IP range details

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
Hosted IPs	65,536
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:      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:      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:      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:      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:        2024-07-17
OfficePhone:    +1-510-486-7607
Mailbox:        hostmaster@es.net
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:      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:      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:        2024-06-06
OfficePhone:    +1-510-486-5095
Mailbox:        rstrom@lbl.gov
Mailbox:        runes@nsx.lbl.gov
Source:         ARIN

Hosted domains

There are 8 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
128.55.206.112	unwise.me	4
128.55.206.109	legacysurvey.org	3
128.55.206.108	unwise.me	3
128.55.206.110	unwise.me	2
128.55.206.106	abacusnbody.org	2
128.55.206.113	unwise.me	2
128.55.206.107	abacusnbody.org	2
128.55.206.111	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.

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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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