Home Prefix Lookup208.117.48.0/21

208.117.48.0/21 - SendGrid (AS11377)

IPv4ARINannouncedAS11377SENDGRID - SendGrid, Inc. RPKI Valid

CIDR

208.117.48.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇺🇸 United States

City

Denver (Ballpark)

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
208.117.48.0/21	AS11377 SENDGRID - SendGrid, Inc.	Valid	ARINOther IRR	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
208.117.48.0/21	AS11377	/21	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS11377	ARIN	MNT-SENDG	2025-06-03
AS11377	Other IRR	MAINT-AS11377	2023-11-13

Transfer History

Registry transfers of 208.117.48.0/21, blocks inside it, or blocks containing it.

208.117.48.0/20Transfer · 2022-04-13
Steadfast
🇺🇸 US ARIN
→
Twilio SendGrid
🇺🇸 US ARIN
208.117.0.0/18M&A · 2016-08-11
Steadfast Networks
🇺🇸 US ARIN
→
Steadfast
🇺🇸 US ARIN

Date	Resource	From	To	Type
2022-04-13	208.117.48.0/20	Steadfast 🇺🇸 US ARIN	Twilio SendGrid 🇺🇸 US ARIN	Transfer
2016-08-11	208.117.0.0/18	Steadfast Networks 🇺🇸 US ARIN	Steadfast 🇺🇸 US ARIN	M&A

Origin ASN

AS11377

SENDGRID - SendGrid, Inc.

Related Prefixes

More prefixes of AS11377

All prefixes of AS11377 →

Geolocation

Country🇺🇸United StatesUS

RegionColorado

CityDenver (Ballpark)

Coordinates39.7477, -104.9900 ↗

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/208.117.48.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/208.117.48.0/21" | jq

External Links

RIPEstat