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Autonomous System

AS26421

Ponderosa Cablevision

Announced IPs
8,960
CIDR prefixes
39
ASN
AS26421

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

70/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
23.29.0.0/20 4.1K
98.9%
Ponderosa Cablevision US California Auberry
23.29.0.0/21 2.0K
99.2%
Ponderosa Cablevision US California Auberry
23.29.12.0/22 1.0K
98.1%
Ponderosa Cablevision US California Auberry
23.29.10.0/23 512
99.2%
Ponderosa Cablevision US California Auberry
50.58.142.0/23 512
89.5%
Ponderosa Cablevision US California North Fork
74.202.200.0/23 512
44.7%
Ponderosa Cablevision US California North Fork
206.169.218.0/23 512
56.4%
Ponderosa Cablevision US
209.150.76.0/23 512
68.0%
Ponderosa Cablevision US
209.234.206.0/23 512
61.7%
Ponderosa Cablevision US California Madera
209.234.208.0/23 512
62.3%
Ponderosa Cablevision US
209.234.216.0/23 512
64.1%
Ponderosa Cablevision US California Clovis
23.29.8.0/24 256
98.8%
Ponderosa Cablevision US California Auberry
50.58.142.0/24 256
89.5%
Ponderosa Cablevision US California North Fork
64.129.228.0/24 256
53.9%
Ponderosa Cablevision US
206.169.217.0/24 256
57.4%
Ponderosa Cablevision US
207.114.159.0/24 256
71.1%
Ponderosa Cablevision US
209.234.196.0/24 256
60.5%
Ponderosa Cablevision US
209.234.222.0/24 256
68.0%
Ponderosa Cablevision US
23.29.9.128/25 128
99.2%
Ponderosa Cablevision US California Auberry
50.58.143.128/25 128
89.8%
Ponderosa Cablevision US California North Fork
23.29.9.0/26 64
100.0%
Ponderosa Cablevision US California Auberry
50.58.143.0/26 64
89.1%
Ponderosa Cablevision US California North Fork
23.29.9.64/27 32
100.0%
Ponderosa Cablevision US California Auberry
50.58.143.64/27 32
90.6%
Ponderosa Cablevision US California North Fork
23.29.9.80/28 16
0.0%
Ponderosa Cablevision US
23.29.9.96/28 16
100.0%
Ponderosa Cablevision US California Auberry
50.58.143.96/28 16
87.5%
Ponderosa Cablevision US California North Fork
23.29.9.64/29 8
0.0%
Ponderosa Cablevision US
23.29.9.120/29 8
100.0%
Ponderosa Cablevision US California Auberry
50.58.143.120/29 8
87.5%
Ponderosa Cablevision US California North Fork
23.29.9.76/30 4
0.0%
Ponderosa Cablevision US
23.29.9.116/30 4
100.0%
Ponderosa Cablevision US California Auberry
50.58.143.112/30 4
100.0%
Ponderosa Cablevision US California North Fork
23.29.9.72/31 2
0.0%
Ponderosa Cablevision US
23.29.9.114/31 2
100.0%
Ponderosa Cablevision US California Auberry
50.58.143.118/31 2
100.0%
Ponderosa Cablevision US California North Fork
23.29.9.74/32 1
0.0%
Ponderosa Cablevision US
23.29.9.112/32 1
100.0%
Ponderosa Cablevision US California Auberry
50.58.143.116/32 1
100.0%
Ponderosa Cablevision US California North Fork

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS26421 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
23.29.0.0/20 14,019 2026-07-23 21:14:33
209.234.206.0/24 13,834 2026-07-23 20:43:30
206.169.218.0/23 13,811 2026-07-23 20:43:30
206.169.217.0/24 13,781 2026-07-23 20:43:30
209.234.208.0/23 13,773 2026-07-23 20:43:30
209.234.216.0/23 13,768 2026-07-23 20:43:30
209.234.222.0/24 13,733 2026-07-23 20:43:30
209.234.196.0/24 13,716 2026-07-23 20:43:30
209.234.207.0/24 13,657 2026-07-23 20:43:30
209.150.76.0/24 13,655 2026-07-23 20:43:30
74.202.200.0/23 13,649 2026-07-23 20:43:30
64.129.228.0/24 13,641 2026-07-23 20:43:30
207.114.159.0/24 13,611 2026-07-23 20:43:30
209.150.77.0/24 13,557 2026-07-23 20:43:30
50.58.142.0/23 13,448 2026-07-23 21:14:51

Frequently Asked Questions

What is AS26421?

AS26421 is an Autonomous System Number assigned to Ponderosa Cablevision. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS26421 announce?

AS26421 announces 9.0K IPv4 addresses distributed across 39 routed CIDR prefixes. The network is registered in United States.

Who operates AS26421?

AS26421 is operated by Ponderosa Cablevision. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS26421 registered in?

AS26421 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 21:10:33 UTC
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