Network · data from 2026-11-12
AS52888 UFSCar - Universidade Federal de São Carlos
Registry name: AS52888 - UNIVERSIDADE FEDERAL DE SAO CARLOS, BR · PeeringDB
28IPv4 routes
100.0% RPKI valid · 42.9% with a route object
6IPv6 routes
100.0% RPKI valid · 66.7% with a route object
0RPKI invalid
0 origin · 0 maxLength
0No ROA
18 with no route object for this origin
0Low visibility
seen by under 10% of full-table peers
2Route objects not announced
registered with origin AS52888, seen from no peer
Announced routes
Every prefix a peer of the route collectors sees with origin AS52888, 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.
| 186.219.92.0/22 | Valid | Nonecovered by 186.219.80.0/20 | 672 100% |
| 200.18.103.0/24 | Valid | Nonecovered by 200.18.96.0/21 | 671 100% |
| 200.136.248.0/22 | Valid | Nonecovered by 200.136.192.0/18 | 671 100% |
| 186.219.88.0/22 | Valid | Nonecovered by 186.219.80.0/20 | 669 99% |
| 200.136.190.0/24 | Valid | Nonecovered by 200.136.190.0/23 | 668 99% |
| 200.136.191.0/24 | Valid | Nonecovered by 200.136.190.0/23 | 668 99% |
| 2801:b0::/33 | Valid | Nonecovered by 2801:b0::/32 | 635 100% |
| 2801:b0:8000::/33 | Valid | Nonecovered by 2801:b0::/32 | 635 100% |
| 200.18.96.0/22 | Valid | Nonecovered by 200.18.96.0/21 | 147 22% |
| 200.18.100.0/22 | Valid | Nonecovered by 200.18.96.0/21 | 147 22% |
| 200.136.192.0/19 | Valid | Nonecovered by 200.136.192.0/18 | 147 22% |
| 200.136.224.0/19 | Valid | Nonecovered by 200.136.192.0/18 | 147 22% |
| 186.219.80.0/21 | Valid | Nonecovered by 186.219.80.0/20 | 146 22% |
| 186.219.88.0/21 | Valid | Nonecovered by 186.219.80.0/20 | 146 22% |
| 200.133.224.0/21 | Valid | Nonecovered by 200.133.224.0/20 | 146 22% |
| 200.18.104.0/24 | Valid | Nonecovered by 200.18.104.0/23 | 145 22% |
| 200.18.105.0/24 | Valid | Nonecovered by 200.18.104.0/23 | 145 22% |
| 200.133.232.0/21 | Valid | Nonecovered by 200.133.224.0/20 | 145 22% |
| 186.219.80.0/20 | Valid | Other IRR onlyRADB, TC | 672 100% |
| 200.18.96.0/21 | Valid | Other IRR onlyRADB | 671 100% |
| 200.18.96.0/24 | Valid | Other IRR onlyRADB | 671 100% |
| 200.18.104.0/23 | Valid | Other IRR onlyRADB | 671 100% |
| 200.133.224.0/20 | Valid | Other IRR onlyRADB, TC | 671 100% |
| 200.133.236.0/23 | Valid | Other IRR onlyTC | 671 100% |
| 200.136.189.0/24 | Valid | Other IRR onlyRADB | 671 100% |
| 200.136.192.0/18 | Valid | Other IRR onlyRADB | 671 100% |
| 200.9.84.0/24 | Valid | Other IRR onlyRADB, TC | 668 99% |
| 200.18.102.0/24 | Valid | Other IRR onlyRADB | 668 99% |
| 200.133.238.0/23 | Valid | Other IRR onlyTC | 668 99% |
| 200.136.190.0/23 | Valid | Other IRR onlyRADB | 668 99% |
| 2801:b0::/32 | Valid | Other IRR onlyRADB, TC | 635 100% |
| 2801:b0:b0::/46 | Valid | Other IRR onlyTC | 635 100% |
| 2801:b0:c0::/46 | Valid | Other IRR onlyTC | 635 100% |
| 2801:b0:d0::/46 | Valid | Other IRR onlyTC | 635 100% |
AS-SET
PeeringDB's irr_as_set for AS52888: AS52888. 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 (AS52888 isn't in the set, or no route object for AS52888 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 | AS52888 in it | Not covered | |
|---|---|---|---|---|---|---|
| AS52888 | A single AS number, not a set: AS52888 (this network), 18 route objects. | |||||
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 36 are in fix.csv.
- Route object: none18
- Route object: RIR16
- Route object: not announced2
| Change | Prefix or set | Detail |
|---|---|---|
| Route object: none | 186.219.92.0/22 | No route object for it. A route object for 186.219.80.0/20 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.18.103.0/24 | No route object for it. A route object for 200.18.96.0/21 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.136.248.0/22 | No route object for it. A route object for 200.136.192.0/18 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 186.219.88.0/22 | No route object for it. A route object for 186.219.80.0/20 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.136.190.0/24 | No route object for it. A route object for 200.136.190.0/23 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.136.191.0/24 | No route object for it. A route object for 200.136.190.0/23 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 2801:b0::/33 | No route object for it. A route object for 2801:b0::/32 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 2801:b0:8000::/33 | No route object for it. A route object for 2801:b0::/32 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.18.96.0/22 | No route object for it. A route object for 200.18.96.0/21 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.18.100.0/22 | No route object for it. A route object for 200.18.96.0/21 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.136.192.0/19 | No route object for it. A route object for 200.136.192.0/18 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.136.224.0/19 | No route object for it. A route object for 200.136.192.0/18 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 186.219.80.0/21 | No route object for it. A route object for 186.219.80.0/20 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 186.219.88.0/21 | No route object for it. A route object for 186.219.80.0/20 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.133.224.0/21 | No route object for it. A route object for 200.133.224.0/20 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.18.104.0/24 | No route object for it. A route object for 200.18.104.0/23 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.18.105.0/24 | No route object for it. A route object for 200.18.104.0/23 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: none | 200.133.232.0/21 | No route object for it. A route object for 200.133.224.0/20 with origin AS52888 covers it (filters allowing more-specifics accept it). Add a route object with origin AS52888 in the RIR database for the space. |
| Route object: RIR | 186.219.80.0/20 | Route object only in RADB, TC. Add it in the RIR database for the space. |
| Route object: RIR | 200.18.96.0/21 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 200.18.96.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 200.18.104.0/23 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 200.133.224.0/20 | Route object only in RADB, TC. Add it in the RIR database for the space. |
| Route object: RIR | 200.133.236.0/23 | Route object only in TC. Add it in the RIR database for the space. |
| Route object: RIR | 200.136.189.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 200.136.192.0/18 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 200.9.84.0/24 | Route object only in RADB, TC. Add it in the RIR database for the space. |
| Route object: RIR | 200.18.102.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 200.133.238.0/23 | Route object only in TC. Add it in the RIR database for the space. |
| Route object: RIR | 200.136.190.0/23 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 2801:b0::/32 | Route object only in RADB, TC. Add it in the RIR database for the space. |
| Route object: RIR | 2801:b0:b0::/46 | Route object only in TC. Add it in the RIR database for the space. |
| Route object: RIR | 2801:b0:c0::/46 | Route object only in TC. Add it in the RIR database for the space. |
| Route object: RIR | 2801:b0:d0::/46 | Route object only in TC. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS52888 whose prefix no peer sees AS52888 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 200.18.100.0/23 | RADB | Valid |
| 200.19.230.0/23 | 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.