ASN AS37 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS37?

AS37 is listed under Navy Network Information Center NNIC.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS37 Navy Network Information Center NNIC

ASN Lookup Tool

Navy Network Information Center NNIC mail.mil

US 18 Routes

AS Data

AS37

AS37 – Navy Network Information Center NNIC

AS Number	37
AS Name	DNIC-AS-00037
Organization	Navy Network Information Center NNIC (nnicn-1)
Country	US
Website	mail.mil
Number of IPv4 Routes	17
Number of IPv6 Routes	1
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	1985-01-04

ASN Intelligence API for production workflows

Use ASN data for AS37 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

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.91.72.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
198.91.64.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
198.91.66.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
199.10.11.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
198.91.69.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
198.91.70.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
198.91.67.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
199.10.8.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
199.10.12.0/23	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	512
198.91.71.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
198.91.73.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
198.91.65.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
199.10.10.0/24	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	256
2001:480:501::/48	AS37	Navy Network Information Center NNIC	High Performance Computing	~1×10²⁴
199.10.8.0/22	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	1024
198.91.72.0/23	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	512
128.38.0.0/16	AS37	Navy Network Information Center NNIC	Navy Network Information Center NNIC	65536
198.91.64.0/21	AS37	Navy Network Information Center NNIC	United States Department of Defense DoD	2048

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:       37
ASName:         DNIC-AS-00037
ASHandle:       AS37
RegDate:        1985-01-04
Updated:        2011-07-05
Ref:            https://rdap.arin.net/registry/autnum/37


OrgName:        Navy Network Information Center (NNIC)
OrgId:          NNICN-1
Address:        2465 GUADALCANAL ROAD
Address:        BLDG 1265
City:           VIRGINIA BEACH
StateProv:      VA
PostalCode:     23459
Country:        US
RegDate:        2006-09-21
Updated:        2026-08-12
Ref:            https://rdap.arin.net/registry/entity/NNICN-1


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

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "37",
    "as_handle" : "AS37",
    "as_name" : "DNIC-AS-00037",
    "tech_contacts" : [ "REGIS10-ARIN" ],
    "abuse_contacts" : [ "REGIS10-ARIN" ],
    "date_created" : "1985-01-04",
    "date_updated" : "2011-07-05",
    "source" : "https://rdap.arin.net/registry/autnum/37"
  } ],
  "organization" : {
    "handle" : "NNICN-1",
    "name" : "Navy Network Information Center (NNIC)",
    "address" : [ "2465 GUADALCANAL ROAD", "BLDG 1265", "VIRGINIA BEACH", "VA", "23459", "US" ],
    "street" : "Guadalcanal Road",
    "city" : "Virginia Beach",
    "state" : "VA",
    "zip_code" : "23459",
    "country" : [ "US" ],
    "date_created" : "2006-09-21",
    "date_updated" : "2026-08-12",
    "source" : "https://rdap.arin.net/registry/entity/NNICN-1",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "REGIS10-ARIN",
    "name" : "Registration",
    "email" : [ "disa.columbus.ns.mbx.arin-registrations@mail.mil" ],
    "phone" : [ "+1-844-347-2457" ],
    "source" : "https://rdap.arin.net/registry/entity/REGIS10-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "REGIS10-ARIN",
    "name" : "Registration",
    "email" : [ "disa.columbus.ns.mbx.arin-registrations@mail.mil" ],
    "phone" : [ "+1-844-347-2457" ],
    "source" : "https://rdap.arin.net/registry/entity/REGIS10-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS668	United States Department of Defense DoD	US

Upstreams

AS Number	Description	Country
AS668	United States Department of Defense DoD	US