Network · data from 2026-11-12
AS18615 Mainstream Fiber Networks
Registry name: MAINSTREAM-FIBER - Mainstream Fiber Networks, LLC, US · PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS18615, 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.
| 38.2.0.0/19 | No ROA | Other IRR onlyRADB | 673 100% |
| 38.194.0.0/18 | No ROA | Other IRR onlyRADB | 673 100% |
| 23.252.0.0/20 | Valid | RIR databaseARIN, RADB | 673 100% |
| 74.116.20.0/22 | Valid | RIR databaseARIN, RADB | 673 100% |
| 147.160.8.0/21 | Valid | RIR databaseARIN, RADB | 673 100% |
| 149.20.248.0/21 | Valid | RIR databaseARIN, RADB | 673 100% |
| 163.182.176.0/20 | Valid | RIR databaseARIN, RADB | 673 100% |
| 206.126.242.0/23 | Valid | RIR databaseARIN, RADB | 673 100% |
| 2607:1c80::/32 | Valid | RIR databaseARIN, RADB | 634 100% |
AS-SET
PeeringDB's irr_as_set for AS18615: ARIN::AS18615:AS-ALL. Expanded from the day's IRR dumps the way bgpq4 does against whois.radb.net: a name with a database is read from that database only, one without from the first database in RADB's order. "Not covered" = this network's own routes that a filter built from the set would leave out (AS18615 isn't in the set, or no route object for AS18615 covers the route; more-specifics of a route object are accepted down to /24 and /48, as with bgpq4 -A -R 24 / -R 48). Customers' routes aren't counted: the collectors show each route's origin, not which network it came through.
| Name | Database | ASNs | Sets | AS18615 in it | Not covered |
|---|---|---|---|---|---|
| ARIN::AS18615:AS-ALL | ARIN | 3 | 2 | Yes | 0 |
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 4 are in fix.csv.
- ROA: none2
- Route object: RIR2
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 38.2.0.0/19 | No ROA covers it. Add a ROA for AS18615, maxLength 19. |
| Route object: RIR | 38.2.0.0/19 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 38.194.0.0/18 | No ROA covers it. Add a ROA for AS18615, maxLength 18. |
| Route object: RIR | 38.194.0.0/18 | Route object only in RADB. Add it in the RIR database for the space. |
Route objects not announced
Every route object with origin AS18615 is announced.
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.