ASN Lookup Tool

U.S. Army Information Systems Command army.mil US US 2119 Routes

AS Data

AS1540

AS1540 – U.S. Army Information Systems Command

AS Number 1540
AS Name DNIC-ASBLK-01534-01546
Organization U.S. Army Information Systems Command (headqu-3)
Country US
Website army.mil
Number of IPv4 Routes 2055
Number of IPv6 Routes 64
ASN type GOVERNMENT
Registry ARIN
Date Allocated 2004-05-12

ASN Intelligence API for production workflows

Use ASN data for AS1540 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs
Powered by ASN data

IP Ranges

Route # IPs
6.129.95.0/24 256
6.70.180.0/23 512
6.77.24.0/23 512
132.140.2.0/24 256
134.233.122.0/23 512
155.25.37.0/24 256
144.245.55.0/24 256
144.245.5.0/24 256
155.218.151.0/24 256
6.44.160.0/22 1024
155.29.94.0/24 256
136.217.227.0/24 256
199.10.44.0/24 256
6.71.196.0/23 512
6.131.192.0/22 1024
136.217.86.0/24 256
138.50.50.0/23 512
6.131.138.0/24 256
136.220.240.0/23 512
134.80.26.0/23 512
144.245.125.0/24 256
139.139.130.0/24 256
143.84.165.0/24 256
6.66.150.0/23 512
134.233.176.0/23 512
158.16.242.0/23 512
6.72.0.0/20 4096
155.149.0.0/16 65536
6.16.52.0/24 256
158.14.170.0/23 512
155.29.126.0/23 512
140.155.158.0/23 512
136.217.197.0/24 256
140.155.36.0/23 512
136.217.144.0/24 256
6.80.173.0/24 256
6.16.51.0/24 256
158.14.158.0/23 512
136.217.143.0/24 256
6.74.14.0/23 512
6.44.84.0/22 1024
6.70.168.0/23 512
144.245.54.0/24 256
6.69.26.0/23 512
6.129.94.0/24 256
6.42.150.0/23 512
6.75.91.0/24 256
6.69.126.0/23 512
155.25.208.0/24 256
55.196.0.0/16 65536
130.114.0.0/16 65536
214.25.86.0/23 512
6.44.148.0/22 1024
143.249.236.0/22 1024
6.69.24.0/23 512
134.233.92.0/23 512
6.66.120.0/23 512
160.136.20.0/24 256
6.69.90.0/23 512
6.65.146.0/23 512

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       1534 - 1546
ASName:         DNIC-ASBLK-01534-01546
ASHandle:       AS1534
RegDate:        2004-05-12
Updated:        2011-08-24
Ref:            https://rdap.arin.net/registry/autnum/1534


OrgName:        Headquarters, USAISC
OrgId:          HEADQU-3
Address:        NETC-ANC CONUS TNOSC
City:           Fort Huachuca
StateProv:      AZ
PostalCode:     85613
Country:        US
RegDate:        1990-03-26
Updated:        2026-08-12
Ref:            https://rdap.arin.net/registry/entity/HEADQU-3


OrgAbuseHandle: REGIS10-ARIN
OrgAbuseName:   Registration
OrgAbusePhone:  +1-844-347-2457 
OrgAbuseEmail:  disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgAbuseRef:    https://rdap.arin.net/registry/entity/REGIS10-ARIN

OrgTechHandle: REGIS10-ARIN
OrgTechName:   Registration
OrgTechPhone:  +1-844-347-2457 
OrgTechEmail:  disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgTechRef:    https://rdap.arin.net/registry/entity/REGIS10-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number Description Country
AS27065 United States Department of Defense DoD US
AS1493 Headquarters, USAISC US
AS6006 United States Department of Defense DoD US
AS366 United States Department of Defense DoD US
AS27064 United States Department of Defense DoD US
AS1554 United States Department of Defense DoD US
AS588 Headquarters, USAISC US
AS153 Headquarters, USAISC US
AS306 United States Department of Defense DoD US
AS367 United States Department of Defense DoD US

Upstreams

AS Number Description Country
AS27065 United States Department of Defense DoD US
AS27064 United States Department of Defense DoD US
AS367 United States Department of Defense DoD US

Downstreams

AS Number Description Country
AS1493 Headquarters, USAISC US
AS6006 United States Department of Defense DoD US
AS366 United States Department of Defense DoD US
AS1554 United States Department of Defense DoD US
AS588 Headquarters, USAISC US
AS153 Headquarters, USAISC US
AS306 United States Department of Defense DoD US

Legacy Routes

143.70.76.0/24 2608:12a:7464::/48 160.140.136.0/24

Ready to get started?Get Started with IP Intelligence API Today

Get Started
CTA Illustration

Frequently Asked Questions

ASN AS1540 is an Autonomous System Number used to identify a network for BGP internet routing.
AS1540 is listed under U.S. Army Information Systems Command.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.