Network · data from 2026-11-12
AS16503 ZAYO-16503 - Zayo Bandwidth
Registry name: ZAYO-16503 - Zayo Bandwidth, US · not in PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS16503, things to look at first. Visibility = full-table peers that see it, of 673 (IPv4) and 636 (IPv6) on 75 collectors. Also as routes.csv.
| 64.124.127.0/24 | Valid | None | 673 100% |
| 64.20.96.0/19 | Valid | Other IRR onlyRADB | 673 100% |
| 66.45.192.0/19 | Valid | Other IRR onlyRADB | 673 100% |
| 216.178.48.0/20 | Valid | Other IRR onlyRADB | 673 100% |
AS-SET
AS16503 isn't in PeeringDB, where networks name their AS-SET.
Fix list
The changes that would bring RPKI, the IRR and what's announced into line. Some are deliberate (a route object kept for a backup route, say); the network decides. All 18 are in fix.csv.
- Route object: none1
- Route object: RIR3
- Route object: not announced14
| Change | Prefix or set | Detail |
|---|---|---|
| Route object: none | 64.124.127.0/24 | No route object for it. Add a route object with origin AS16503 in the RIR database for the space. |
| Route object: RIR | 64.20.96.0/19 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 66.45.192.0/19 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 216.178.48.0/20 | Route object only in RADB. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS16503 whose prefix no peer sees AS16503 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 67.105.128.0/24 | RADB | No ROA |
| 198.1.32.0/24 | RADB | No ROA |
| 198.1.33.0/24 | RADB | No ROA |
| 198.1.34.0/24 | RADB | No ROA |
| 198.1.35.0/24 | RADB | No ROA |
| 198.1.36.0/22 | RADB | No ROA |
| 198.1.40.0/21 | RADB | No ROA |
| 198.1.48.0/22 | RADB | No ROA |
| 206.82.170.0/23 | RADB | No ROA |
| 206.191.158.0/24 | RADB | No ROA |
| 208.39.20.0/22 | RADB | No ROA |
| 208.39.20.0/23 | RADB | No ROA |
| 208.39.52.0/22 | RADB | No ROA |
| 216.178.140.0/22 | RADB | No ROA |
Routes: the 08:00 UTC snapshots of 2026-11-12 from 75 RIPE RIS and RouteViews collectors. RPKI: our rpki-client run before the snapshot. IRR: the day's dumps of the five RIR databases and RADB's mirrors. The LEVEL3 and IDNIC databases publish no dump and aren't read, so route objects only there count as none.