Border Gateway Protocol (BGP) was never designed to be a searchable database or a tidy audit log. It’s a living conversation—messy, distributed, and refreshingly stateless.

ASN Monitor listens to that conversation 24×7 and turns yesterday’s fleeting updates into today’s actionable insight. Below is a tour of the seven workspaces that make it happen, using AS 52863 (UPX) for illustration.

1 · Main – “Am I healthy?”

Think of Main as your NOC-side dashboard:

Main is your at-a-glance health check for any ASN. It combines dashboards with 30-day histories for upstreams, downstreams, and peers so you can spot trend lines, drift, and anomalies in seconds. The AS Path chart shows how traffic actually reaches your ASN, highlighting connectivity to Tier-1 networks. Beneath the path, compact time-series charts track IPv4/IPv6 peer counts and prefixes (announced vs. originated), making growth, withdrawals, and maintenance effects immediately visible. 

A Recent & Critical Events panel keeps urgent issues front-and-center with one-click links to the full event log and path impact.

2 · Events – “Show me what changed, and when”

Events filters the firehose:

Events is your forensic logbook for BGP. A stacked timeline surfaces the busiest hours and most severe incidents—click anywhere to filter the table to that window. Quick toggles narrow by severity and category to find hijack, withdrawal, announcement, RPKI/IRR and  Upstream/Downstream changes, and free-text search finds the exact incident you need.

Every row opens a detailed view with the affected prefix/AS, RPKI state at that moment, a before/after AS-Path diff and other related metadata. It’s an always-on audit trail.

3 · Paths – “How attractive are my routes?”

BGP attraction is visual, so Paths is, too:

Paths turn observed AS-paths into a clean, directional map of route attraction. Tier-1s and major transits sit on the left, your origin AS on the right; Use the prefix filter to flip between “all prefixes” and a single /24 or /48—imbalances and asymmetries jump out immediately. Hover to highlight each node and its interconnectivities, then pivot to Announces for the full path list. In practice, this view answers three questions fast: who actually brings me traffic, how balanced my upstreams are, and whether a change shifted attraction toward the wrong provider.

4 · Announces – “Let’s open the hood”

Where Paths shows the forest, Announces lets you inspect every tree:

Announces is your per-prefix truth table. It lists every originating network and shows, across observed upstreams, how much of the path share each one carries. Use the prefix and v4/v6 filters to narrow the view. Click on the gauge to open the AS-Path Inspector and see all observed paths for that prefix—handy for quick verification or copy-out. 

Below the table, upstreams, downstreams, and peers are broken out with path counts and a compact treemap so you can gauge distribution at a glance. It’s the place to confirm propagation, spot imbalances, and trace exactly how a given route is being carried.

5 · Resources – “Is my paperwork in order?”

Your prefixes are only as good as their paperwork:

Resources audits the control-plane paperwork behind your prefixes. At the top, a compact summary shows current RPKI and IRR coverage so you can spot gaps quickly. The table below lists each originated prefix with last-seen time and clear status badges: RPKI Valid/Invalid/Not Found and IRR present/missing.

Click any row to open a prefix detail, where you can review the ROA/IRR evidence and see common failure reasons (e.g., wrong origin ASN, maxLength too short, expired ROA, or no object). Filters for IPv4/IPv6 and prefix search keep the view focused. It’s the fastest way to verify that policy artifacts match what you’re actually announcing—and to prioritize what needs fixing next.

6 · ASN Live – “What’s happening this second?”

When you need second-by-second telemetry, switch to ASN Live:

ASN Live streams announcements and withdrawals from multiple collectors in real time. A live grid shows prefixes against collectors; cells light up as updates arrive so you can see propagation (or the lack of it) at a glance.

Use quick filters to focus on a prefix, an upstream AS, or a time window, then pivot to Announces or Events for full context. It’s ideal for maintenance windows and incident response—helping you confirm changes, spot flapping, and catch routes that look “stuck” (announced but not refreshing or withdrawn).

7 · Settings – “My fleet, my rules”

Monitor any AS in the world and control your notification preferences:

Settings is the straightforward place to add or remove the ASNs you monitor and stay within plan limits. It also links to the Notification Center, where you choose which events trigger alerts (e.g., hijacks, visibility changes, new announcements, RPKI/ROA issues, upstream/downstream changes), how alerts are aggregated (real-time, daily, or weekly at a chosen UTC time), and where they’re delivered (Slack, email, or ServiceNow).

The tool that remembers what BGP forgets

ASN Monitor gives operators a reliable memory for an unreliable protocol. It unifies snapshots and real-time views so you can see what changed, why it changed, and how that change propagated—without wading through raw updates.

From Tier-1 attraction and per-prefix paths to IRR/RPKI posture and event forensics, the focus is practical insight you can act on quickly. Configure a few ASNs, set your notifications, and let the platform keep score in the background. BGP will keep forgetting; ASN Monitor won’t.