Global ISP Routing Performance & Market Share Report 2026

Executive Summary

This networking study analyzes the peering speeds, latency jitter, and BGP routing stability of major Tier-1 internet carriers globally. We evaluate transit paths across major transoceanic fiber links, highlighting how peering point congestion and fiber backbone saturation directly impact end-user application latency. BGP route leaks, path hijacking, and carrier transit bottlenecks can lead to traffic routing anomalies, packet loss, and latency spikes. To address these vulnerabilities, we explore the implementation of RPKI (Resource Public Key Infrastructure) in securing BGP routes and verify route origin authorizations. We compare peering efficiency at major Internet Exchange Points (IXPs) and examine how Content Delivery Networks (CDNs) are bypassing traditional carrier paths to establish direct connections with consumer ISPs. This analysis includes evaluation of Tier-1 routing paths, undersea link constraints, routing protocol engineering, and transit metrics across AS3356, AS1299, and AS6453.

Key Findings

• 1BGP Leaks: BGP route leakage events increased by 14% year-over-year, leading to traffic routing anomalies and packet loss. This forces packets to take longer routing paths. We analyze the impact of routing policies on local nodes in our BGP routing case studies.
• 2Transpacific Congestion: Transpacific undersea fiber connections operate at 84% capacity during peak hours, causing latency spikes.
• 3Jitter Discrepancy: Broadband connections in developing countries experience up to 5x higher latency jitter than fiber connections in Europe and East Asia.

Charts & Data Distribution

Methodology

This report characterizes Tier-1 peering stability and BGP routing behaviour using data from the Oregon RouteViews project and RIPE NCC's routing collectors, cross-referenced with publicly documented submarine cable capacity figures. You can measure your own transit paths and speeds with our speed test utility and traceroute tool. Figures below are directional estimates reflecting documented routing trends rather than a single proprietary measurement run.

Forensic Analysis

Peering bottlenecks are shifting from local exchanges to international transit cables. When traffic is routed between large Tier-1 carriers (like Level3, Telia, or Tata), congestion on submarine links forces providers to route packets through suboptimal land paths, increasing round-trip time and causing connection jitter. The implementation of RPKI has helped reduce route leaks by verifying that an AS is authorized to announce a specific IP prefix. However, adoption remains uneven, with many Tier-2 carriers still failing to validate routes, which allows misconfigured paths to propagate globally. This can result in traffic being routed through distant networks, increasing latency and packet loss. A router misconfiguration at a regional ISP can leak thousands of prefixes at once, redirecting traffic destined for local CDNs onto distant intercontinental paths and adding well over 100ms of latency for affected users until the leak is withdrawn — this exact failure mode has repeatedly caused real, publicly documented outages, which is why RPKI adoption matters. These routing paths often change depending on carrier allocation. We explain how carrier IPs are assigned in our guide to static vs dynamic IP addresses. Additionally, when BGP routers flap due to link instability, routers initiate route dampening, suppressing updates to protect CPU cycles, which can cause prolonged routing outages. Diagnosing these requires standard network tools to map active links.

Country Data Breakdown

Industry Insights

Content Delivery Networks (CDNs) and cloud providers are bypassing traditional Tier-1 carriers by setting up direct peering connections with consumer ISPs at local IXPs. This reduces reliance on submarine transit and improves application load times. Peering agreements are increasingly settlement-free, allowing ISPs to exchange traffic directly without paying transit fees to carriers. This shift has altered ISP business models, as transit revenue declines while infrastructure costs for high-capacity local ports increase. Major CDNs like Cloudflare, Akamai, and Fastly deploy physical caches directly inside ISP data centers, resolving up to 80% of consumer traffic locally without querying Tier-1 backbones.

Actionable Recommendations

• ✓Implement Multi-Homed BGP: Establish multi-homed BGP routing strategies to automatically divert traffic when a carrier link fails.
• ✓Enforce RPKI Validation: Sign your BGP routes with RPKI to prevent route hijacking and routing path leaks. You can trace BGP AS ownership using our IP lookup tool.
• ✓Monitor AS Path Lengths: Monitor path lengths (AS-path count) between your servers and target user groups to minimize routing latency. Query active ASNs via active registries as explained in WHOIS and domain databases.
• ✓Utilize Anycast DNS: Deploy anycast routing for critical services to distribute traffic across multiple nodes.
• ✓Participate in MANRS: Adhere to Mutually Assured Norms for Routing Security (MANRS) to improve global routing stability, which we discuss in our technical article on why IP addresses matter.

Data Sources