asn.dev

Autonomous system

AS55566 IUCAA-IN Inter University Centre for Astronomy and Astrophysics

Unclassified ARIN

IPv4 addresses 768 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly IN
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Inter University Centre for Astronomy and Astrophysics

India · AI-generated

education research astronomy india

IUCAA-IN is the autonomous system for Inter University Centre for Astronomy and Astrophysics.

What it's used for

  • The address space carries institutional infrastructure, evidenced by the reverse DNS record audf.iucaa.in and netnames IUCAA-IN.
  • The AS announces 768 IPv4 addresses across 2 prefixes with only 1 observed neighbour, indicating a small, isolated research network rather than a transit or access provider.
  • Traffic consists of internal research, administrative, and educational endpoints for the UGC-funded astronomy institute.

Notable

  • Registrants for both prefixes are IRT-IRINN-IN and IRT-IUCAA-IN, both associated with the holder.
  • The inventory is small and finely subdivided into two distinct blocks, consistent with an internal corporate or institutional estate.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS55824NKN Core Network186

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 2 prefixes · 768 addresses IPv6 0 prefixes

CountryNamePrefixes
INIndia2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS55566
Registry name
IUCAA-IN
Abuse contact
netops@iucaa.ernet.in
Registered
2010-07-05
Last changed
2013-05-27
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 3 valid, 0 with no ROA
ROAs
2 authorising AS55566
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
4 naming AS55566

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,778 prefixes, as published 2026-10-20. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check