38000 CRISIL-AS - [CRISIL Limited.Autonomous System], IN
Adjacency: 4 Upstream: 4 Downstream: 0
Upstream Adjacent AS list
AS6453 AS6453 - TATA COMMUNICATIONS (AMERICA) INC, US
AS9498 BBIL-AP - BHARTI Airtel Ltd., IN
AS4755 TATACOMM-AS - TATA Communications formerly VSNL is Leading ISP, IN
AS8220 COLT - COLT Technology Services Group Limited, GB
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 32722 AS38000 ORIGIN Originate: 1280 /21.68 Transit: 0 /0.00 CRISIL-AS - [CRISIL Limited.Autonomous System], IN
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 22555 AS38000 CRISIL-AS - [CRISIL Limited.Autonomous System 5 2 1 4 1 20.00% Prefix AS Path Aggregation Suggestion 103.91.116.0/24 4608 24115 9498 38000 103.91.117.0/24 4777 2516 8220 38000 203.175.4.0/24 4777 2516 6453 4755 38000 203.175.6.0/23 4608 24115 9498 38000 + Announce - aggregate of 203.175.6.0/24 (4608 24115 9498 38000) and 203.175.7.0/24 (4608 24115 9498 38000) 203.175.6.0/24 4608 24115 9498 38000 - Withdrawn - aggregated with 203.175.7.0/24 (4608 24115 9498 38000) 203.175.7.0/24 4608 24115 9498 38000 - Withdrawn - aggregated with 203.175.6.0/24 (4608 24115 9498 38000)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS38000 5 More Specifics 5 Total Advertisements CRISIL-AS - [CRISIL Limited.Autonomous System], IN
103.91.116.0/24 103.91.116.0/22
103.91.117.0/24 103.91.116.0/22
203.175.4.0/24 203.175.4.0/22
203.175.6.0/24 203.175.4.0/22
203.175.7.0/24 203.175.4.0/22
whois: 402603
IANA has recorded AS38000 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS38000\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS37888 - AS38911'
as-block: AS37888 - AS38911
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: 2009-09-29T06:04:16Z
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 'AS37971 - AS38085'
as-block: AS37971 - AS38085
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: 2008-09-04T06:40:26Z
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 'AS38000'
% Abuse contact for 'AS38000' is 'rafique.mistry@crisil.com'
aut-num: AS38000
as-name: CRISIL-AS
descr: [CRISIL Limited.Autonomous System]
descr: Research & Rating Services Mumbai, Maharashtra, India
country: IN
import: from AS4755 action pref=100; accept ANY
import: from AS9498 action pref=100; accept ANY
export: to AS4755 announce AS38000
export: to AS9498 announce AS38000
remarks: For routing problems with this ASN contact the admin-c
org: ORG-CL14-AP
admin-c: YR388-AP
tech-c: YR388-AP
abuse-c: AC2249-AP
notify: bala@irevna.com
mnt-lower: MAINT-IN-IREVNALTD
mnt-routes: MAINT-IN-IREVNALTD
mnt-by: APNIC-HM
mnt-irt: IRT-CRISIL-IN
last-modified: 2022-08-15T07:48:07Z
source: APNIC
irt: IRT-CRISIL-IN
address: Crisil Limited
address: CRISIL House, Central Avenue, Hiranandani Business Park, Powai, Mumbai- 400 076
address: Mumbai - India
e-mail: rafique.mistry@crisil.com
abuse-mailbox: rafique.mistry@crisil.com
admin-c: YR388-AP
tech-c: YR388-AP
auth: # Filtered
remarks: rafique.mistry@crisil.com was validated on 2026-02-03
mnt-by: MAINT-IN-IREVNALTD
last-modified: 2026-02-03T14:17:35Z
source: APNIC
organisation: ORG-CL14-AP
org-name: Crisil Limited
org-type: LIR
country: IN
address: CRISIL LTD
address: Lightbridge IT Park, Saki Vihar Road, Andheri East
phone: +919833510041
e-mail: Yogesh.Raibagkar@crisil.com
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2025-01-28T12:56:09Z
source: APNIC
role: ABUSE CRISILIN
country: ZZ
address: Crisil Limited
address: CRISIL House, Central Avenue, Hiranandani Business Park, Powai, Mumbai- 400 076
address: Mumbai - India
phone: +000000000
e-mail: rafique.mistry@crisil.com
admin-c: YR388-AP
tech-c: YR388-AP
nic-hdl: AC2249-AP
remarks: Generated from irt object IRT-CRISIL-IN
remarks: rafique.mistry@crisil.com was validated on 2026-02-03
abuse-mailbox: rafique.mistry@crisil.com
mnt-by: APNIC-ABUSE
last-modified: 2026-02-03T14:18:04Z
source: APNIC
person: Yogesh Raibagkar
address: CRISIL House, Central Avenue, Hiranandani Business Park, Powai 400076
country: IN
phone: +912240978147
e-mail: NetworkMon@crisil.com
nic-hdl: YR388-AP
mnt-by: MAINT-IN-IREVNALTD
last-modified: 2021-07-09T07:53:06Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)