ASN AS3555 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS3555?

AS3555 is listed under AT&T Technical Services Company, Inc..

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?

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AS3555 AT&T Technical Services Company, Inc.

ASN Lookup Tool

AT&T Technical Services Company, Inc.

US 12 Routes

AS Data

AS3555

AS3555 – AT&T Technical Services Company, Inc.

AS Number	3555
AS Name	ATS-NET
Organization	AT&T Technical Services Company, Inc. (ats-636-z)
Country	US
Number of IPv4 Routes	12
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1994-04-15

ASN Intelligence API for production workflows

Use ASN data for AS3555 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.89.160.0/24	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	256
198.17.99.0/24	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	256
199.74.244.0/24	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	256
199.89.132.0/23	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	512
204.89.154.0/24	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	256
198.137.234.0/23	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	512
192.246.37.0/24	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	256
204.89.153.0/24	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	256
198.22.152.0/24	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	256
199.79.216.0/24	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	256
192.31.9.0/24	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	256
199.89.158.0/23	AS3555	AT&T Technical Services Company, Inc.	AT&T Technical Services Company, Inc.	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:       3555
ASName:         ATS-NET
ASHandle:       AS3555
RegDate:        1994-04-15
Updated:        2021-04-16
Ref:            https://rdap.arin.net/registry/autnum/3555


OrgName:        AT&T Technical Services Company, Inc.
OrgId:          ATS-636-Z
Address:        3033 Chain Bridge Road
City:           Oakton
StateProv:      VA
PostalCode:     22124
Country:        US
RegDate:        2021-03-29
Updated:        2021-04-13
Ref:            https://rdap.arin.net/registry/entity/ATS-636-Z


OrgTechHandle: YTTRI1-ARIN
OrgTechName:   Yttri, Ron 
OrgTechPhone:  +1-805-455-4878 
OrgTechEmail:  yttri@att.com
OrgTechRef:    https://rdap.arin.net/registry/entity/YTTRI1-ARIN

OrgTechHandle: GERNE5-ARIN
OrgTechName:   Gerney, Eric 
OrgTechPhone:  +1-703-622-3944 
OrgTechEmail:  eg2391@att.com
OrgTechRef:    https://rdap.arin.net/registry/entity/GERNE5-ARIN

OrgAbuseHandle: GERNE5-ARIN
OrgAbuseName:   Gerney, Eric 
OrgAbusePhone:  +1-703-622-3944 
OrgAbuseEmail:  eg2391@att.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/GERNE5-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" : "3555",
    "as_handle" : "AS3555",
    "as_name" : "ATS-NET",
    "tech_contacts" : [ "YTTRI1-ARIN", "GERNE5-ARIN" ],
    "abuse_contacts" : [ "GERNE5-ARIN" ],
    "date_created" : "1994-04-15",
    "date_updated" : "2021-04-16",
    "source" : "https://rdap.arin.net/registry/autnum/3555"
  } ],
  "organization" : {
    "handle" : "ATS-636-Z",
    "name" : "AT&T Technical Services Company, Inc.",
    "address" : [ "3033 Chain Bridge Road", "Oakton", "VA", "22124", "US" ],
    "street" : "Chain Bridge Road",
    "city" : "Oakton",
    "state" : "VA",
    "zip_code" : "22124",
    "country" : [ "US" ],
    "date_created" : "2021-03-29",
    "date_updated" : "2021-04-13",
    "source" : "https://rdap.arin.net/registry/entity/ATS-636-Z",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "YTTRI1-ARIN",
    "name" : "Yttri, Ron",
    "email" : [ "yttri@att.com" ],
    "phone" : [ "+1-805-455-4878" ],
    "source" : "https://rdap.arin.net/registry/entity/YTTRI1-ARIN"
  }, {
    "handle" : "GERNE5-ARIN",
    "name" : "Gerney, Eric",
    "email" : [ "eg2391@att.com" ],
    "phone" : [ "+1-703-622-3944" ],
    "source" : "https://rdap.arin.net/registry/entity/GERNE5-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "GERNE5-ARIN",
    "name" : "Gerney, Eric",
    "email" : [ "eg2391@att.com" ],
    "phone" : [ "+1-703-622-3944" ],
    "source" : "https://rdap.arin.net/registry/entity/GERNE5-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US