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.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Enterprise allocation +4
- Trust score 57 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Yahoo
Yahoo is an American web portal based in Sunnyvale, California. It provides the search engine Yahoo Search and related services including My Yahoo, Yahoo Mail, Yahoo News, Yahoo Finance, Yahoo Sports, y!entertainment, yahoo!life, and its advertising platform, Yahoo Native.
⚠ 2 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS10880 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 68.180.130.0/24 | AS10880, AS198474 | 2026-09-11 15:40:55 |
| 68.180.131.0/24 | AS10880, AS198474 | 2026-09-11 15:40:55 |
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 68.180.130.0/23 | 512 |
87.7%
|
Yahoo Holdings Inc. | US | — | — |
| 202.165.97.0/24 | 256 |
94.5%
|
Yahoo Holdings Inc. | US | — | — |
| 203.84.218.0/24 | 256 |
97.7%
|
Yahoo Holdings Inc. | HK | — | — |
| 203.84.220.0/24 | 256 |
98.8%
|
Yahoo Holdings Inc. | HK | — | — |
| 209.191.95.0/24 | 256 |
57.4%
|
Yahoo Holdings Inc. | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS10880 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 202.165.97.0/24 | 41,776 | 2026-09-12 08:17:30 |
| 203.84.220.0/24 | 40,756 | 2026-09-12 08:17:30 |
| 209.191.95.0/24 | 30,076 | 2026-09-12 06:10:32 |
| 203.84.218.0/24 | 24,474 | 2026-09-12 08:51:25 |
| 68.180.131.0/24 | 15,817 | 2026-09-12 06:43:26 |
| 68.180.130.0/24 | 14,375 | 2026-09-12 06:43:26 |
Frequently Asked Questions
What is AS10880?
AS10880 is an Autonomous System Number assigned to Yahoo Holdings Inc.. 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 AS10880 announce?
AS10880 announces 1.5K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in United States.
Who operates AS10880?
AS10880 is operated by Yahoo Holdings Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS10880 registered in?
AS10880 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
