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Interesting Subnets

Directory of active subnets observed by Syndu. Each row is the latest cached SubnetSnapshot per subnet and includes: density, traffic, geo/ASN representatives, and risk distribution.
Active filter: Fonseca · Clear
Snapshot 2026-03-04 Results 11 Page 1 / 1

149.78.168.0/24

Risk Max — LOW Footprint 5.078% Hits 19
Prefix / IP version
/24 · IPv4
Network
149.78.168.0
Broadcast
149.78.168.255
Observed IPs / Subnet size
13 observed · 256 total
Centroid
10.8861 , -72.8487
Hits / Errors
19 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS274141 · CABLE GUAJIRA LIMITADA
Top organization / ISP
Cable Guajira Ltda · Cable Guajira Ltda
Top geo
Colombia · La Guajira Department · Fonseca
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

181.78.19.0/24

Risk Max — LOW Footprint 4.688% Hits 23
Prefix / IP version
/24 · IPv4
Network
181.78.19.0
Broadcast
181.78.19.255
Observed IPs / Subnet size
12 observed · 256 total
Centroid
10.31026347826087 , -73.64279565217392
Hits / Errors
23 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS52468 · UFINET PANAMA S.A.
Top organization / ISP
UFINET COLOMBIA, S. A · IFX Networks Argentina S.R.L
Top geo
Colombia · Magdalena Department · Fonseca
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

45.179.42.0/24

Risk Max — LOW Footprint 3.906% Hits 12
Prefix / IP version
/24 · IPv4
Network
45.179.42.0
Broadcast
45.179.42.255
Observed IPs / Subnet size
10 observed · 256 total
Centroid
-29.625200000000003 , -50.9797
Hits / Errors
12 hits · 2 errors
First / Last seen
2026-02-22 02:00 · 2026-02-26 02:00
Top ASN
AS269082 · Fonseca Telecomunicacoes ME
Top organization / ISP
Fonseca Telecomunicacoes ME · Fonseca Telecomunicacoes ME
Top geo
Brazil · Rio Grande do Sul · Sapiranga
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

45.163.246.0/24

Risk Max — LOW Footprint 3.516% Hits 12
Prefix / IP version
/24 · IPv4
Network
45.163.246.0
Broadcast
45.163.246.255
Observed IPs / Subnet size
9 observed · 256 total
Centroid
-22.8732 , -42.3396
Hits / Errors
12 hits · 1 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS268588 · J.LP FONSECA TELECOM
Top organization / ISP
J.LP FONSECA TELECOM · J.LP FONSECA TELECOM
Top geo
Brazil · Rio de Janeiro · Araruama
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

190.9.81.0/24

Risk Max — LOW Footprint 1.562% Hits 4
Prefix / IP version
/24 · IPv4
Network
190.9.81.0
Broadcast
190.9.81.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
-13.0059 , -39.2234
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS271591 · TOP NET SERVICOS DE PROVEDOR LTDA - ME
Top organization / ISP
Fonseca Reis Provedor de Internet LTDA · TOP NET SERVICOS DE PROVEDOR LTDA - ME
Top geo
Brazil · Bahia · Santo Antônio de Jesus
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

177.12.81.0/24

Risk Max — LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
177.12.81.0
Broadcast
177.12.81.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
-16.6112 , -44.4367
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-03-01 02:00
Top ASN
AS263031 · SCJ Info Com. Serv. de Informatica Ltda
Top organization / ISP
Evandro Oliveira Fonseca ME · SCJ Info Com. Serv. de Informatica Ltda
Top geo
Brazil · Minas Gerais · Coração de Jesus
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

177.91.134.0/24

Risk Max — LOW Footprint 0.781% Hits 3
Prefix / IP version
/24 · IPv4
Network
177.91.134.0
Broadcast
177.91.134.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-5.8111 , -35.2235
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-03-01 02:00
Top ASN
AS263443 · L R DA FONSECA ME
Top organization / ISP
L R DA FONSECA ME · L R DA FONSECA ME
Top geo
Brazil · Rio Grande do Norte · Natal
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

177.91.132.0/24

Risk Max — LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
177.91.132.0
Broadcast
177.91.132.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-5.8111 , -35.2235
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-03-01 02:00
Top ASN
AS263443 · L R DA FONSECA ME
Top organization / ISP
L R DA FONSECA ME · L R DA FONSECA ME
Top geo
Brazil · Rio Grande do Norte · Natal
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

177.91.135.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
177.91.135.0
Broadcast
177.91.135.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-5.8111 , -35.2235
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS263443 · L R DA FONSECA ME
Top organization / ISP
L R DA FONSECA ME · L R DA FONSECA ME
Top geo
Brazil · Rio Grande do Norte · Natal
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

45.179.41.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
45.179.41.0
Broadcast
45.179.41.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-29.6252 , -50.9797
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
AS269082 · Fonseca Telecomunicacoes ME
Top organization / ISP
Fonseca Telecomunicacoes ME · Fonseca Telecomunicacoes ME
Top geo
Brazil · Rio Grande do Sul · Sapiranga
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

177.91.133.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.91.133.0
Broadcast
177.91.133.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-5.8111 , -35.2235
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS263443 · L R DA FONSECA ME
Top organization / ISP
L R DA FONSECA ME · L R DA FONSECA ME
Top geo
Brazil · Rio Grande do Norte · Natal
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →