Home Prefix Lookup40.27.174.0/23

40.27.174.0/23 - BGP Prefix (MOAS)

IPv4ARINannouncedMOAS RPKI Valid

CIDR

40.27.174.0/23

IP Version

IPv4

Addresses

512

Mask

/23 (255.255.254.0)

Country

🇺🇸 United States

City

San Jose (Fremont)

RIR

ARIN

Status

announced

Allocated

Announced BGP Routes

2 of 2 routes

MOAS - 2 origin ASNs

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
40.27.174.0/23	AS33651 CMCS - Comcast Cable Communications, LLC	Valid	ARINOther IRR	2026-10-11
40.27.174.0/23	AS33667 CMCS - Comcast Cable Communications, LLC	Valid	ARINOther IRR	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
40.27.174.0/23	AS33651	/24	arin
40.27.174.0/23	AS33667	/24	arin
40.27.174.0/23	AS55201	/24	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS33651	ARIN	MNT-DCL-577	2026-08-25
AS33667	ARIN	MNT-DCL-577	2026-08-25
AS55201	ARIN	MNT-DCL-577	2026-08-25
AS33667	Other IRR	MAINT-AS834	2026-08-25
AS33651	Other IRR	MAINT-AS834	2026-08-25
AS55201	Other IRR	MAINT-AS834	2026-08-25

Transfer History

Registry transfers of 40.27.174.0/23, blocks inside it, or blocks containing it.

40.27.0.0/16M&A · 2025-05-29
Eli Lilly and Company
🇺🇸 US ARIN
→
Eli Lilly and Company
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-05-29	40.27.0.0/16	Eli Lilly and Company 🇺🇸 US ARIN	Eli Lilly and Company 🇺🇸 US ARIN	M&A

Origin ASNs (2)

AS33651MOAS

CMCS - Comcast Cable Communications, LLC

AS33667MOAS

CMCS - Comcast Cable Communications, LLC

Geolocation

Country🇺🇸United StatesUS

RegionCalifornia

CitySan Jose (Fremont)

Coordinates37.3693, -121.8400 ↗

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/40.27.174.0/23

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

curl -s "https://api.ipctl.io/v1/prefix/40.27.174.0/23" | jq

External Links

RIPEstat