ASN AS55756 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS55756?

AS55756 is listed under TATA Communications Internet Services Ltd.

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.

AS55756 TATA Communications Internet Services Ltd

ASN Lookup Tool

TATA Communications Internet Services Ltd tatatel.co.in

IN 2 Routes

AS Data

AS55756

AS55756 – TATA Communications Internet Services Ltd

AS Number	55756
AS Name	TCISL-AS-AP
Organization	TATA Communications Internet Services Ltd (org-tcis1-ap)
Country	IN
Website	tatatel.co.in
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	ISP
Registry	APNIC
Date Allocated	N/A

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Use ASN data for AS55756 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
150.107.123.0/24	AS55756	TATA Communications Internet Services Ltd	TATA Communications Internet Services Ltd	256
150.107.121.0/24	AS55756	TATA Communications Internet Services Ltd	TATA Communications Internet Services Ltd	256

Raw Whois Response

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

% Information related to 'AS55296 - AS56319'

as-block:       AS55296 - AS56319
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:  2009-09-03T01:15:30Z
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 'AS55756'

% Abuse contact for 'AS55756' is 'karamjeet.singh@tatatel.co.in'

aut-num:        AS55756
as-name:        TCISL-AS-AP
descr:          TATA Communications Internet Services Ltd
descr:          Scope Minar
descr:          Core 1. 2nd Floor
descr:          Laxmi Nagar
country:        IN
org:            ORG-TCIS1-AP
admin-c:        KS1346-AP
tech-c:         KS1346-AP
abuse-c:        AT1380-AP
mnt-lower:      MAINT-IN-DIL
mnt-routes:     MAINT-IN-DIL
mnt-by:         APNIC-HM
mnt-irt:        IRT-TCISL-IN
last-modified:  2024-11-29T04:08:16Z
source:         APNIC

irt:            IRT-TCISL-IN
address:        Scope Minar, Core 1
address:        2nd Floor, Laxmi Nagar
address:        New Delhi - 110092
e-mail:         karamjeet.singh@tatatel.co.in
abuse-mailbox:  karamjeet.singh@tatatel.co.in
admin-c:        KS1346-AP
tech-c:         KS1346-AP
auth:           # Filtered
remarks:        karamjeet.singh@tatatel.co.in is invalid
mnt-by:         MAINT-IN-DIL
last-modified:  2026-03-25T13:10:56Z
source:         APNIC

organisation:   ORG-TCIS1-AP
org-name:       TATA Communications Internet Services Ltd
org-type:       LIR
country:        IN
address:        Tata Communications Ltd
address:        GCSC, Alandi Road
address:        Dighi
phone:          +91-9805084887
fax-no:         +91-20-66143278
e-mail:         karamjeet.singh@tatatel.co.in
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-01-02T12:58:45Z
source:         APNIC

role:           ABUSE TCISLIN
country:        ZZ
address:        Scope Minar, Core 1
address:        2nd Floor, Laxmi Nagar
address:        New Delhi - 110092
phone:          +000000000
e-mail:         karamjeet.singh@tatatel.co.in
admin-c:        KS1346-AP
tech-c:         KS1346-AP
nic-hdl:        AT1380-AP
remarks:        Generated from irt object IRT-TCISL-IN
remarks:        karamjeet.singh@tatatel.co.in is invalid
abuse-mailbox:  karamjeet.singh@tatatel.co.in
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-25T13:12:00Z
source:         APNIC

person:         Karamjeet Singh
address:        Scope Minar
country:        IN
phone:          +91-11-224-48000
e-mail:         karamjeet.singh@tatatel.co.in
nic-hdl:        KS1346-AP
mnt-by:         MAINT-IN-DIL
last-modified:  2024-11-27T16:51:23Z
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" : "AS55296 - AS56319",
    "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" : "2009-09-03",
    "source" : "APNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS55756",
    "as_name" : "TCISL-AS-AP",
    "description" : [ "TATA Communications Internet Services Ltd", "Scope Minar", "Core 1. 2nd Floor", "Laxmi Nagar" ],
    "country" : "IN",
    "organization" : "ORG-TCIS1-AP",
    "admin_contacts" : [ "KS1346-AP" ],
    "tech_contacts" : [ "KS1346-AP" ],
    "abuse_contacts" : [ "AT1380-AP" ],
    "mnt_irt" : [ "IRT-TCISL-IN" ],
    "mnt_lower" : [ "MAINT-IN-DIL" ],
    "mnt_routes" : [ "MAINT-IN-DIL" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2024-11-29",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-TCISL-IN",
    "address" : [ "Scope Minar, Core 1", "2nd Floor, Laxmi Nagar", "New Delhi - 110092" ],
    "city" : "New Delhi",
    "zip_code" : "110092",
    "email" : [ "karamjeet.singh@tatatel.co.in" ],
    "abuse_mailbox" : [ "karamjeet.singh@tatatel.co.in" ],
    "admin_contacts" : [ "KS1346-AP" ],
    "tech_contacts" : [ "KS1346-AP" ],
    "remarks" : [ "karamjeet.singh@tatatel.co.in is invalid" ],
    "mnt_by" : [ "MAINT-IN-DIL" ],
    "date_updated" : "2026-03-25",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-TCIS1-AP",
    "name" : "TATA Communications Internet Services Ltd",
    "type" : "LIR",
    "address" : [ "Tata Communications Ltd", "GCSC, Alandi Road", "Dighi" ],
    "street" : "Gcsc Alandi Road",
    "city" : "Dighi",
    "country" : [ "IN" ],
    "email" : [ "karamjeet.singh@tatatel.co.in" ],
    "phone" : [ "+91-9805084887" ],
    "fax_no" : [ "+91-20-66143278" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2025-01-02",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "KS1346-AP",
    "name" : "Karamjeet Singh",
    "address" : [ "Scope Minar" ],
    "country" : "IN",
    "email" : [ "karamjeet.singh@tatatel.co.in" ],
    "phone" : [ "+91-11-224-48000" ],
    "mnt_by" : [ "MAINT-IN-DIL" ],
    "date_updated" : "2024-11-27",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "KS1346-AP",
    "name" : "Karamjeet Singh",
    "address" : [ "Scope Minar" ],
    "country" : "IN",
    "email" : [ "karamjeet.singh@tatatel.co.in" ],
    "phone" : [ "+91-11-224-48000" ],
    "mnt_by" : [ "MAINT-IN-DIL" ],
    "date_updated" : "2024-11-27",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AT1380-AP",
    "name" : "ABUSE TCISLIN",
    "address" : [ "Scope Minar, Core 1", "2nd Floor, Laxmi Nagar", "New Delhi - 110092" ],
    "city" : "New Delhi",
    "zip_code" : "110092",
    "country" : "ZZ",
    "email" : [ "karamjeet.singh@tatatel.co.in" ],
    "abuse_mailbox" : [ "karamjeet.singh@tatatel.co.in" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "KS1346-AP" ],
    "tech_contacts" : [ "KS1346-AP" ],
    "remarks" : [ "Generated from irt object IRT-TCISL-IN", "karamjeet.singh@tatatel.co.in is invalid" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-03-25",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS45820	Tata Teleservices ISP AS	IN
AS45820	TTSL ISP DIVISION	IN

Upstreams

AS Number	Description	Country
AS45820	TTSL ISP DIVISION	IN

Contacts

Email Contacts

karamjeet.singh@tatatel.co.in

Abuse Contacts