ResearchRouting table, RPKI, IRR & looking glass

AS51191 Core-Backbone GmbH

AS51191 (XIRRA) is registered to Core-Backbone GmbH in DE. It originates 258 prefixes in the global routing table.

8
IPv4 prefixes
250
IPv6 prefixes
7,168
IPv4 addresses
99%
RPKI valid
Registration

Who holds AS51191

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS51191
Handle
XIRRA
Organization
Core-Backbone GmbH
Country
DE
ASPA
4 providers
Routing

What AS51191 announces

Prefixes originated by AS51191 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
8
IPv6 prefixes
250
IPv4 addresses
7,168 (28 /24s)
RPKI valid
256 99%
RPKI invalid
0
RPKI not found
2
ROAs naming AS51191
14
With an IRR route object
252 97%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (8)
91.232.96.0/23130.185.104.0/21185.24.68.0/22185.108.216.0/22185.169.24.0/24185.169.25.0/24195.138.240.0/21195.138.244.0/24
IPv6 (250)
2a01:4a0:2000::/482a01:4a0:2001::/482a01:4a0:2002::/482a06:4b00::/292a06:4b01:3318::/482a06:4b01:3319::/482a06:4b01:331a::/482a06:4b01:331b::/482a06:4b01:331d::/482a06:4b01:331e::/482a06:4b01:331f::/482a06:4b01:3320::/482a06:4b01:3321::/482a06:4b01:3322::/482a06:4b01:3323::/482a06:4b01:3326::/482a06:4b01:3327::/482a06:4b01:3328::/482a06:4b01:3329::/482a06:4b01:332a::/482a06:4b01:332b::/482a06:4b01:332c::/482a06:4b01:332d::/482a06:4b01:332e::/482a06:4b01:332f::/482a06:4b01:3330::/482a06:4b01:3331::/482a06:4b01:3332::/482a06:4b01:3333::/482a06:4b01:3335::/482a06:4b01:3336::/482a06:4b01:3337::/482a06:4b01:3338::/482a06:4b01:3339::/482a06:4b01:333a::/482a06:4b01:333b::/482a06:4b01:333c::/482a06:4b01:333d::/482a06:4b01:333e::/482a06:4b01:333f::/482a06:4b01:3341::/482a06:4b01:3342::/482a06:4b01:3344::/482a06:4b01:3345::/482a06:4b01:3346::/482a06:4b01:3347::/482a06:4b01:3349::/482a06:4b01:334a::/482a06:4b01:334c::/482a06:4b01:334e::/482a06:4b01:334f::/482a06:4b01:3351::/482a06:4b01:3352::/482a06:4b01:3353::/482a06:4b01:3354::/482a06:4b01:3355::/482a06:4b01:3356::/482a06:4b01:3358::/482a06:4b01:3359::/482a06:4b01:335a::/482a06:4b01:335b::/482a06:4b01:335c::/482a06:4b01:335d::/482a06:4b01:335e::/482a06:4b01:335f::/482a06:4b01:3361::/482a06:4b01:3362::/482a06:4b01:3363::/482a06:4b01:3364::/482a06:4b01:3365::/482a06:4b01:3366::/482a06:4b01:3367::/482a06:4b01:3368::/482a06:4b01:3369::/482a06:4b01:336a::/482a06:4b01:336b::/482a06:4b01:336d::/482a06:4b01:336e::/482a06:4b01:336f::/482a06:4b01:3377::/482a06:4b01:3378::/482a06:4b01:3380::/482a06:4b01:33c0::/482a06:4b01:33c5::/482a06:4b01:33e0::/482a06:4b01:33e2::/482a06:4b01:33e5::/482a06:4b01:33e6::/482a06:4b01:33e7::/482a06:4b01:33e8::/482a06:4b01:33ea::/482a06:4b01:33ec::/482a06:4b01:33f0::/482a06:4b01:33f2::/482a06:4b01:33f3::/482a06:4b01:33f8::/482a06:4b01:33f9::/482a06:4b01:33fa::/482a06:4b01:33fb::/482a06:4b01:33fc::/482a06:4b01:33fd::/482a06:4b01:33fe::/482a06:4b01:33ff::/482a06:4b01:3400::/482a06:4b01:3404::/482a06:4b01:3405::/482a06:4b01:340c::/482a06:4b01:3431::/482a06:4b01:3432::/482a06:4b01:3433::/482a06:4b01:3435::/482a06:4b01:3436::/482a06:4b01:3437::/482a06:4b01:3438::/482a06:4b01:3439::/482a06:4b01:343a::/482a06:4b01:343b::/482a06:4b01:343c::/482a06:4b01:344e::/482a06:4b01:344f::/48
Show 130 more
2a06:4b01:3451::/482a06:4b01:3452::/482a06:4b01:3453::/482a06:4b01:3454::/482a06:4b01:3455::/482a06:4b01:345a::/482a06:4b01:345b::/482a06:4b01:3477::/482a06:4b01:34e2::/482a06:4b01:34e7::/482a06:4b01:34ea::/482a06:4b01:34ec::/482a06:4b01:34f0::/482a06:4b01:34f2::/482a06:4b01:34f3::/482a06:4b01:34f9::/482a06:4b01:3518::/482a06:4b01:3519::/482a06:4b01:351a::/482a06:4b01:351b::/482a06:4b01:351d::/482a06:4b01:351e::/482a06:4b01:351f::/482a06:4b01:3520::/482a06:4b01:3521::/482a06:4b01:3522::/482a06:4b01:3523::/482a06:4b01:3526::/482a06:4b01:3527::/482a06:4b01:3528::/482a06:4b01:3529::/482a06:4b01:352a::/482a06:4b01:352b::/482a06:4b01:352c::/482a06:4b01:352d::/482a06:4b01:352e::/482a06:4b01:352f::/482a06:4b01:3530::/482a06:4b01:3531::/482a06:4b01:3532::/482a06:4b01:3533::/482a06:4b01:3535::/482a06:4b01:3536::/482a06:4b01:3537::/482a06:4b01:3538::/482a06:4b01:3539::/482a06:4b01:353a::/482a06:4b01:353b::/482a06:4b01:353c::/482a06:4b01:353d::/482a06:4b01:353e::/482a06:4b01:353f::/482a06:4b01:3541::/482a06:4b01:3542::/482a06:4b01:3544::/482a06:4b01:3545::/482a06:4b01:3546::/482a06:4b01:3547::/482a06:4b01:3549::/482a06:4b01:354a::/482a06:4b01:354c::/482a06:4b01:354e::/482a06:4b01:354f::/482a06:4b01:3551::/482a06:4b01:3552::/482a06:4b01:3553::/482a06:4b01:3554::/482a06:4b01:3555::/482a06:4b01:3556::/482a06:4b01:3558::/482a06:4b01:3559::/482a06:4b01:355a::/482a06:4b01:355b::/482a06:4b01:355c::/482a06:4b01:355d::/482a06:4b01:355e::/482a06:4b01:355f::/482a06:4b01:3561::/482a06:4b01:3562::/482a06:4b01:3563::/482a06:4b01:3564::/482a06:4b01:3565::/482a06:4b01:3566::/482a06:4b01:3567::/482a06:4b01:3568::/482a06:4b01:3569::/482a06:4b01:356a::/482a06:4b01:356b::/482a06:4b01:356d::/482a06:4b01:356e::/482a06:4b01:356f::/482a06:4b01:3570::/482a06:4b01:3571::/482a06:4b01:3572::/482a06:4b01:3573::/482a06:4b01:3574::/482a06:4b01:3575::/482a06:4b01:3576::/482a06:4b01:3577::/482a06:4b01:3578::/482a06:4b01:3579::/482a06:4b01:357a::/482a06:4b01:3580::/482a06:4b01:35c0::/482a06:4b01:35c5::/482a06:4b01:35e0::/482a06:4b01:35e2::/482a06:4b01:35e4::/482a06:4b01:35e5::/482a06:4b01:35e6::/482a06:4b01:35e7::/482a06:4b01:35e8::/482a06:4b01:35ea::/482a06:4b01:35ec::/482a06:4b01:35f0::/482a06:4b01:35f1::/482a06:4b01:35f2::/482a06:4b01:35f3::/482a06:4b01:35f4::/482a06:4b01:35f5::/482a06:4b01:35f6::/482a06:4b01:35f7::/482a06:4b01:35f8::/482a06:4b01:35f9::/482a06:4b01:35fa::/482a06:4b01:35fb::/482a06:4b01:35fc::/482a06:4b01:35fd::/482a06:4b01:35fe::/482a06:4b01:35ff::/48

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS51191 is reached through

The AS just before AS51191 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS199524 GCORE 25AS60068 CDN77 24AS20473 AS-VULTR 8AS33891 CORE-BACKBONE 3
ASPA

Provider authorization

AS51191 publishes an ASPA naming these providers. Check a path.

AS20473 AS-VULTRAS33891 CORE-BACKBONEAS60068 CDN77AS199524 GCORE
IRR

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RIPEXIRRARIPE-NCC-END-MNT, CORE-BACKBONE

Route objects with origin AS51191: RIPE 785 · RADB 1

as-sets that list AS51191 (7)
AS-CDN77AS-CORE-BACKBONE:AS-EXCEPTIONSAS-HURRICANEV6AS-QTEL-TRANSIT-SETAS-XIRRAAS20473:AS-VULTRAS7545:AS-TPGN-CUSTOMERS
Tools

Check AS51191 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup