1. All IP Ranges
  2. 128.0.0.0/8
  3. 128.55.0.0/16
  4. AS2936  | 128.55.0.0/16

128.55.0.0/16

AS2936  ·  National Energy Research Scientific Computing Center

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Summary

Country United States
Domain es.net
ASN AS2936
Registry ARIN
ID NERSC

WHOIS Details

NetHandle:      NET-128-55-0-0-1
OrgID:          ENSN-Z
Parent:         NET-128-0-0-0-0
NetName:        NERSC
NetRange:       128.55.0.0 - 128.55.255.255
NetType:        allocation
RegDate:        1984-10-29
Updated:        2024-03-08
TechHandle:     KUMAR376-ARIN
TechHandle:     SGT10-ARIN
TechHandle:     SIMON407-ARIN
AbuseHandle:    CPP-ARIN
AbuseHandle:    SECUR88-ARIN
NOCHandle:      SGT10-ARIN
NOCHandle:      STROM17-ARIN
Source:         ARIN


OrgID:          ENSN-Z
OrgName:        ESnet
CanAllocate:    
Street:         Berkeley Lab
Street:         1 Cyclotron Road MS 59R3103
City:           Berkeley
State/Prov:     CA
Country:        US
PostalCode:     94720
RegDate:        2010-01-22
Updated:        2023-10-04
OrgAdminHandle: EH1-ARIN
OrgTechHandle:  EH1-ARIN
OrgAbuseHandle: EH1-ARIN
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:        rstrom@lbl.gov
Mailbox:        runes@nsx.lbl.gov
Source:         ARIN


POCHandle:      KUMAR376-ARIN
IsRole:         N
LastName:       Kumar
FirstName:      Ronal
Street:         1 Cyclotron Road
Street:         Building 69, Central Receiving
Street:         Mail Stop: 059-4010A
City:           Berkeley
State/Prov:     CA
Country:        US
PostalCode:     94720
RegDate:        2021-08-03
Updated:        2024-08-02
OfficePhone:    +1-510-495-2599
Mailbox:        ron@lbl.gov
Source:         ARIN


POCHandle:      SECUR88-ARIN
IsRole:         Y
LastName:       Security
FirstName:      
Street:         1 Cyclotron Rd
Street:         MS: 943-256
Street:         Attn: Security
City:           Berkeley
State/Prov:     CA
Country:        US
PostalCode:     94720
RegDate:        2014-07-18
Updated:        2025-01-22
OfficePhone:    +1-510-501-7918
Mailbox:        security@nersc.gov
Source:         ARIN


POCHandle:      SGT10-ARIN
IsRole:         N
LastName:       Stone Gibbins
FirstName:      Tavia
Street:         1 Cyclotron Road
Street:         MS:59-4010
City:           Berkeley
State/Prov:     CA
Country:        US
PostalCode:     94720
RegDate:        2016-07-26
Updated:        2025-01-22
OfficePhone:    +1-510-486-4021
Mailbox:        tcstone@lbl.gov
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:        rsimon@lbl.gov
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:        security@lbl.gov
Source:         ARIN


POCHandle:      EH1-ARIN
IsRole:         Y
LastName:       Energy Sciences Network
FirstName:      
Street:         One Cyclotron Road
Street:         MS-59R3103
City:           Berkeley
State/Prov:     CA
Country:        US
PostalCode:     94720
RegDate:        1970-01-01
Updated:        2025-07-21
OfficePhone:    +1-510-486-7607
Mailbox:        hostmaster@es.net
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 128.0.0.0/8

Range ASN Company Num of IPs
128.78.0.0/15 AS5410 Bouygues Telecom SA 131,072
128.178.0.0/15 AS559 Ecublens Camp Net 131,072
128.130.0.0/15 AS679 Technische Universitaet Wien 131,072
128.255.0.0/16 AS3676 University of Iowa 65,536
128.143.0.0/16 AS225 University of Virginia 65,536
128.192.0.0/16 AS36441 University of Georgia 65,536
128.183.0.0/16 AS270 National Aeronautics and Space Administration 65,536
128.206.0.0/16 AS26934 University of Missouri-Columbia 65,536
128.175.0.0/16 AS34 University of Delaware 65,536
128.102.0.0/16 AS270 National Aeronautics and Space Administration 65,536
128.189.0.0/16 AS271 BCNET 65,536
128.217.0.0/16 AS270 National Aeronautics and Space Administration 65,536
128.158.0.0/16 AS270 National Aeronautics and Space Administration 65,536
128.22.0.0/16 AS17511 OPTAGE Inc. 65,536
128.18.0.0/16 AS264 SRI International 65,536
128.12.0.0/16 AS32 Stanford University 65,536
128.228.0.0/16 AS31822 City University of New York 65,536
128.53.0.0/16 AS2514 NTT PC Communications,Inc. 65,536
128.47.0.0/16 AS252 Headquarters, USAISC 65,536
128.8.0.0/16 AS27 University of Maryland 65,536
128.87.0.0/16 AS158 Telefonaktiebolaget LM Ericsson 65,536
128.19.0.0/16 AS27064 DoD Network Information Center 65,536
128.37.0.0/16 AS27064 Headquarters, USAISC 65,536
128.214.0.0/16 AS1741 CSC - Tieteen tietotekniikan keskus Oy 65,536
128.159.0.0/16 AS270 National Aeronautics and Space Administration 65,536
128.3.0.0/16 AS16 Lawrence Berkeley National Laboratory 65,536
128.157.0.0/16 AS270 National Aeronautics and Space Administration 65,536
128.34.0.0/16 AS22 Navy Network Information Center (NNIC) 65,536
128.49.0.0/16 AS22 Navy Network Information Center (NNIC) 65,536
128.93.0.0/16 AS2200 Institut National de Recherche en Informatique et Automatique 65,536
128.39.0.0/16 AS224 UNINETT backbone network 65,536
128.231.0.0/16 AS3527 National Institutes of Health 65,536
128.27.0.0/16 AS17511 OPTAGE Inc. 65,536
128.28.0.0/16 AS2514 NTT PC Communications,Inc. 65,536
128.155.0.0/16 AS270 National Aeronautics and Space Administration 65,536
128.103.0.0/16 AS198949 Harvard University 65,536
128.135.0.0/16 AS160 The University of Chicago 65,536
128.4.0.0/16 AS2 University of Delaware 65,536
128.233.0.0/16 AS22950 University of Saskatchewan 65,536
128.163.0.0/16 AS23162 University of Kentucky 65,536
128.151.0.0/16 AS20 University of Rochester 65,536
128.100.0.0/16 AS239 University of Toronto 65,536
128.170.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
128.252.0.0/16 AS2552 Washington University 65,536
128.253.0.0/16 AS26 Cornell University 65,536
128.98.0.0/16 AS24775 QinetiQ TIM 65,536
128.186.0.0/16 AS2553 Florida State University 65,536
128.32.0.0/16 AS25 University of California at Berkeley 65,536
128.234.0.0/16 AS25019 Saudi Telecom Company JSC 65,536

Hosted domains

There are 7 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
128.55.206.106 legacysurvey.org 5
128.55.206.108 abacusnbody.org 2
128.55.206.111 unwise.me 2
128.55.206.112 abacusnbody.org 2
128.55.206.113 unwise.me 2
128.55.206.109 abacusnbody.org 2
128.55.206.110 unwise.me 2
128.55.206.107 abacusnbody.org 2
128.55.209.25 phytozome.org 1
128.55.206.100 safe-lle.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

6,123 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
128.55.76.174 AS2936 National Energy Research Scientific Computing Center 2.02ms from San Jose, US
128.55.126.30 AS2936 National Energy Research Scientific Computing Center 2.04ms from San Jose, US
128.55.154.12 AS2936 National Energy Research Scientific Computing Center 2.08ms from San Jose, US
128.55.77.167 AS2936 National Energy Research Scientific Computing Center 1.97ms from San Jose, US
128.55.64.36 AS2936 National Energy Research Scientific Computing Center 1.99ms from San Jose, US
128.55.167.142 AS2936 National Energy Research Scientific Computing Center 2.02ms from San Jose, US
128.55.223.121 AS2936 National Energy Research Scientific Computing Center 2.00ms from San Jose, US
128.55.81.206 AS2936 National Energy Research Scientific Computing Center 1.99ms from San Jose, US
128.55.185.224 AS2936 National Energy Research Scientific Computing Center 2.04ms from San Jose, US
128.55.172.2 AS2936 National Energy Research Scientific Computing Center 2.15ms from San Jose, US
128.55.139.254 AS2936 National Energy Research Scientific Computing Center 2.14ms from San Jose, US
128.55.190.155 AS2936 National Energy Research Scientific Computing Center 2.03ms from San Jose, US
128.55.205.26 AS2936 National Energy Research Scientific Computing Center 2.02ms from San Jose, US
128.55.70.152 AS2936 National Energy Research Scientific Computing Center 2.00ms from San Jose, US
128.55.147.254 AS2936 National Energy Research Scientific Computing Center 2.13ms from San Jose, US
128.55.221.222 AS2936 National Energy Research Scientific Computing Center 2.02ms from San Jose, US
128.55.207.254 AS2936 National Energy Research Scientific Computing Center 2.03ms from San Jose, US
128.55.83.78 AS2936 National Energy Research Scientific Computing Center 2.01ms from San Jose, US
128.55.71.70 AS2936 National Energy Research Scientific Computing Center 2.03ms from San Jose, US
128.55.199.201 AS2936 National Energy Research Scientific Computing Center 1.98ms from San Jose, US
128.55.79.86 AS2936 National Energy Research Scientific Computing Center 2.01ms from San Jose, US
128.55.212.127 AS2936 National Energy Research Scientific Computing Center 2.05ms from San Jose, US
128.55.73.152 AS2936 National Energy Research Scientific Computing Center 1.99ms from San Jose, US
128.55.210.197 AS2936 National Energy Research Scientific Computing Center 2.02ms from San Jose, US
128.55.181.3 AS2936 National Energy Research Scientific Computing Center 2.14ms 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
145.100.32.32 AS1103 SURF B.V. 0.54ms from Amsterdam, NL
36.212.174.192 AS9808 China Mobile Communications Group Co., Ltd. 0.73ms from Beijing, CN
104.231.229.240 AS10796 Charter Communications Inc 6.48ms from Chicago, US
73.8.66.192 AS7922 Comcast Cable Communications, LLC 5.84ms from Chicago, US
186.124.76.48 AS7303 Telecom Argentina S.A. 1.30ms from Cordoba, AR
178.90.60.96 AS9198 JSC Kazakhtelecom 1.10ms from Pavlodar, KZ
46.167.201.240 AS16019 Vodafone Czech Republic a.s. 3.69ms from Prague, CZ
2.229.23.80 AS12874 Fastweb SpA 4.60ms from Rome, IT
84.208.2.0 AS25400 Telia Norge AS 2.81ms from Sandefjord, NO
14.128.150.112 AS4766 Korea Telecom 0.87ms from Seoul, KR
47.100.60.32 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.76ms from Shanghai, CN
162.159.152.16 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
118.92.28.176 AS9500 One New Zealand Group Limited 1.90ms from Auckland, NZ
13.72.22.112 AS8075 Microsoft Corporation 0.68ms from Boydton, US
104.239.213.48 AS19994 Rackspace Hosting 1.25ms from Chicago, US
98.38.41.112 AS7922 Comcast Cable Communications, LLC 5.33ms from Denver, US
31.113.230.0 AS2856 British Telecommunications PLC 2.03ms from London, GB
80.135.130.224 AS3320 Deutsche Telekom AG 2.41ms from Nuernberg, DE
76.121.194.208 AS7922 Comcast Cable Communications, LLC 5.65ms from Seattle, US
106.15.78.240 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.55ms from Shanghai, CN
220.128.164.32 AS3462 Data Communication Business Group 0.93ms from Taipei, TW
49.243.153.144 AS10013 FreeBit Co.,Ltd. 2.51ms from Tokyo, JP
1.199.231.128 AS4134 CHINANET-BACKBONE 8.74ms from Zhengzhou, CN
24.93.195.192 AS10796 Charter Communications Inc 9.83ms from Columbus, US
62.27.239.96 AS12312 ecotel communication ag 5.91ms from Duesseldorf, DE

Traceroute

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

$
traceroute -a -n -q1 -m6 128.55.50.34
traceroute to 128.55.50.34 (128.55.50.34): 6 hops max, 52 byte packets
2 *
3 [] 80.249.213.7 0.74 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
On

What are IP address ranges?

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