asn.dev

Routing security

AS17035 NBCUNI-17035

Unclassified ARIN

RPKI valid 44% 17 of 39 announcements
RPKI invalid 0 none
No ROA 22 not covered by any ROA
IRR registered 64% 14 missing · 0 other origin
ROAs 23 authorising this AS

Announcements

What this network originates

39 observed

Every prefix observed with AS17035 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
8.11.200.0/24No ROANo IRR53
70.39.48.0/24No ROANo IRR52
70.39.49.0/24No ROANo IRR38
204.237.248.0/23No ROANo IRR52
209.116.149.0/24No ROANo IRR52
216.4.176.0/22No ROANo IRR52
216.4.176.0/23No ROANo IRR52
216.4.178.0/23No ROANo IRR52
70.39.32.0/24No ROAIRR52
70.39.33.0/24No ROAIRR51
70.39.44.0/24No ROAIRR53
70.39.45.0/24No ROAIRR53
70.39.46.0/24No ROAIRR52
70.39.47.0/24No ROAIRR52
70.39.58.0/24No ROAIRR52
70.39.59.0/24No ROAIRR52
70.39.61.0/24No ROAIRR50
70.39.62.0/24No ROAIRR51
173.213.208.0/24No ROAIRR53
192.251.69.0/24No ROAIRR51
216.178.96.0/21No ROAIRR covering52
216.178.104.0/21No ROAIRR covering53
50.175.130.0/24RPKI validNo IRR52
50.220.223.0/24RPKI validNo IRR51
50.221.27.0/24RPKI validNo IRR51
50.225.179.0/24RPKI validNo IRR52
50.229.129.0/24RPKI validNo IRR53
50.230.144.0/20RPKI validNo IRR52
50.149.85.0/24RPKI validIRR51
50.172.163.0/24RPKI validIRR51
50.200.194.0/24RPKI validIRR53
50.207.32.0/21RPKI validIRR52
50.218.3.0/24RPKI validIRR51
50.218.20.0/24RPKI validIRR53
50.218.36.0/24RPKI validIRR53
50.221.162.0/23RPKI validIRR53
50.227.232.0/24RPKI validIRR51
50.228.144.0/20RPKI validIRR52
209.23.192.0/22RPKI validIRR53

RPKI · ROAs

Route origin authorisations

23 ROAs

Signed statements by address holders that AS17035 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
50.149.85.0/24/24ARIN
50.152.224.32/28/28ARIN
50.172.163.0/24/24ARIN
50.175.130.0/24/24ARIN
50.200.194.0/24/24ARIN
50.207.32.0/21/21ARIN
50.218.3.0/24/24ARIN
50.218.20.0/24/24ARIN
50.218.36.0/24/24ARIN
50.220.223.0/24/24ARIN
50.221.2.0/24/24ARIN
50.221.27.0/24/24ARIN
50.221.162.0/23/23ARIN
50.221.162.0/24/24ARIN
50.221.163.0/24/24ARIN
50.225.179.0/24/24ARIN
50.227.232.0/24/24ARIN
50.228.144.0/20/20ARIN
50.228.149.0/24/24ARIN
50.229.129.0/24/24ARIN
50.230.144.0/20/20ARIN
209.23.192.0/22/22ARIN
2001:668:120::/48/48RIPENCC

ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.

RPKI · ASPA

Declared transit providers

No ASPA record This network has not published an ASPA object. ASPA lets a network sign the list of its transit providers, so routers can reject paths that route through anyone else (route leaks). Only a few thousand networks publish one so far, so its absence is normal.

IRR

Registered route objects

31 objects · 7 not announced

Route objects naming AS17035 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.

PrefixSourceDescriptionMaintainerChangedRouting
50.221.2.0/24RADBNBCUniversal, Inc.MAINT-AS275062023-11-13Not announced
50.228.149.0/24ARINComcast Cable Communications, LLCMNT-CCCS2025-07-09Not announced
63.73.169.0/24RADBPNAP-NYCMAINT-AS18282023-11-13Not announced
70.39.57.0/24ARINNBCUniversal-Secaucus DMZMNT-NBCUN-32026-08-11Not announced
192.251.68.0/24RADBComcast Cable Communications, IncMAINT-AS79222023-11-13Not announced
198.55.26.0/23ARINOne Blachley RoadMNT-NSN-142026-01-21Not announced
216.178.96.0/20RADBComcast Cable Communications, Inc.MAINT-AS79222023-11-13Not announced
50.149.85.0/24ARINComcast Cable Communications, LLCMNT-CCCS2025-06-16Announced
50.149.85.0/24RADBNBCUniversal Media, LLCMAINT-AS275062026-01-21Announced
50.172.163.0/24NTTCOMNET-50-172-163-0-1MAINT-PSLIGHTWAVE2023-01-04Announced
50.200.194.0/24RADBComcast Cable Communications, Inc.MAINT-AS79222023-11-13Announced
50.207.32.0/21ARINComcast Cable Communications, LLCMNT-CCCS2025-08-14Announced
50.218.3.0/24RADBNBC UniveralMAINT-AS275062023-11-13Announced
50.218.20.0/24RADBNBCUniversalMAINT-AS275062025-09-03Announced
50.218.36.0/24RADBComcast Cable Communications, IncMAINT-AS79222024-03-29Announced
50.221.162.0/23RADBComcast Cable Communications, Inc.MAINT-AS79222023-11-13Announced
50.227.232.0/24RADBNBCUniversal, Inc.MAINT-AS275062023-11-13Announced
50.228.144.0/20ARINComcast Cable Communications, LLCMNT-CCCS2025-07-09Announced
70.39.32.0/24ARINEMEA-UK-Woking DCMNT-NBCUN-32026-09-10Announced
70.39.33.0/24ARINEMEA - UK - Telehouse DCMNT-NBCUN-32026-09-29Announced
70.39.44.0/24RADBNBCUniversal, Inc.MAINT-AS275062025-03-27Announced
70.39.45.0/24RADBNBCUniversal, Inc.MAINT-AS275062025-03-27Announced
70.39.46.0/24RADBNBCUniversal, Inc.MAINT-AS275062025-03-27Announced
70.39.47.0/24RADBNBCUniversal, Inc.MAINT-AS275062025-03-27Announced
70.39.58.0/24RADBComcast Cable Communications, Inc.MAINT-AS79222023-11-13Announced
70.39.59.0/24RADBComcast Cable Communications, Inc.MAINT-AS79222023-11-13Announced
70.39.61.0/24ARINUK-Woking_CGX-Internet-AMNT-NBCUN-32026-05-22Announced
70.39.62.0/24ARINUK-Woking_CGX-Internet-BMNT-NBCUN-32026-05-21Announced
173.213.208.0/24RADBNBCUniversal, Inc.MAINT-AS275062023-11-13Announced
192.251.69.0/24RADBComcast Cable Communications, Inc.MAINT-AS79222023-11-13Announced
209.23.192.0/22RADBComcast Cable Communications, Inc.MAINT-AS79222023-11-13Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS17035 directly show who expects to carry it.

AS-setWhereRelationship
AS-CCFRADBLists AS17035 as a direct member
AS-CCF-TESTRADBLists AS17035 as a direct member
AS-COMCAST-EDIARADBLists AS17035 as a direct member
AS-COMCAST-IBONERADBLists AS17035 as a direct member
AS-GTTCUSTRIPELists AS17035 as a direct member
AS-GTTCUST6RIPELists AS17035 as a direct member
AS-MFNXRIPELists AS17035 as a direct member
AS-PSLIGHTWAVENTTCOMLists AS17035 as a direct member
AS394437:AS-PSLIGHTWAVE-L3NTTCOMLists AS17035 as a direct member
AS394437:AS-TESTINGNTTCOMLists AS17035 as a direct member
AS6128:AS-CUSTOMERSARINLists AS17035 as a direct member
AS8220:AS-COLTUKRIPELists AS17035 as a direct member

RPKI from rpki-client, validated 2026-10-19 12:02 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-19. Cross-check on bgp.he.net.