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Autonomous System

AS6099

Alameda County Office of Education

Announced IPs
151,040
CIDR prefixes
23
ASN
AS6099

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.

69/100
Moderate
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
206.110.0.0/16 65.5K
21.4%
Alameda County Office of Education US California San Leandro
207.163.0.0/17 32.8K
16.1%
Alameda County Office of Education US California Livermore
207.163.0.0/18 16.4K
24.6%
Alameda County Office of Education US California Livermore
207.163.128.0/18 16.4K
21.5%
Alameda County Office of Education US California Union City
204.88.192.0/19 8.2K
0.0%
Alameda County Office of Education US — —
206.210.224.0/19 8.2K
0.0%
Alameda County Office of Education US — —
207.163.64.0/19 8.2K
0.0%
Alameda County Office of Education US — —
207.163.192.0/19 8.2K
6.1%
Alameda County Office of Education US California Union City
207.163.240.0/20 4.1K
12.4%
Alameda County Office of Education US California Union City
209.132.128.0/20 4.1K
12.3%
Alameda County Office of Education US — —
207.163.120.0/21 2.0K
0.0%
Alameda County Office of Education US — —
207.163.232.0/21 2.0K
97.6%
Alameda County Office of Education US — —
207.163.96.0/22 1.0K
0.0%
Alameda County Office of Education US — —
207.163.116.0/22 1.0K
98.7%
Alameda County Office of Education US California Fremont
207.163.224.0/22 1.0K
73.4%
Alameda County Office of Education US — —
209.132.148.0/22 1.0K
72.9%
Alameda County Office of Education US — —
209.132.152.0/22 1.0K
24.5%
Alameda County Office of Education US — —
207.163.106.0/23 512
0.0%
Alameda County Office of Education US — —
207.163.230.0/23 512
48.6%
Alameda County Office of Education US — —
209.132.144.0/23 512
98.2%
Alameda County Office of Education US — —
207.163.108.0/24 256
0.0%
Alameda County Office of Education US — —
207.163.228.0/24 256
0.0%
Alameda County Office of Education US — —
209.132.146.0/24 256
97.7%
Alameda County Office of Education US — —
209.132.156.0/24 256
0.0%
Alameda County Office of Education US — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS6099 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
206.110.198.0/23 37,418 2026-11-10 16:48:27
207.163.200.0/21 32,420 2026-11-10 16:48:27
204.88.192.0/20 26,060 2026-11-10 16:48:27
206.210.224.0/20 25,672 2026-11-10 16:48:27
204.88.208.0/20 25,653 2026-11-10 16:48:27
206.210.240.0/20 25,505 2026-11-10 16:48:27
207.163.3.0/24 25,331 2026-11-10 16:48:27
207.163.128.0/17 25,142 2026-11-10 16:48:27
206.110.128.0/17 25,107 2026-11-10 16:48:27
206.110.0.0/17 25,098 2026-11-10 16:48:27
209.132.144.0/20 25,072 2026-11-10 16:48:27
207.163.0.0/17 25,030 2026-11-10 16:48:27
209.132.128.0/20 24,889 2026-11-10 16:48:27
207.163.80.0/21 15,711 2026-11-10 16:48:27
207.163.0.0/16 14,702 2026-11-10 16:48:27
204.88.192.0/19 14,701 2026-11-10 16:48:27
206.210.224.0/19 14,697 2026-11-10 16:48:27
206.110.0.0/16 14,660 2026-11-10 16:48:27
209.132.128.0/19 14,609 2026-11-10 16:48:27

Frequently Asked Questions

What is AS6099?

AS6099 is an Autonomous System Number assigned to Alameda County Office of Education. 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 AS6099 announce?

AS6099 announces 151.0K IPv4 addresses distributed across 23 routed CIDR prefixes. The network is registered in United States.

Who operates AS6099?

AS6099 is operated by Alameda County Office of Education. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS6099 registered in?

AS6099 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: 2026-11-10 17:09:05 UTC
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