Home Prefix Lookup209.6.128.0/17

209.6.128.0/17 - RCN (AS6079)

IPv4ARINannouncedAS6079RCN-AS - RCN RPKI Valid

CIDR

209.6.128.0/17

IP Version

IPv4

Addresses

32.7K

Mask

/17 (255.255.128.0)

Country

🇺🇸 United States

City

Brookline

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
209.6.128.0/17	AS6079 RCN-AS - RCN	Valid	Other IRR	2026-10-14

Related Announcements

1 less-specific, 18 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
209.6.0.0/16	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.128.0/20	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.144.0/21	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.152.0/23	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.154.0/23	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.162.0/24	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.164.0/22	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.168.0/23	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.170.0/23	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.176.0/20	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.192.0/20	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.208.0/22	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.212.0/22	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.216.0/22	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.220.0/22	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.224.0/22	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.228.0/22	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.232.0/22	AS6079 RCN-AS - RCN	Valid	-	2026-10-14
209.6.240.0/20	AS6079 RCN-AS - RCN	Valid	-	2026-10-14

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
209.6.0.0/16	AS6079	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS6079	Other IRR	MAINT-AS6079	2023-11-13

Origin ASN

AS6079

RCN-AS - RCN

Related Prefixes

Covering prefix

209.6.0.0/16AS6079

More prefixes of AS6079

All prefixes of AS6079 →

Geolocation

Country🇺🇸United StatesUS

RegionMassachusetts

CityBrookline

Coordinates42.3318, -71.1212 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/209.6.128.0/17

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/209.6.128.0/17" | jq

External Links

RIPEstat