ASN AS10660 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS10660?

AS10660 is listed under SYSNET Communications.

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.

AS10660 SYSNET Communications

ASN Lookup Tool

SYSNET Communications sysnet.net

US 11 Routes

AS Data

AS10660

AS10660 – SYSNET Communications

AS Number	10660
AS Name	SYSNET-AS
Organization	SYSNET Communications (sysnet-2)
Country	US
Website	sysnet.net
Number of IPv4 Routes	11
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	1997-10-17

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Use ASN data for AS10660 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
64.118.200.0/24	AS10660	SYSNET Communications	Sysnet Corporation	256
64.118.205.0/24	AS10660	SYSNET Communications	Sysnet Corporation	256
64.118.198.0/24	AS10660	SYSNET Communications	Sysnet Corporation	256
64.118.199.0/24	AS10660	SYSNET Communications	Sysnet Corporation	256
64.118.204.0/24	AS10660	SYSNET Communications	Sysnet Corporation	256
64.118.206.0/24	AS10660	SYSNET Communications	Sysnet Corporation	256
64.118.207.0/24	AS10660	SYSNET Communications	Sysnet Corporation	256
64.118.202.0/24	AS10660	SYSNET Communications	Sysnet Corporation	256
64.118.196.0/24	AS10660	SYSNET Communications	Sysnet Corporation	256
64.118.203.0/24	AS10660	SYSNET Communications	Sysnet Corporation	256

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:       10660
ASName:         SYSNET-AS
ASHandle:       AS10660
RegDate:        1997-10-17
Updated:        1997-10-17
Ref:            https://rdap.arin.net/registry/autnum/10660


OrgName:        SYSNET Communications
OrgId:          SYSNET-2
Address:        4340 East-west Hwy, Suite 1050
City:           Bethesda
StateProv:      MD
PostalCode:     20814
Country:        US
RegDate:        1997-10-17
Updated:        2012-10-10
Ref:            https://rdap.arin.net/registry/entity/SYSNET-2


OrgTechHandle: MM1590-ARIN
OrgTechName:   Matinrazm, Majid 
OrgTechPhone:  +1-301-664-6000 
OrgTechEmail:  NIC@sysnet.net
OrgTechRef:    https://rdap.arin.net/registry/entity/MM1590-ARIN

OrgAbuseHandle: MM1590-ARIN
OrgAbuseName:   Matinrazm, Majid 
OrgAbusePhone:  +1-301-664-6000 
OrgAbuseEmail:  NIC@sysnet.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MM1590-ARIN

RTechHandle: MM1590-ARIN
RTechName:   Matinrazm, Majid 
RTechPhone:  +1-301-664-6000 
RTechEmail:  NIC@sysnet.net
RTechRef:    https://rdap.arin.net/registry/entity/MM1590-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" : "10660",
    "as_handle" : "AS10660",
    "as_name" : "SYSNET-AS",
    "tech_contacts" : [ "MM1590-ARIN", "MM1590-ARIN" ],
    "abuse_contacts" : [ "MM1590-ARIN" ],
    "date_created" : "1997-10-17",
    "date_updated" : "1997-10-17",
    "source" : "https://rdap.arin.net/registry/autnum/10660"
  } ],
  "organization" : {
    "handle" : "SYSNET-2",
    "name" : "SYSNET Communications",
    "address" : [ "4340 East-west Hwy, Suite 1050", "Bethesda", "MD", "20814", "US" ],
    "street" : "East-west Hwy",
    "city" : "Bethesda",
    "state" : "MD",
    "zip_code" : "20814",
    "country" : [ "US" ],
    "date_created" : "1997-10-17",
    "date_updated" : "2012-10-10",
    "source" : "https://rdap.arin.net/registry/entity/SYSNET-2",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "MM1590-ARIN",
    "name" : "Matinrazm, Majid",
    "email" : [ "NIC@sysnet.net" ],
    "phone" : [ "+1-301-664-6000" ],
    "source" : "https://rdap.arin.net/registry/entity/MM1590-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "MM1590-ARIN",
    "name" : "Matinrazm, Majid",
    "email" : [ "NIC@sysnet.net" ],
    "phone" : [ "+1-301-664-6000" ],
    "source" : "https://rdap.arin.net/registry/entity/MM1590-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS1239	Cogent Communications, LLC	US
AS3356	Level 3 Parent, LLC	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US
AS174	Cogent Communications, LLC	US