Routing security

AS12271 TWC-12271-NYC

Residential ARIN

RPKI valid 93% 111 of 119 announcements

RPKI invalid 0 none

No ROA 8 not covered by any ROA

IRR registered 99.2% 1 missing · 0 other origin

ROAs 126 authorising this AS

Announcements

What this network originates

119 observed

Every prefix observed with AS12271 as its origin, checked against RPKI and the IRR. Problems sort first.

Prefix	RPKI	IRR	Vantage points
149.89.0.0/16	No ROA	IRR	54
192.131.40.0/22	No ROA	IRR	54
198.151.199.0/24	No ROA	IRR	54
198.151.200.0/24	No ROA	IRR	54
198.151.201.0/24	No ROA	IRR	54
198.151.202.0/24	No ROA	IRR	54
198.151.203.0/24	No ROA	IRR	54
207.251.238.0/23	No ROA	IRR	54
2603:90be::/32	RPKI valid	No IRR	31
23.246.64.0/18	RPKI valid	IRR	54
24.29.96.0/19	RPKI valid	IRR	54
24.29.128.0/19	RPKI valid	IRR	54
24.30.224.0/20	RPKI valid	IRR	54
24.39.104.0/21	RPKI valid	IRR	54
24.39.112.0/20	RPKI valid	IRR	54
24.39.128.0/19	RPKI valid	IRR	54
24.90.0.0/16	RPKI valid	IRR	54
24.97.123.0/24	RPKI valid	IRR	54
24.97.124.0/22	RPKI valid	IRR	54
24.97.184.0/23	RPKI valid	IRR	54
24.97.200.0/21	RPKI valid	IRR	54
24.102.64.0/18	RPKI valid	IRR	54
24.103.0.0/17	RPKI valid	IRR	54
24.103.224.0/19	RPKI valid	IRR	54
24.104.192.0/18	RPKI valid	IRR	54
24.105.128.0/19	RPKI valid	IRR	54
24.136.96.0/19	RPKI valid	IRR	54
24.161.0.0/17	RPKI valid	IRR	54
24.164.128.0/18	RPKI valid	IRR	54
24.168.0.0/17	RPKI valid	IRR	54
24.168.128.0/19	RPKI valid	IRR	54
24.193.0.0/16	RPKI valid	IRR	54
24.213.160.0/19	RPKI valid	IRR	54
47.230.0.0/16	RPKI valid	IRR	54
50.74.0.0/16	RPKI valid	IRR	54
50.75.192.0/18	RPKI valid	IRR	54
65.86.104.0/21	RPKI valid	IRR	54
66.65.0.0/17	RPKI valid	IRR	54
66.65.128.0/18	RPKI valid	IRR	54
66.93.136.0/21	RPKI valid	IRR	54
66.108.0.0/16	RPKI valid	IRR	54
66.110.97.0/24	RPKI valid	IRR	55
67.243.0.0/16	RPKI valid	IRR	54
67.244.0.0/19	RPKI valid	IRR	54
67.244.64.0/18	RPKI valid	IRR	54
67.245.0.0/16	RPKI valid	IRR	54
67.247.0.0/18	RPKI valid	IRR	54
67.247.96.0/19	RPKI valid	IRR	54
67.250.0.0/16	RPKI valid	IRR	54
67.251.128.0/19	RPKI valid	IRR	54
67.251.192.0/18	RPKI valid	IRR	54
67.254.0.0/16	RPKI valid	IRR	54
68.165.184.0/21	RPKI valid	IRR	54
68.172.208.0/20	RPKI valid	IRR	54
68.172.224.0/19	RPKI valid	IRR	54
68.173.0.0/16	RPKI valid	IRR	54
68.174.0.0/16	RPKI valid	IRR	54
68.175.0.0/17	RPKI valid	IRR	54
69.193.128.0/18	RPKI valid	IRR	54
69.193.192.0/19	RPKI valid	IRR	54
69.193.224.0/19	RPKI valid	IRR	54
69.200.64.0/19	RPKI valid	IRR	54
69.200.224.0/19	RPKI valid	IRR	54
69.200.240.0/21	RPKI valid	IRR covering	54
69.201.128.0/17	RPKI valid	IRR	54
69.202.128.0/17	RPKI valid	IRR	54
69.203.0.0/17	RPKI valid	IRR	54
69.203.128.0/19	RPKI valid	IRR	54
69.203.192.0/18	RPKI valid	IRR	54
69.204.224.0/19	RPKI valid	IRR	54
69.206.0.0/16	RPKI valid	IRR	54
72.43.96.0/19	RPKI valid	IRR	54
72.43.128.0/18	RPKI valid	IRR	54
72.225.64.0/18	RPKI valid	IRR	54
72.225.128.0/17	RPKI valid	IRR	54
72.226.0.0/17	RPKI valid	IRR	54
72.227.128.0/17	RPKI valid	IRR	54
72.229.0.0/16	RPKI valid	IRR	54
72.231.0.0/17	RPKI valid	IRR	54
74.0.136.0/21	RPKI valid	IRR	54
74.64.0.0/16	RPKI valid	IRR	54
74.65.192.0/18	RPKI valid	IRR	54
74.66.0.0/16	RPKI valid	IRR	54
74.68.0.0/16	RPKI valid	IRR	54
74.71.0.0/16	RPKI valid	IRR	54
74.72.0.0/15	RPKI valid	IRR	54
76.58.52.0/23	RPKI valid	IRR	54
98.0.128.0/17	RPKI valid	IRR	54
98.7.0.0/17	RPKI valid	IRR	54
98.7.192.0/18	RPKI valid	IRR	54
98.12.0.0/16	RPKI valid	IRR	54
98.13.128.0/17	RPKI valid	IRR	54
98.14.0.0/15	RPKI valid	IRR	54
108.176.0.0/18	RPKI valid	IRR	54
108.176.128.0/18	RPKI valid	IRR	54
142.105.0.0/17	RPKI valid	IRR	54
142.255.0.0/17	RPKI valid	IRR	54
150.221.96.0/19	RPKI valid	IRR	54
150.224.177.0/24	RPKI valid	IRR	54
158.222.128.0/17	RPKI valid	IRR	54

RPKI · ROAs

Route origin authorisations

126 ROAs

Signed statements by address holders that AS12271 may originate these prefixes, up to the maximum length shown.

Prefix	Max length	Trust anchor
23.246.64.0/18	/18	ARIN
24.26.74.0/23	/23	ARIN
24.26.76.0/23	/23	ARIN
24.29.96.0/19	/19	ARIN
24.29.128.0/19	/19	ARIN
24.30.224.0/20	/20	ARIN
24.39.104.0/21	/21	ARIN
24.39.112.0/20	/20	ARIN
24.39.128.0/19	/19	ARIN
24.39.153.0/24	/24	ARIN
24.39.158.0/24	/24	ARIN
24.39.159.0/24	/24	ARIN
24.90.0.0/16	/16	ARIN
24.97.123.0/24	/24	ARIN
24.97.124.0/22	/22	ARIN
24.97.184.0/23	/23	ARIN
24.97.200.0/21	/21	ARIN
24.102.64.0/18	/18	ARIN
24.103.0.0/17	/17	ARIN
24.103.224.0/19	/19	ARIN
24.104.192.0/18	/18	ARIN
24.105.128.0/19	/19	ARIN
24.136.96.0/19	/19	ARIN
24.161.0.0/17	/17	ARIN
24.164.128.0/18	/18	ARIN
24.168.0.0/17	/17	ARIN
24.168.128.0/19	/19	ARIN
24.193.0.0/16	/16	ARIN
24.213.160.0/19	/19	ARIN
45.39.52.0/24	/24	ARIN
45.39.171.0/24	/24	ARIN
45.39.178.0/24	/24	ARIN
45.39.239.0/24	/24	ARIN
47.230.0.0/16	/16	ARIN
50.74.0.0/16	/16	ARIN
50.75.192.0/18	/18	ARIN
65.86.104.0/21	/24	ARIN
66.65.0.0/17	/17	ARIN
66.65.128.0/18	/18	ARIN
66.93.136.0/21	/24	ARIN
66.108.0.0/16	/16	ARIN
66.110.97.0/24	/24	ARIN
67.243.0.0/16	/16	ARIN
67.244.0.0/19	/19	ARIN
67.244.64.0/18	/18	ARIN
67.245.0.0/16	/16	ARIN
67.247.0.0/18	/18	ARIN
67.247.96.0/19	/19	ARIN
67.250.0.0/16	/16	ARIN
67.251.128.0/19	/19	ARIN
67.251.192.0/18	/18	ARIN
67.254.0.0/16	/16	ARIN
68.165.184.0/21	/24	ARIN
68.172.208.0/20	/20	ARIN
68.172.224.0/19	/19	ARIN
68.173.0.0/16	/16	ARIN
68.174.0.0/16	/16	ARIN
68.175.0.0/17	/17	ARIN
69.193.128.0/17	/17	ARIN
69.193.128.0/18	/18	ARIN
69.193.192.0/19	/19	ARIN
69.193.224.0/19	/19	ARIN
69.200.64.0/19	/19	ARIN
69.200.224.0/19	/19	ARIN
69.200.240.0/21	/21	ARIN
69.201.128.0/17	/17	ARIN
69.202.128.0/17	/17	ARIN
69.203.0.0/17	/17	ARIN
69.203.128.0/19	/19	ARIN
69.203.192.0/18	/18	ARIN
69.204.224.0/19	/19	ARIN
69.206.0.0/16	/16	ARIN
72.43.96.0/19	/19	ARIN
72.43.128.0/18	/18	ARIN
72.225.64.0/18	/18	ARIN
72.225.128.0/17	/17	ARIN
72.226.0.0/17	/17	ARIN
72.227.128.0/17	/17	ARIN
72.229.0.0/16	/16	ARIN
72.231.0.0/17	/17	ARIN
74.0.136.0/21	/24	ARIN
74.64.0.0/16	/16	ARIN
74.65.192.0/18	/18	ARIN
74.66.0.0/16	/16	ARIN
74.68.0.0/16	/16	ARIN
74.68.0.0/18	/18	ARIN
74.71.0.0/16	/16	ARIN
74.72.0.0/15	/15	ARIN
76.58.52.0/23	/23	ARIN
98.0.128.0/17	/17	ARIN
98.0.134.0/23	/23	ARIN
98.7.0.0/17	/17	ARIN
98.7.192.0/18	/18	ARIN
98.12.0.0/16	/16	ARIN
98.13.128.0/17	/17	ARIN
98.14.0.0/15	/15	ARIN
107.14.192.0/20	/20	ARIN
108.176.0.0/18	/18	ARIN
108.176.128.0/18	/18	ARIN
142.105.0.0/17	/17	ARIN
142.252.154.0/24	/24	ARIN
142.255.0.0/17	/17	ARIN
150.221.96.0/19	/19	ARIN
150.224.177.0/24	/24	ARIN
158.222.128.0/17	/17	ARIN
168.148.128.0/19	/19	ARIN
172.254.0.0/16	/16	ARIN
184.74.128.0/17	/17	ARIN
184.75.0.0/17	/17	ARIN
184.152.0.0/16	/16	ARIN
184.153.0.0/17	/17	ARIN
192.61.128.0/19	/19	ARIN
198.179.64.0/19	/19	ARIN
204.210.128.0/19	/19	ARIN
208.105.0.0/18	/18	ARIN
208.105.64.0/19	/19	ARIN
208.125.0.0/19	/19	ARIN
2600:6000::/32	/32	ARIN
2600:6c7f:9360::/44	/44	ARIN
2602:107:6300::/40	/40	ARIN
2602:107:6310::/44	/44	ARIN
2602:107:e400::/40	/40	ARIN
2603:7000::/28	/28	ARIN
2603:90be::/32	/32	ARIN
2603:90f5:2::/48	/48	ARIN
2604:2000::/32	/32	ARIN

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

141 objects · 19 not announced

Route objects naming AS12271 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.

Prefix	Source	Description	Maintainer	Changed	Routing
24.39.159.0/24	RADB	RR-Route	`MAINT-RR`	2023-11-13	Not announced
45.39.52.0/24	ARIN	Spectrum	`MNT-SDL-157`	2021-08-06	Not announced
45.39.52.0/24	RADB	RR-SERVER DESTROYERS LLC-NYC	`MAINT-RR`	2026-06-26	Not announced
45.39.171.0/24	ARIN	Spectrum	`MNT-SDL-157`	2021-08-06	Not announced
45.39.171.0/24	RADB	RR-SERVER DESTROYERS LLC-NYC	`MAINT-RR`	2026-06-26	Not announced
45.39.178.0/24	ARIN	Spectrum	`MNT-SDL-157`	2021-08-06	Not announced
45.39.178.0/24	RADB	RR-SERVER DESTROYERS LLC-NYC	`MAINT-RR`	2026-06-26	Not announced
45.39.239.0/24	ARIN	Spectrum	`MNT-SDL-157`	2021-08-06	Not announced
45.39.239.0/24	RADB	RR-SERVER DESTROYERS LLC-NYC	`MAINT-RR`	2026-06-26	Not announced
65.185.248.0/24	RADB	RR-Route-GIA	`MAINT-RR`	2023-11-13	Not announced
66.212.81.0/24	RADB	RR-RC-CONSORTIUM FOR WORKER EDUCATION-NYC	`MAINT-RR`	2023-11-13	Not announced
69.193.128.0/17	ARIN	TWC-Agg	`MNT-CC-3517`	2024-08-20	Not announced
74.68.0.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Not announced
104.207.214.0/24	RADB	RR-RC-APXnet-NYCity	`MAINT-RR`	2023-11-13	Not announced
142.252.154.0/24	ARIN	Spectrum	`MNT-SDL-157`	2021-08-06	Not announced
142.252.154.0/24	RADB	RR-SERVER DESTROYERS LLC-NYC	`MAINT-RR`	2026-06-26	Not announced
162.220.72.0/22	RADB	RR-Route IP Source-Velocity	`MAINT-RR`	2023-11-13	Not announced
192.111.216.0/24	RADB	Environmental Defense Fund-NY	`MAINT-RR`	2023-11-13	Not announced
2603:703d::/32	RADB	RR-BC-TWC WIFI	`MAINT-RR`	2023-11-13	Not announced
23.246.64.0/18	ARIN	Charter Communications L-TWC NYC AS12271	`MNT-CC-3517`	2024-06-11	Announced
23.246.64.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.29.96.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.29.128.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.30.224.0/20	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.39.104.0/21	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.39.112.0/20	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.39.128.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.90.0.0/16	ARIN	Charter Communications L-TWC NYC AS12271	`MNT-CC-3517`	2024-06-11	Announced
24.97.123.0/24	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.97.124.0/22	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.97.184.0/23	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.97.200.0/21	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.102.64.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.103.0.0/17	ARIN	Charter Communications L-TWC NYC AS12271	`MNT-CC-3517`	2024-06-11	Announced
24.103.224.0/19	ARIN	Charter Communications L-TWC NYC AS12271	`MNT-CC-3517`	2024-06-11	Announced
24.104.192.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.105.128.0/19	ARIN	Charter Communications L-TWC NYC AS12271	`MNT-CC-3517`	2024-06-11	Announced
24.136.96.0/19	ARIN	Charter Communications L-TWC NYC AS12271	`MNT-CC-3517`	2024-06-11	Announced
24.161.0.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.164.128.0/18	ARIN	Charter Communications L-TWC NYC AS12271	`MNT-CC-3517`	2024-06-11	Announced
24.168.0.0/17	ARIN	Charter Communications L-TWC NYC AS12271	`MNT-CC-3517`	2024-06-11	Announced
24.168.128.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
24.193.0.0/16	ARIN	Charter Communications L-TWC NYC AS12271	`MNT-CC-3517`	2024-06-11	Announced
24.213.160.0/19	ARIN	Charter - NE	`MNT-CC-3517`	2024-08-19	Announced
24.213.160.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
47.230.0.0/16	RADB	CHTR-MAPT-Backbone	`MAINT-CHTR-WD`	2026-07-09	Announced
50.74.0.0/16	ARIN	Charter - NE	`MNT-CC-3517`	2024-08-19	Announced
50.74.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
50.75.192.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
65.86.104.0/21	ARIN	GTT Americas, LLC	`MNT-GAL-104`	2026-08-10	Announced
66.65.0.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
66.65.128.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
66.93.136.0/21	ARIN	GTT Americas, LLC	`MNT-GAL-104`	2026-08-10	Announced
66.108.0.0/16	ARIN	Charter Communications L-TWC NYC AS12271	`MNT-CC-3517`	2024-06-11	Announced
66.110.97.0/24	RADB	RR-RC-TATA-NYC	`MAINT-RR`	2023-11-13	Announced
67.243.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
67.244.0.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
67.244.64.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
67.245.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
67.247.0.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
67.247.96.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
67.250.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
67.251.128.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
67.251.192.0/18	ARIN	Charter - NE	`MNT-CC-3517`	2024-08-19	Announced
67.251.192.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
67.254.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
68.165.184.0/21	ARIN	GTT Americas, LLC	`MNT-GAL-104`	2026-08-10	Announced
68.172.208.0/20	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
68.172.224.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
68.173.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
68.174.0.0/16	ARIN	TWC-Agg	`MNT-CC-3517`	2024-08-20	Announced
68.175.0.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.193.128.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.193.192.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.193.224.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.200.64.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.200.224.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.201.128.0/17	ARIN	TWC-Agg	`MNT-CC-3517`	2024-08-20	Announced
69.202.128.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.203.0.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.203.128.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.203.192.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.204.224.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
69.206.0.0/16	ARIN	TWC-Agg	`MNT-CC-3517`	2024-08-20	Announced
72.43.96.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
72.43.128.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
72.225.64.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
72.225.128.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
72.226.0.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
72.227.128.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
72.229.0.0/16	ARIN	TWC-Agg	`MNT-CC-3517`	2024-08-20	Announced
72.231.0.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
74.0.136.0/21	ARIN	GTT Americas, LLC	`MNT-GAL-104`	2026-08-10	Announced
74.64.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
74.65.192.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
74.66.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
74.68.0.0/16	ARIN	TWC-Agg	`MNT-CC-3517`	2024-08-20	Announced
74.71.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
74.72.0.0/15	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
76.58.52.0/23	ARIN	Charter-NYC	`MNT-CC-3517`	2024-07-09	Announced
98.0.128.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
98.7.0.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
98.7.192.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
98.12.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
98.13.128.0/17	ARIN	TWC-Agg	`MNT-CC-3517`	2024-08-20	Announced
98.14.0.0/15	ARIN	TWC-Agg	`MNT-CC-3517`	2024-08-20	Announced
108.176.0.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
108.176.128.0/18	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
142.105.0.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
142.255.0.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
149.89.0.0/16	RADB	RR-RC-Stuyvesant High School-NY City	`MAINT-RR`	2023-11-13	Announced
150.221.96.0/19	ARIN	Charter Communications LLC	`MNT-CC04`	2025-07-31	Announced
150.221.96.0/19	RADB	CHTR-MAPT	`MAINT-CHTR-WD`	2026-06-26	Announced
150.224.177.0/24	ARIN	Charter-NYC-ASN 12271	`MNT-CC04`	2024-08-05	Announced
158.222.128.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
168.148.128.0/19	ARIN	Charter - NYC	`MNT-CC04`	2024-08-29	Announced
172.254.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
184.74.128.0/17	ARIN	Charter-NYC	`MNT-CC-3517`	2024-07-29	Announced
184.75.0.0/17	ARIN	Charter-NYC	`MNT-CC-3517`	2024-07-29	Announced
184.152.0.0/16	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
184.153.0.0/17	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
192.61.128.0/19	RADB	RR-Map-T	`MAINT-RR`	2026-06-26	Announced
192.131.40.0/22	RADB	RR-RC-Park Terrace Gardens Coop-NYC	`MAINT-RR`	2023-11-13	Announced
198.151.199.0/24	RADB	NTL_SUNY ULSTER COMMUNITY COLLEGE	`MAINT-RR`	2026-03-03	Announced
198.151.200.0/24	RADB	NTL_SUNY ULSTER COMMUNITY COLLEGE	`MAINT-RR`	2026-03-03	Announced
198.151.201.0/24	RADB	NTL_SUNY ULSTER COMMUNITY COLLEGE	`MAINT-RR`	2026-03-03	Announced
198.151.202.0/24	RADB	NTL_SUNY ULSTER COMMUNITY COLLEGE	`MAINT-RR`	2026-03-03	Announced
198.151.203.0/24	RADB	NTL_SUNY ULSTER COMMUNITY COLLEGE	`MAINT-RR`	2026-03-03	Announced
198.179.64.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
204.210.128.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
207.251.238.0/23	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
208.105.0.0/18	ARIN	Charter-NYC	`MNT-CC-3517`	2024-07-29	Announced
208.105.64.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
208.125.0.0/19	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced
2600:6000::/32	RADB	RC-Route	`MAINT-RR`	2023-11-13	Announced
2600:6c7f:9360::/44	ARIN	Charter Communications LLC	`MNT-CC04`	2025-08-12	Announced
2602:107:6300::/40	RADB	RR-INFRASTRUCTURE-NYC	`MAINT-RR`	2026-06-26	Announced
2602:107:6310::/44	RADB	RR-INFRASTRUCTURE-NYC	`MAINT-RR`	2026-06-26	Announced
2602:107:e400::/40	RADB	Charter Communications	`MAINT-RR`	2026-03-06	Announced
2603:7000::/28	RADB	RR-TWC-NYC	`MAINT-RR`	2026-07-09	Announced
2604:2000::/32	RADB	RR-Route	`MAINT-RR`	2023-11-13	Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS12271 directly show who expects to carry it.

AS-set	Where	Relationship
`AS-CHTR-CC-3517`	ARIN	Lists AS12271 as a direct member
`AS-CHTR-CC-3518`	ARIN	Lists AS12271 as a direct member
`AS-CHTR-CC-4423`	ARIN	Lists AS12271 as a direct member
`AS-CHTR-CC04`	ARIN	Lists AS12271 as a direct member
`AS-CHTR-SYNC`	RADB	Lists AS12271 as a direct member
`AS-HURRICANE`	RADB	Lists AS12271 as a direct member
`AS-HURRICANEV6`	RADB	Lists AS12271 as a direct member
`AS-RR-RES`	RADB	Lists AS12271 as a direct member
`AS-XO-B`	ARIN	Lists AS12271 as a direct member
`AS199746:AS-BLACKLIST`	RIPE	Lists AS12271 as a direct member
`AS204464:AS-BLACKLIST`	RIPE	Lists AS12271 as a direct member
`AS393562:AS-CUST-PEERS`	RADB	Lists AS12271 as a direct member

RPKI from rpki-client, validated 2026-10-20 11:55 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-20. Cross-check on bgp.he.net.