ASN AS9935 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS9935?

AS9935 is listed under AT&T Japan K.K..

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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AS9935 AT&T Japan K.K. | IPGeolocation.io

AT&T Japan K.K. intl.att.com

JP 1 Routes

AS Data

AS9935

AS9935 – AT&T Japan K.K.

AS Number	9935
AS Name	AGNSCUS-HK
Organization	AT&T Japan K.K. (org-ajk1-ap)
Country	JP
Website	intl.att.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS9935 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
193.149.194.0/24	AS9935	AT&T Japan K.K.	AT&T Global Network Services Nederland B.V.	256

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS9249 - AS10239'

as-block:       AS9249 - AS10239
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2022-09-22T22:36:45Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS9935'

% Abuse contact for 'AS9935' is 'peering@intl.att.com'

aut-num:        AS9935
as-name:        AGNSCUS-HK
descr:          AGNS Customer AS
country:        JP
org:            ORG-AJK1-AP
admin-c:        dr7890-AP
tech-c:         dr7890-AP
abuse-c:        AA1420-AP
notify:         dr6348@att.com
mnt-lower:      MAINT-AP-OPENNET
mnt-routes:     MAINT-AP-OPENNET
mnt-by:         APNIC-HM
mnt-irt:        IRT-ATT-OPENNET-AP
last-modified:  2020-07-07T05:02:07Z
source:         APNIC

irt:            IRT-ATT-OPENNET-AP
address:        All of AP
e-mail:         peering@intl.att.com
abuse-mailbox:  peering@intl.att.com
admin-c:        DR7890-AP
tech-c:         DR7890-AP
auth:           # Filtered
remarks:        peering@intl.att.com was validated on 2025-11-27
mnt-by:         MAINT-AP-OPENNET
last-modified:  2026-03-11T14:21:52Z
source:         APNIC

organisation:   ORG-AJK1-AP
org-name:       AT&T Japan K.K.
org-type:       LIR
country:        JP
address:        Toranomon Twin Bldg
address:        2-10-1 Toranomon
address:        AT&T PO: PR515809
phone:          +81-3-3582-2304
fax-no:         +81-3-3505-1771
e-mail:         peering@intl.att.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:44Z
source:         APNIC

role:           ABUSE ATTOPENNETAP
country:        ZZ
address:        All of AP
phone:          +000000000
e-mail:         peering@intl.att.com
admin-c:        DR7890-AP
tech-c:         DR7890-AP
nic-hdl:        AA1420-AP
remarks:        Generated from irt object IRT-ATT-OPENNET-AP
remarks:        peering@intl.att.com was validated on 2025-11-27
abuse-mailbox:  peering@intl.att.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-27T13:48:08Z
source:         APNIC

person:         Dani Rueegg
address:        AT&T Global RIR ADMIN
country:        CH
phone:          +1
e-mail:         daniel.rueegg@intl.att.com
nic-hdl:        DR7890-AP
mnt-by:         MAINT-AP-OPENNET
last-modified:  2014-12-11T10:12:01Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)



#
# 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:       9216 - 10239
ASName:         APNIC-AS-3-BLOCK
ASHandle:       AS9216
RegDate:        1998-11-03
Updated:        2009-10-08
Comment:        These AS numbers are not registered in the ARIN database.
Comment:        For details, refer to the APNIC Whois Database via
Comment:        WHOIS.APNIC.NET or http://wq.apnic.net/apnic-bin/whois.pl
Ref:            https://rdap.arin.net/registry/autnum/9216

ResourceLink:  https://apps.db.ripe.net/db-web-ui/query
ResourceLink:  whois.apnic.net


OrgName:        Asia Pacific Network Information Centre
OrgId:          APNIC
Address:        PO Box 3646
City:           South Brisbane
StateProv:      QLD
PostalCode:     4101
Country:        AU
RegDate:        
Updated:        2012-01-24
Ref:            https://rdap.arin.net/registry/entity/APNIC

ReferralServer:  whois://whois.apnic.net
ResourceLink:  http://wq.apnic.net/whois-search/static/search.html

OrgTechHandle: AWC12-ARIN
OrgTechName:   APNIC Whois Contact
OrgTechPhone:  +61 7 3858 3188 
OrgTechEmail:  search-apnic-not-arin@apnic.net
OrgTechRef:    https://rdap.arin.net/registry/entity/AWC12-ARIN

OrgAbuseHandle: AWC12-ARIN
OrgAbuseName:   APNIC Whois Contact
OrgAbusePhone:  +61 7 3858 3188 
OrgAbuseEmail:  search-apnic-not-arin@apnic.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AWC12-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.
#

[ JPNIC database provides information regarding IP address and ASN. Its use   ]
[ is restricted to network administration purposes. For further information,  ]
[ use 'whois -h whois.nic.ad.jp help'. To only display English output,        ]
[ add '/e' at the end of command, e.g. 'whois -h whois.nic.ad.jp xxx/e'.      ]

No match!!

Reference: WHOIS servers of RIRs
  APNIC WHOIS(whois.apnic.net)
  ARIN WHOIS(whois.arin.net)
  RIPE WHOIS(apps.db.ripe.net)
  LACNIC WHOIS(whois.lacnic.net)
  AfriNIC WHOIS(whois.afrinic.net)
% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS9249 - AS10239'

as-block:       AS9249 - AS10239
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2022-09-22T22:36:45Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS9935'

% Abuse contact for 'AS9935' is 'peering@intl.att.com'

aut-num:        AS9935
as-name:        AGNSCUS-HK
descr:          AGNS Customer AS
country:        JP
org:            ORG-AJK1-AP
admin-c:        dr7890-AP
tech-c:         dr7890-AP
abuse-c:        AA1420-AP
notify:         dr6348@att.com
mnt-lower:      MAINT-AP-OPENNET
mnt-routes:     MAINT-AP-OPENNET
mnt-by:         APNIC-HM
mnt-irt:        IRT-ATT-OPENNET-AP
last-modified:  2020-07-07T05:02:07Z
source:         APNIC

irt:            IRT-ATT-OPENNET-AP
address:        All of AP
e-mail:         peering@intl.att.com
abuse-mailbox:  peering@intl.att.com
admin-c:        DR7890-AP
tech-c:         DR7890-AP
auth:           # Filtered
remarks:        peering@intl.att.com was validated on 2025-11-27
mnt-by:         MAINT-AP-OPENNET
last-modified:  2026-03-11T14:21:52Z
source:         APNIC

organisation:   ORG-AJK1-AP
org-name:       AT&T Japan K.K.
org-type:       LIR
country:        JP
address:        Toranomon Twin Bldg
address:        2-10-1 Toranomon
address:        AT&T PO: PR515809
phone:          +81-3-3582-2304
fax-no:         +81-3-3505-1771
e-mail:         peering@intl.att.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:44Z
source:         APNIC

role:           ABUSE ATTOPENNETAP
country:        ZZ
address:        All of AP
phone:          +000000000
e-mail:         peering@intl.att.com
admin-c:        DR7890-AP
tech-c:         DR7890-AP
nic-hdl:        AA1420-AP
remarks:        Generated from irt object IRT-ATT-OPENNET-AP
remarks:        peering@intl.att.com was validated on 2025-11-27
abuse-mailbox:  peering@intl.att.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-27T13:48:08Z
source:         APNIC

person:         Dani Rueegg
address:        AT&T Global RIR ADMIN
country:        CH
phone:          +1
e-mail:         daniel.rueegg@intl.att.com
nic-hdl:        DR7890-AP
mnt-by:         MAINT-AP-OPENNET
last-modified:  2014-12-11T10:12:01Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS9249 - AS10239",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2022-09-22",
    "source" : "APNIC"
  }, {
    "as_block" : "AS9249 - AS10239",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2022-09-22",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS9935",
    "as_name" : "AGNSCUS-HK",
    "description" : [ "AGNS Customer AS" ],
    "country" : "JP",
    "organization" : "ORG-AJK1-AP",
    "admin_contacts" : [ "dr7890-AP" ],
    "tech_contacts" : [ "dr7890-AP" ],
    "abuse_contacts" : [ "AA1420-AP" ],
    "notify" : [ "dr6348@att.com" ],
    "mnt_irt" : [ "IRT-ATT-OPENNET-AP" ],
    "mnt_lower" : [ "MAINT-AP-OPENNET" ],
    "mnt_routes" : [ "MAINT-AP-OPENNET" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2020-07-07",
    "source" : "APNIC"
  }, {
    "aut_num" : "AS9935",
    "as_name" : "AGNSCUS-HK",
    "description" : [ "AGNS Customer AS" ],
    "country" : "JP",
    "organization" : "ORG-AJK1-AP",
    "admin_contacts" : [ "dr7890-AP" ],
    "tech_contacts" : [ "dr7890-AP" ],
    "abuse_contacts" : [ "AA1420-AP" ],
    "notify" : [ "dr6348@att.com" ],
    "mnt_irt" : [ "IRT-ATT-OPENNET-AP" ],
    "mnt_lower" : [ "MAINT-AP-OPENNET" ],
    "mnt_routes" : [ "MAINT-AP-OPENNET" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2020-07-07",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-ATT-OPENNET-AP",
    "address" : [ "All of AP" ],
    "email" : [ "peering@intl.att.com" ],
    "abuse_mailbox" : [ "peering@intl.att.com" ],
    "admin_contacts" : [ "DR7890-AP" ],
    "tech_contacts" : [ "DR7890-AP" ],
    "remarks" : [ "peering@intl.att.com was validated on 2025-11-27" ],
    "mnt_by" : [ "MAINT-AP-OPENNET" ],
    "date_updated" : "2026-03-11",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-AJK1-AP",
    "name" : "AT&T Japan K.K.",
    "type" : "LIR",
    "address" : [ "Toranomon Twin Bldg", "2-10-1 Toranomon", "AT&T PO: PR515809" ],
    "country" : [ "JP" ],
    "email" : [ "peering@intl.att.com" ],
    "phone" : [ "+81-3-3582-2304" ],
    "fax_no" : [ "+81-3-3505-1771" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "abuse_contacts" : [ {
    "handle" : "AA1420-AP",
    "name" : "ABUSE ATTOPENNETAP",
    "address" : [ "All of AP" ],
    "country" : "ZZ",
    "email" : [ "peering@intl.att.com" ],
    "abuse_mailbox" : [ "peering@intl.att.com" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "DR7890-AP" ],
    "tech_contacts" : [ "DR7890-AP" ],
    "remarks" : [ "Generated from irt object IRT-ATT-OPENNET-AP", "peering@intl.att.com was validated on 2025-11-27" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2025-11-27",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS2686	AT&T Enterprises, LLC	US

Upstreams

AS Number	Description	Country
AS2686	AT&T Enterprises, LLC	US

Contacts

Email Contacts

daniel.rueegg@intl.att.com peering@intl.att.com

Abuse Contacts

peering@intl.att.com

ASN Lookup Tool

ASN Summary