.243.2.17 AS16 Lawrence Berkeley National Laboratory 2.87ms from San Jose, US
131.243.44.118 AS16 Lawrence Berkeley National Laboratory 3.56ms from San Jose, US
131.243.30.70 AS16 Lawrence Berkeley National Laboratory 20.56ms from Seattle, US
131.243.19.123 AS16 Lawrence Berkeley National Laboratory 4.33ms from Santa Clara, US
131.243.28.58 AS16 Lawrence Berkeley National Laboratory 4.10ms from San Jose, US
131.243.5.1 AS16 Lawrence Berkeley National Laboratory 20.25ms from Phoenix, US
131.243.18.87 AS16 Lawrence Berkeley National Laboratory 3.31ms from San Jose, US
131.243.16.137 AS16 Lawrence Berkeley National Laboratory 20.41ms from Phoenix, US
131.243.34.164 AS16 Lawrence Berkeley National Laboratory 20.66ms from Seattle, US
131.243.47.139 AS16 Lawrence Berkeley National Laboratory 21.68ms from Seattle, US
131.243.21.209 AS16 Lawrence Berkeley National Laboratory 20.79ms from Seattle, US
131.243.10.45 AS16 Lawrence Berkeley National Laboratory 2.86ms from San Jose, US
131.243.46.192 AS16 Lawrence Berkeley National Laboratory 21.82ms from Seattle, US
131.243.15.89 AS16 Lawrence Berkeley National Laboratory 3.11ms from San Jose, US
131.243.3.241 AS16 Lawrence Berkeley National Laboratory 3.03ms from San Jose, US
131.243.29.65 AS16 Lawrence Berkeley National Laboratory 20.50ms from Seattle, US
131.243.37.59 AS16 Lawrence Berkeley National Laboratory 20.66ms from Seattle, US
131.243.43.193 AS16 Lawrence Berkeley National Laboratory 20.79ms from Seattle, US
131.243.31.27 AS16 Lawrence Berkeley National Laboratory 281.31ms from Delhi, IN
131.243.25.199 AS16 Lawrence Berkeley National Laboratory 21.87ms from Phoenix, US
131.243.24.140 AS16 Lawrence Berkeley National Laboratory 2.88ms 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
20.126.34.0 AS8075 Microsoft Corporation 0.24ms from Amsterdam, NL
73.183.2.192 AS7922 Comcast Cable Communications, LLC 10.63ms from Ashburn, US
124.187.80.64 AS1221 Telstra Limited 5.86ms from Brisbane, AU
96.191.236.32 AS53297 Comcast Cable Communications, LLC 0.05ms from Chicago, US
73.36.251.240 AS7922 Comcast Cable Communications, LLC 6.43ms from Chicago, US
97.99.166.48 AS11427 Charter Communications Inc 4.24ms from Dallas, US
170.80.81.224 AS266410 BELNET EIRELLI 5.76ms from Fortaleza, BR
79.137.203.96 AS210644 AEZA INTERNATIONAL LTD 0.47ms from Frankfurt am Main, DE
78.149.89.64 AS13285 TalkTalk Communications Limited 5.59ms from London, GB
86.134.227.48 AS2856 British Telecommunications PLC 1.78ms from London, GB
76.109.229.96 AS7922 Comcast Cable Communications, LLC 9.97ms from Miami, US
65.2.79.224 AS16509 Amazon.com, Inc. 0.37ms from Mumbai, IN
62.158.189.96 AS3320 Deutsche Telekom AG 2.45ms from Nuernberg, DE
2.23.112.128 AS16625 Akamai Technologies, Inc. 0.41ms from Paris, FR
60.250.248.112 AS3462 Data Communication Business Group 1.17ms from Taipei, TW
218.216.123.208 AS7516 TOHKnet Co.,Inc. 5.31ms from Tokyo, JP
69.68.180.128 AS19901 Brightspeed 8.21ms from Ashburn, US
139.171.159.176 AS7029 Windstream Communications LLC 0.62ms from Ashburn, US
75.207.52.96 AS6167 Verizon Business 15.96ms from Atlanta, US
75.88.242.240 AS7029 Windstream Communications LLC 8.73ms from Atlanta, US
54.203.66.192 AS16509 Amazon.com, Inc. 0.13ms from Boardman, US
163.192.240.0 AS31898 Oracle Corporation 0.49ms from Chicago, US
113.205.157.80 AS4837 CHINA UNICOM China169 Backbone 1.85ms from Chongqing, CN
27.58.18.32 AS24560 Bharti Airtel Ltd., Telemedia Services 7.58ms from Delhi, IN
204.232.94.80 AS12129 123.Net, Inc. 0.61ms from Detroit, 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 -m6 131.243.9.183
traceroute to 131.243.9.183 (131.243.9.183): 6 hops max, 52 byte packets
3 [] 208.115.136.58 13.775 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Chicago, US
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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