bgpreport

Network · data from 2026-11-12

AS5723 Johns Hopkins University

Registry name: JHU - Johns Hopkins University, US · PeeringDB

9IPv4 routes 100.0% RPKI valid · 88.9% with a route object
1IPv6 routes 100.0% RPKI valid · 100.0% with a route object
0RPKI invalid 0 origin · 0 maxLength
0No ROA 1 with no route object for this origin
1Low visibility seen by under 10% of full-table peers
1Route objects not announced registered with origin AS5723, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS5723, 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.

128.220.122.0/24 Valid Nonecovered by 128.220.0.0/16 1 0%low visibility 1
128.220.0.0/16 Valid RIR databaseARIN, RADB 671 100% 69
162.129.0.0/16 Valid RIR databaseARIN 671 100% 69
192.12.13.0/24 Valid RIR databaseARIN 671 100% 69
192.12.14.0/24 Valid RIR databaseARIN 671 100% 69
198.57.32.0/21 Valid RIR databaseARIN 671 100% 69
198.57.39.0/24 Valid RIR databaseARIN 671 100% 69
198.57.40.0/22 Valid RIR databaseARIN 671 100% 69
204.124.184.0/22 Valid RIR databaseARIN 671 100% 69
2606:2b00::/32 Valid RIR databaseARIN 634 100% 70

AS-SET

PeeringDB's irr_as_set for AS5723: ARIN::AS5723:AS-5723-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 (AS5723 isn't in the set, or no route object for AS5723 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.

NameDatabaseASNsSets Route objectsAS5723 in itNot covered
ARIN::AS5723:AS-5723-ALL ARIN 2114 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 2 are in fix.csv.

  • Route object: none1
  • Route object: not announced1
ChangePrefix or setDetailFull-table peers
Route object: none128.220.122.0/24No route object for it. A route object for 128.220.0.0/16 with origin AS5723 covers it (filters allowing more-specifics accept it). Add a route object with origin AS5723 in the RIR database for the space.1 of 673

Route objects not announced

Route objects with origin AS5723 whose prefix no peer sees AS5723 announce. Many are kept on purpose (backup routes, space announced only in some places).

2001:470:277::/48ARINValid

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.