ASN AS55566 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS55566?

AS55566 is listed under Inter University Centre for Astronomy and Astrophysics.

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.

AS55566 Inter University Centre for Astronomy and Astrophysics

ASN Lookup Tool

Inter University Centre for Astronomy and Astrophysics iucaa.ernet.in

IN 3 Routes

AS Data

AS55566

AS55566 – Inter University Centre for Astronomy and Astrophysics

AS Number	55566
AS Name	IUCAA-IN
Organization	Inter University Centre for Astronomy and Astrophysics()
Country	IN
Website	iucaa.ernet.in
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	APNIC
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS55566 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
103.117.200.0/23	AS55566	Inter University Centre for Astronomy and Astrophysics	Inter University Centre for Astronomy and Astrophysics	512
202.52.53.0/24	AS55566	Inter University Centre for Astronomy and Astrophysics	Inter University Centre for Astronomy and Astrophysics	256
103.117.200.0/24	AS55566	Inter University Centre for Astronomy and Astrophysics	Inter University Centre for Astronomy and Astrophysics	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 'AS55566'

% Abuse contact for 'AS55566' is 'netops@iucaa.ernet.in'

aut-num:        AS55566
as-name:        IUCAA-IN
descr:          Inter University Centre for Astronomy and Astrophysics
country:        IN
admin-c:        SP981-AP
tech-c:         SP981-AP
mnt-irt:        IRT-IUCAA-IN
mnt-routes:     MAINT-IUCAA-IN
mnt-by:         MAINT-IN-IRINN
last-modified:  2013-05-27T23:39:57Z
source:         APNIC

irt:            IRT-IUCAA-IN
address:        Post Bag 4 Ganeshkhind Pune University campus Pune
e-mail:         netops@iucaa.ernet.in
abuse-mailbox:  netops@iucaa.ernet.in
admin-c:        SP981-AP
tech-c:         SP981-AP
auth:           # Filtered
mnt-by:         MAINT-IUCAA-IN
last-modified:  2025-11-18T00:28:11Z
source:         APNIC

role:           Sarah Ponrathnam
address:        Post Bag 4 Ganeshkhind Pune University campus Pune
country:        IN
phone:          +91-020-25604100
fax-no:         +91-020-25604100
e-mail:         netops@iucaa.ernet.in
admin-c:        SP981-AP
tech-c:         SP981-AP
nic-hdl:        SP981-AP
mnt-by:         MAINT-IUCAA-IN
last-modified:  2010-07-05T01:01:58Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)

Parsed Whois Response

Peers

AS Number	Description	Country
AS55824	NKN Core Network	IN
AS55824	National Knowledge Network	IN

Upstreams

AS Number	Description	Country
AS55824	National Knowledge Network	IN

Contacts

Email Contacts

netops@iucaa.ernet.in

Abuse Contacts