Universidade da Madeira

BGP inherited

Cluster stats

Netblocks	10 · 1,043 IPv4 addresses
All fragments	23 blocks across 2 clusters
Cluster ID	208852444
Registry	RIPE
Customers	find customers using this network →

Evidence & provenance ?

Attribution	BGP parent (inherited)
Shared handles	clustered on 5 shared RIR contact/maintainer handles
Registry names	1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

5 weekly snapshots · JSON

10 0 netblocks since 2026-07-05

2026-07-05 peak 10 2026-07-19

IP Ranges (10)

⬇ export CSV

CIDR	Org name	Registry	Status	Confidence
192.132.55.0/24	Universidade da Madeira	RIPE	LEGACY	● high
193.136.232.0/23	Universidade da Madeira	RIPE	ASSIGNED PA	● high
193.137.1.179/32	Universidade da Madeira	RIPE	ASSIGNED PA	● high
193.137.59.48/29	Universidade da Madeira	RIPE	ASSIGNED PA	● high
193.137.226.0/24	Universidade da Madeira	RIPE	ASSIGNED PA	● high
194.210.4.10/32	Universidade da Madeira	RIPE	ASSIGNED PA	● high
194.210.215.240/28	Universidade da Madeira	RIPE	ASSIGNED PA	● high
2001:690:810:12::/64	Universidade da Madeira	RIPE	ASSIGNED	● high
2001:690:810:102::/64	Universidade da Madeira	RIPE	ASSIGNED	● high
2001:690:20b0::/48	Universidade da Madeira	RIPE	ASSIGNED	● high

Possibly related to this organisation

what's this?

Same name family

Separately-registered clusters whose names share “Universidade da” — often per-country or per-system registrations of the same brand, occasionally a different organisation sharing the name. Not counted in this organisation's own footprint.

Universidade da Beira Interior 13 blocks

Sub-allocations under carriers

IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own naming convention, not a direct registration.

UNIVERSIDADECLESIASTICASANDAMASO via TELEFONICA DE ESPANA S.A.U. sub-allocation
Universidade Catolica Portuguesa via COLT Technology Services Group Limited sub-allocation
UNIVERSIDADEUROPEADEMADRID via TELEFONICA DE ESPANA S.A.U. sub-allocation
M_CIENCIA_UNIVERSIDADES via Ministerio de Transformacion Digital y de la Funcion Publica sub-allocation
UNIVERSIDADEUROPEADECANARIAS via VODAFONE ESPANA S.A.U. sub-allocation
FUNDACIONUNIVERSIDADEMPRESAATTMAUROMARTINMEGIA via VODAFONE ESPANA S.A.U. sub-allocation

Network trust

what's this?

RPKI hygiene: A how networks compare →

100.0% of checked blocks have valid RPKI ROA coverage (10 of 10)

Possible discrepancies (4)

These blocks are registered to Universidade da Madeira but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2001:690:20b0::/48 /48	authorized for AS1930 — Fundacao para a Ciencia e a Tecnologia, I.P.
193.136.232.0/23 /23	authorized for AS1930 — Fundacao para a Ciencia e a Tecnologia, I.P.
193.137.226.0/24 /24	authorized for AS1930 — Fundacao para a Ciencia e a Tecnologia, I.P.
192.132.55.0/24 /24	authorized for AS1930 — Fundacao para a Ciencia e a Tecnologia, I.P.

NIC Handles

AS1930-MNT DUMY-RIPE DUMY-RIPE ORG-UDM21-RIPE RIPE-NCC-LEGACY-MNT