1. All IP Ranges
  2. 204.0.0.0/8
  3. 204.121.0.0/16
  4. AS68  | 204.121.0.0/16

204.121.0.0/16

AS68  ·  Los Alamos National Laboratory

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Summary

Country United States
Domain lanl.gov
ASN AS68
Registry ARIN
ID NOTES-CBLK

WHOIS Details

NetHandle:      NET-204-121-0-0-1
OrgID:          LANL-2-Z
Parent:         NET-204-0-0-0-0
NetName:        NOTES-CBLK
NetRange:       204.121.0.0 - 204.121.255.255
NetType:        allocation
RegDate:        1994-08-12
Updated:        2025-11-18
Source:         ARIN


OrgID:          LANL-2-Z
OrgName:        Los Alamos National Laboratory
CanAllocate:    
Street:         P. O. Box 1663
City:           Los Alamos
State/Prov:     NM
Country:        US
PostalCode:     87545
RegDate:        2023-11-30
Updated:        2024-07-17
OrgAdminHandle: MERRI398-ARIN
OrgTechHandle:  BNK-ARIN
OrgAbuseHandle: CSIRT1-ARIN
OrgNOCHandle:   NETWO5005-ARIN
OrgRoutingHandle:   BNK-ARIN
OrgDNSHandle:   LDA93-ARIN
Source:         ARIN


POCHandle:      BNK-ARIN
IsRole:         N
LastName:       Karis
FirstName:      Brandon
Street:         Bikini Atoll Rd., SM 30
City:           Los Alamos
State/Prov:     NM
Country:        US
PostalCode:     87545
RegDate:        2018-10-04
Updated:        2026-01-15
OfficePhone:    +1-505-665-2253
MobilePhone:    +1-505-412-8637
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      NETWO5005-ARIN
IsRole:         Y
LastName:       Network Ops
FirstName:      
Street:         PO Box 1663
Street:         MS B255
City:           Los Alamos
State/Prov:     NM
Country:        US
PostalCode:     87545
RegDate:        2012-03-05
Updated:        2023-12-11
OfficePhone:    +1-505-665-4444
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      MERRI398-ARIN
IsRole:         N
LastName:       Merrigan
FirstName:      Dylan
Street:         P.O. Box 1663
City:           Los Alamos
State/Prov:     NM
Country:        US
PostalCode:     87545
RegDate:        2018-10-10
Updated:        2022-07-21
OfficePhone:    +1-505-667-7713
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      CSIRT1-ARIN
IsRole:         Y
LastName:       CSIRT
FirstName:      
Street:         P.O. Box 1663
Street:         MS B255
City:           Los Alamos
State/Prov:     NM
Country:        US
PostalCode:     87545
RegDate:        2012-03-05
Updated:        2018-12-11
OfficePhone:    +1-505-665-8641
FaxPhone:       +1-505-665-7793
Mailbox:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 204.0.0.0/8

Range ASN Company Num of IPs
204.252.0.0/14 AS11606 Verizon Business 262,144
204.252.0.0/14 AS701 Verizon Business 262,144
204.0.0.0/14 AS2914 NTT America, Inc. 262,144
204.240.0.0/14 AS174 Cogent Communications, LLC 262,144
204.200.0.0/14 AS2914 NTT America, Inc. 262,144
204.248.0.0/14 AS174 Cogent Communications, LLC 262,144
204.212.0.0/14 AS174 Cogent Communications, LLC 262,144
204.148.0.0/14 AS701 Verizon Business 262,144
204.180.0.0/14 AS174 Cogent Communications, LLC 262,144
204.176.0.0/14 AS701 Verizon Business 262,144
204.176.0.0/14 AS15297 Verizon Business 262,144
204.64.0.0/14 AS1761 Texas Department of Information Resources 262,144
204.4.0.0/14 AS174 Cogent Communications, LLC 262,144
204.248.0.0/14 AS6062 Cogent Communications, LLC 262,144
204.212.0.0/14 AS6062 Cogent Communications, LLC 262,144
204.252.0.0/14 AS22883 Verizon Business 262,144
204.0.0.0/14 AS203020 NTT America, Inc. 262,144
204.220.0.0/15 AS5006 Inteliquent, inc. 131,072
204.84.0.0/15 AS81 MCNC 131,072
204.72.0.0/15 AS5006 Inteliquent, inc. 131,072
204.20.0.0/15 AS749 DoD Network Information Center 131,072
204.84.0.0/15 AS6559 MCNC 131,072
204.46.0.0/15 AS14298 Environmental Protection Agency 131,072
204.70.0.0/15 AS3561 CenturyLink Communications, LLC 131,072
204.72.0.0/15 AS1347 Inteliquent, inc. 131,072
204.170.0.0/15 AS2914 NTT America, Inc. 131,072
204.84.0.0/15 AS11442 MCNC 131,072
204.84.0.0/15 AS20197 MCNC 131,072
204.70.0.0/15 AS11012 CenturyLink Communications, LLC 131,072
204.142.0.0/15 AS2914 NTT America, Inc. 131,072
204.186.0.0/16 AS3737 PenTeleData Inc. 65,536
204.233.0.0/16 AS2914 NTT America, Inc. 65,536
204.49.0.0/16 AS399586 CenturyLink Communications, LLC 65,536
204.91.0.0/16 AS701 Verizon Business 65,536
204.234.0.0/16 AS11714 Network Nebraska 65,536
204.224.0.0/16 AS22463 CDK Global, LLC 65,536
204.189.0.0/16 AS3561 CENTURYLINK, INC. 65,536
204.92.0.0/16 AS701 Verizon Business 65,536
204.146.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
204.111.0.0/16 AS21759 Shenandoah Cable Television LLC 65,536
204.102.0.0/16 AS2152 CENIC 65,536
204.42.0.0/16 AS2914 NTT America, Inc. 65,536
204.113.0.0/16 AS210 Utah Education Network 65,536
204.91.0.0/16 AS11893 Verizon Business 65,536
204.116.0.0/16 AS27563 Spirit Communications 65,536
204.141.0.0/16 AS2914 NTT America, Inc. 65,536
204.92.0.0/16 AS14843 Verizon Business 65,536
204.247.0.0/16 AS2914 NTT America, Inc. 65,536
204.116.0.0/16 AS12208 Spirit Communications 65,536
204.175.0.0/16 AS15057 Verizon Business 65,536

Hosted domains

There are 2 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
204.121.60.11 pishvid.top 2

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

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

IP Address ASN Details
204.121.131.114 AS68 Los Alamos National Laboratory 11.29ms from Denver, US
204.121.141.79 AS68 Los Alamos National Laboratory 11.30ms from Denver, US
204.121.139.25 AS68 Los Alamos National Laboratory 11.30ms from Denver, US
204.121.138.129 AS68 Los Alamos National Laboratory 11.30ms from Denver, US
204.121.151.100 AS68 Los Alamos National Laboratory 11.27ms from Denver, US
204.121.146.204 AS68 Los Alamos National Laboratory 11.33ms from Denver, US
204.121.5.41 AS68 Los Alamos National Laboratory 11.29ms from Denver, US
204.121.135.98 AS68 Los Alamos National Laboratory 11.27ms from Denver, US
204.121.133.178 AS68 Los Alamos National Laboratory 11.28ms from Denver, US
204.121.128.32 AS68 Los Alamos National Laboratory 11.27ms from Denver, US
204.121.130.81 AS68 Los Alamos National Laboratory 11.31ms from Denver, US
204.121.157.106 AS68 Los Alamos National Laboratory 11.27ms from Denver, US
204.121.142.57 AS68 Los Alamos National Laboratory 11.29ms from Denver, US
204.121.61.54 AS68 Los Alamos National Laboratory 11.29ms from Denver, US
204.121.3.115 AS68 Los Alamos National Laboratory 11.29ms from Denver, US
204.121.158.194 AS68 Los Alamos National Laboratory 11.30ms from Denver, US
204.121.159.37 AS68 Los Alamos National Laboratory 11.29ms from Denver, US
204.121.16.133 AS68 Los Alamos National Laboratory 11.29ms from Denver, US
204.121.137.89 AS68 Los Alamos National Laboratory 11.30ms from Denver, US
204.121.129.83 AS68 Los Alamos National Laboratory 11.27ms from Denver, US
204.121.140.182 AS68 Los Alamos National Laboratory 11.20ms from Denver, US
204.121.156.96 AS68 Los Alamos National Laboratory 11.28ms from Denver, US
204.121.149.59 AS68 Los Alamos National Laboratory 11.33ms from Denver, US
204.121.136.136 AS68 Los Alamos National Laboratory 11.27ms from Denver, US
204.121.8.186 AS68 Los Alamos National Laboratory 11.28ms from Denver, 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
109.77.152.208 AS15502 Vodafone Ireland Limited 5.61ms from Dublin, IE
188.74.22.32 AS20810 Netcom Kassel 4.27ms from Frankfurt am Main, DE
79.217.2.48 AS3320 Deutsche Telekom AG 4.22ms from Frankfurt am Main, DE
212.227.138.144 AS8560 IONOS SE 2.63ms from Frankfurt am Main, DE
175.112.35.144 AS9318 SK Broadband Co Ltd 1.49ms from Incheon, KR
89.143.70.144 AS5603 Telekom Slovenije, d.d. 3.84ms from Ljubljana, SI
86.152.155.208 AS2856 British Telecommunications PLC 2.33ms from London, GB
79.38.84.0 AS3269 Telecom Italia S.p.A. 3.25ms from Milan, IT
100.8.101.192 AS701 Verizon Business 2.01ms from New York City, US
119.116.121.80 AS4837 CHINA UNICOM China169 Backbone 3.91ms from Tieling, CN
45.153.118.0 AS59588 Al Atheer Telecommunication-Iraq Co. Ltd. Incorporated in Cayman Islands 7.14ms from Baghdad, IQ
77.242.25.192 AS35047 Abissnet sh.a. 12.29ms from Belgrade, RS
41.232.241.32 AS8452 TE-AS 5.77ms from Cairo, EG
45.226.180.0 AS265864 LINK Telecom S.A. 8.85ms from Chapeco, BR
211.158.174.128 AS4837 CHINA UNICOM China169 Backbone 2.57ms from Chongqing, CN
158.41.253.64 AS1448 United Cooperative Services 2.87ms from Dallas, US
20.236.199.176 AS8075 Microsoft Corporation 0.37ms from Des Moines, US
3.28.176.224 AS16509 Amazon.com, Inc. 0.10ms from Dubai, AE
3.255.150.208 AS16509 Amazon.com, Inc. 0.25ms from Dublin, IE
164.92.192.48 AS14061 DigitalOcean, LLC 0.23ms from Frankfurt am Main, DE
18.156.189.48 AS16509 Amazon.com, Inc. 0.17ms from Frankfurt am Main, DE
223.239.115.224 AS45609 Bharti Airtel Ltd. AS for GPRS Service 15.46ms from Kolkata, IN
83.99.58.96 AS6661 POST Luxembourg 1.22ms from Luxembourg, LU
18.209.136.208 AS14618 Amazon.com, Inc. 0.16ms from Reston, US
86.32.94.144 AS205714 Telemach Hrvatska d.o.o. 1.17ms from Zagreb, HR

Traceroute

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

$
traceroute -a -n -q1 -m6 204.121.8.75
traceroute to 204.121.8.75 (204.121.8.75): 6 hops max, 52 byte packets
2 *
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Ashburn, 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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