ASN AS18383 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18383?

AS18383 is listed under CAHI Corporation.

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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AS18383 CAHI Corporation | IPGeolocation.io

CAHI Corporation cahi.net

JP 1 Routes

AS Data

AS18383

AS18383 – CAHI Corporation

AS Number	18383
AS Name	CAHI-AS-JP
Organization	CAHI Corporation (org-cc20-ap)
Country	JP
Website	cahi.net
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS18383 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
202.10.96.0/20	AS18383	CAHI Corporation	CAHI Corporation	4096

Raw Whois Response

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

% Information related to 'AS17653 - AS18431'

as-block:       AS17653 - AS18431
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:  2019-01-08T23:19:07Z
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 'AS18383'

% Abuse contact for 'AS18383' is 'abuse@cahi.net'

aut-num:        AS18383
as-name:        CAHI-AS-JP
descr:          CAHI Corporation,
descr:          Internet Service Provider,
descr:          Kyoto
country:        JP
import:         from AS7502 Action pref=100; accept ANY
import:         from AS18122 Action pref=200; accept ANY
export:         to AS7502 announce AS18383
export:         to AS18122 announce AS18383
remarks:        mailto: cas@trans-nt.com
org:            ORG-CC20-AP
admin-c:        HN21-AP
tech-c:         HN21-AP
abuse-c:        AC2163-AP
notify:         cas@cahi.net
mnt-lower:      MAINT-JP-CAHI
mnt-routes:     MAINT-JP-CAHI
mnt-by:         APNIC-HM
mnt-irt:        IRT-CAHI-JP
last-modified:  2022-06-06T00:03:27Z
source:         APNIC

irt:            IRT-CAHI-JP
address:        Kyoto Research Park Bldg.
address:        93 Chudoji-Awatacho,
address:        Shimogyo, Kyoto 600-8815 JAPAN
e-mail:         abuse@cahi.net
abuse-mailbox:  abuse@cahi.net
admin-c:        HN21-AP
tech-c:         HN21-AP
auth:           # Filtered
remarks:        abuse@cahi.net was validated on 2026-02-28
mnt-by:         MAINT-JP-CAHI
last-modified:  2026-02-28T16:01:54Z
source:         APNIC

organisation:   ORG-CC20-AP
org-name:       CAHI Corporation
org-type:       LIR
country:        JP
address:        Kyoto Research Park Bldg. # 6
address:        93 Chudoji Awatacho
phone:          +81-75-316-6111
fax-no:         +81-75-316-6112
e-mail:         info@cahi.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:52Z
source:         APNIC

role:           ABUSE CAHIJP
country:        ZZ
address:        Kyoto Research Park Bldg.
address:        93 Chudoji-Awatacho,
address:        Shimogyo, Kyoto 600-8815 JAPAN
phone:          +000000000
e-mail:         abuse@cahi.net
admin-c:        HN21-AP
tech-c:         HN21-AP
nic-hdl:        AC2163-AP
remarks:        Generated from irt object IRT-CAHI-JP
remarks:        abuse@cahi.net was validated on 2026-02-28
abuse-mailbox:  abuse@cahi.net
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-28T16:02:07Z
source:         APNIC

person:         Hiroki Nakano
nic-hdl:        HN21-AP
e-mail:         cas@cahi.net
address:        Kyoto Research Park Bldg. #6,
address:        93 Chudoji-Awatacho,
address:        Shimogyo, Kyoto 600-8815 JAPAN
phone:          +81-75-316-6111
fax-no:         +81-75-316-6112
country:        JP
mnt-by:         MAINT-JP-CAHI
last-modified:  2008-09-04T07:29:20Z
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:       18187 - 18431
ASName:         APNIC-ASBLOCK-17915
ASHandle:       AS18187
RegDate:        2002-09-11
Updated:        2024-09-25
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/18187

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 'AS17653 - AS18431'

as-block:       AS17653 - AS18431
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:  2019-01-08T23:19:07Z
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 'AS18383'

% Abuse contact for 'AS18383' is 'abuse@cahi.net'

aut-num:        AS18383
as-name:        CAHI-AS-JP
descr:          CAHI Corporation,
descr:          Internet Service Provider,
descr:          Kyoto
country:        JP
import:         from AS7502 Action pref=100; accept ANY
import:         from AS18122 Action pref=200; accept ANY
export:         to AS7502 announce AS18383
export:         to AS18122 announce AS18383
remarks:        mailto: cas@trans-nt.com
org:            ORG-CC20-AP
admin-c:        HN21-AP
tech-c:         HN21-AP
abuse-c:        AC2163-AP
notify:         cas@cahi.net
mnt-lower:      MAINT-JP-CAHI
mnt-routes:     MAINT-JP-CAHI
mnt-by:         APNIC-HM
mnt-irt:        IRT-CAHI-JP
last-modified:  2022-06-06T00:03:27Z
source:         APNIC

irt:            IRT-CAHI-JP
address:        Kyoto Research Park Bldg.
address:        93 Chudoji-Awatacho,
address:        Shimogyo, Kyoto 600-8815 JAPAN
e-mail:         abuse@cahi.net
abuse-mailbox:  abuse@cahi.net
admin-c:        HN21-AP
tech-c:         HN21-AP
auth:           # Filtered
remarks:        abuse@cahi.net was validated on 2026-02-28
mnt-by:         MAINT-JP-CAHI
last-modified:  2026-02-28T16:01:54Z
source:         APNIC

organisation:   ORG-CC20-AP
org-name:       CAHI Corporation
org-type:       LIR
country:        JP
address:        Kyoto Research Park Bldg. # 6
address:        93 Chudoji Awatacho
phone:          +81-75-316-6111
fax-no:         +81-75-316-6112
e-mail:         info@cahi.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:52Z
source:         APNIC

role:           ABUSE CAHIJP
country:        ZZ
address:        Kyoto Research Park Bldg.
address:        93 Chudoji-Awatacho,
address:        Shimogyo, Kyoto 600-8815 JAPAN
phone:          +000000000
e-mail:         abuse@cahi.net
admin-c:        HN21-AP
tech-c:         HN21-AP
nic-hdl:        AC2163-AP
remarks:        Generated from irt object IRT-CAHI-JP
remarks:        abuse@cahi.net was validated on 2026-02-28
abuse-mailbox:  abuse@cahi.net
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-28T16:02:07Z
source:         APNIC

person:         Hiroki Nakano
nic-hdl:        HN21-AP
e-mail:         cas@cahi.net
address:        Kyoto Research Park Bldg. #6,
address:        93 Chudoji-Awatacho,
address:        Shimogyo, Kyoto 600-8815 JAPAN
phone:          +81-75-316-6111
fax-no:         +81-75-316-6112
country:        JP
mnt-by:         MAINT-JP-CAHI
last-modified:  2008-09-04T07:29:20Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS17653 - AS18431",
    "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" : "2019-01-08",
    "source" : "APNIC"
  }, {
    "as_block" : "AS17653 - AS18431",
    "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" : "2019-01-08",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS18383",
    "as_name" : "CAHI-AS-JP",
    "description" : [ "CAHI Corporation,", "Internet Service Provider,", "Kyoto" ],
    "country" : "JP",
    "import" : [ "from AS7502 Action pref=100; accept ANY", "from AS18122 Action pref=200; accept ANY" ],
    "export" : [ "to AS7502 announce AS18383", "to AS18122 announce AS18383" ],
    "organization" : "ORG-CC20-AP",
    "admin_contacts" : [ "HN21-AP" ],
    "tech_contacts" : [ "HN21-AP" ],
    "abuse_contacts" : [ "AC2163-AP" ],
    "remarks" : [ "mailto: cas@trans-nt.com" ],
    "notify" : [ "cas@cahi.net" ],
    "mnt_irt" : [ "IRT-CAHI-JP" ],
    "mnt_lower" : [ "MAINT-JP-CAHI" ],
    "mnt_routes" : [ "MAINT-JP-CAHI" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2022-06-06",
    "source" : "APNIC"
  }, {
    "aut_num" : "AS18383",
    "as_name" : "CAHI-AS-JP",
    "description" : [ "CAHI Corporation,", "Internet Service Provider,", "Kyoto" ],
    "country" : "JP",
    "import" : [ "from AS7502 Action pref=100; accept ANY", "from AS18122 Action pref=200; accept ANY" ],
    "export" : [ "to AS7502 announce AS18383", "to AS18122 announce AS18383" ],
    "organization" : "ORG-CC20-AP",
    "admin_contacts" : [ "HN21-AP" ],
    "tech_contacts" : [ "HN21-AP" ],
    "abuse_contacts" : [ "AC2163-AP" ],
    "remarks" : [ "mailto: cas@trans-nt.com" ],
    "notify" : [ "cas@cahi.net" ],
    "mnt_irt" : [ "IRT-CAHI-JP" ],
    "mnt_lower" : [ "MAINT-JP-CAHI" ],
    "mnt_routes" : [ "MAINT-JP-CAHI" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2022-06-06",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-CAHI-JP",
    "address" : [ "Kyoto Research Park Bldg.", "93 Chudoji-Awatacho,", "Shimogyo, Kyoto 600-8815 JAPAN" ],
    "city" : "Kyoto",
    "zip_code" : "600-8815",
    "country" : "JAPAN",
    "email" : [ "abuse@cahi.net" ],
    "abuse_mailbox" : [ "abuse@cahi.net" ],
    "admin_contacts" : [ "HN21-AP" ],
    "tech_contacts" : [ "HN21-AP" ],
    "remarks" : [ "abuse@cahi.net was validated on 2026-02-28" ],
    "mnt_by" : [ "MAINT-JP-CAHI" ],
    "date_updated" : "2026-02-28",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-CC20-AP",
    "name" : "CAHI Corporation",
    "type" : "LIR",
    "address" : [ "Kyoto Research Park Bldg. # 6", "93 Chudoji Awatacho" ],
    "country" : [ "JP" ],
    "email" : [ "info@cahi.net" ],
    "phone" : [ "+81-75-316-6111" ],
    "fax_no" : [ "+81-75-316-6112" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "HN21-AP",
    "name" : "Hiroki Nakano",
    "address" : [ "Kyoto Research Park Bldg. #6,", "93 Chudoji-Awatacho,", "Shimogyo, Kyoto 600-8815 JAPAN" ],
    "street" : "Chudoji-awatacho Shimogyo",
    "city" : "Kyoto",
    "zip_code" : "600-8815",
    "country" : "JP",
    "email" : [ "cas@cahi.net" ],
    "phone" : [ "+81-75-316-6111" ],
    "fax_no" : [ "+81-75-316-6112" ],
    "mnt_by" : [ "MAINT-JP-CAHI" ],
    "date_updated" : "2008-09-04",
    "source" : "APNIC",
    "addressCountry" : "JAPAN"
  } ],
  "technical_contacts" : [ {
    "handle" : "HN21-AP",
    "name" : "Hiroki Nakano",
    "address" : [ "Kyoto Research Park Bldg. #6,", "93 Chudoji-Awatacho,", "Shimogyo, Kyoto 600-8815 JAPAN" ],
    "street" : "Chudoji-awatacho Shimogyo",
    "city" : "Kyoto",
    "zip_code" : "600-8815",
    "country" : "JP",
    "email" : [ "cas@cahi.net" ],
    "phone" : [ "+81-75-316-6111" ],
    "fax_no" : [ "+81-75-316-6112" ],
    "mnt_by" : [ "MAINT-JP-CAHI" ],
    "date_updated" : "2008-09-04",
    "source" : "APNIC",
    "addressCountry" : "JAPAN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AC2163-AP",
    "name" : "ABUSE CAHIJP",
    "address" : [ "Kyoto Research Park Bldg.", "93 Chudoji-Awatacho,", "Shimogyo, Kyoto 600-8815 JAPAN" ],
    "city" : "Kyoto",
    "zip_code" : "600-8815",
    "country" : "ZZ",
    "email" : [ "abuse@cahi.net" ],
    "abuse_mailbox" : [ "abuse@cahi.net" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "HN21-AP" ],
    "tech_contacts" : [ "HN21-AP" ],
    "remarks" : [ "Generated from irt object IRT-CAHI-JP", "abuse@cahi.net was validated on 2026-02-28" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-02-28",
    "source" : "APNIC",
    "addressCountry" : "JAPAN"
  } ]
}

Peers

AS Number	Description	Country
AS18122	Advanced Software Technology & Management	JP
AS7502	Advanced Software Technology & Management	JP
AS7529	GMO NetIRD, Inc.	JP

Upstreams

AS Number	Description	Country
AS7529	GMO NetIRD, Inc.	JP

Contacts

Email Contacts

cas@cahi.net

Abuse Contacts

abuse@cahi.net

ASN Lookup Tool

ASN Summary