Home Prefix Lookup168.203.32.0/19

168.203.32.0/19 - Bird.Com (AS23528)

IPv4ARINallocatedAS23528SPARKPOST - Bird.com Inc.No ROA

CIDR

168.203.32.0/19

IP Version

IPv4

Addresses

8.1K

Mask

/19 (255.255.224.0)

Country

🇺🇸 United States

City

Seattle (Downtown Seattle)

RIR

ARIN

Status

allocated

Allocated

2022-07-18

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

More-Specific Announcements

12 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
168.203.32.0/23	AS23528 SPARKPOST - Bird.com Inc.	No ROA	-	2026-10-12
168.203.34.0/23	AS23528 SPARKPOST - Bird.com Inc.	No ROA	-	2026-10-12
168.203.36.0/23	AS23528 SPARKPOST - Bird.com Inc.	No ROA	-	2026-10-12
168.203.38.0/23	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-12
168.203.40.0/23	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-12
168.203.42.0/23	AS23528 SPARKPOST - Bird.com Inc.	No ROA	-	2026-10-12
168.203.44.0/24	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-12
168.203.46.0/23	AS23528 SPARKPOST - Bird.com Inc.	No ROA	-	2026-10-12
168.203.48.0/22	AS23528 SPARKPOST - Bird.com Inc.	No ROA	-	2026-10-12
168.203.52.0/24	AS23528 SPARKPOST - Bird.com Inc.	No ROA	-	2026-10-12
168.203.53.0/24	AS23528 SPARKPOST - Bird.com Inc.	No ROA	-	2026-10-12
168.203.63.0/24	AS16509 AMAZON-02 - Amazon.com, Inc.	Valid	-	2026-10-12

Transfer History

Registry transfers of 168.203.32.0/19, blocks inside it, or blocks containing it.

168.203.32.0/19Transfer · 2022-07-18
The First Church of Christ, Scientist
🇺🇸 US ARIN
→
Sparkpost
🇺🇸 US ARIN

Date	Resource	From	To	Type
2022-07-18	168.203.32.0/19	The First Church of Christ, Scientist 🇺🇸 US ARIN	Sparkpost 🇺🇸 US ARIN	Transfer

Origin ASN

AS23528

SPARKPOST - Bird.com Inc.

Related Prefixes

More prefixes of AS23528

All prefixes of AS23528 →

Geolocation

Country🇺🇸United StatesUS

RegionWashington

CitySeattle (Downtown Seattle)

Coordinates47.6143, -122.3390 ↗

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/168.203.32.0/19

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

curl -s "https://api.ipctl.io/v1/prefix/168.203.32.0/19" | jq

External Links

RIPEstat