AS11971

Name: AS11971 — Pfizer Inc.
Creator: ipdex

Pfizer Inc. Unknown registered in United States

6IPv4 prefixes

0IPv6 prefixes

#16,334AS Rank

326/326RIS visibility

#4,646Rank in United States

1999-02-17Allocated

Pfizer Inc. (AS11971) — Unknown, registered in United States. announces 6 IPv4 prefixes + 0 IPv6 prefixes. Rank in United States: #4646. Allocated: 1999-02-17.

IPv4 6IPv6 0

Announced prefixes · 6

v4 146.240.1.0/24 unknown
v4 148.168.192.0/22 unknown
v4 148.168.192.0/23 unknown
v4 148.168.224.0/22 unknown
v4 148.168.32.0/19 unknown
v4 148.168.35.0/24 unknown

Routing: 7 IPv4 · 0 IPv6 announced · RIS visibility 326/326 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	6
2026-06-13	6

AS topology · Customer cone 1

Providers · 2

AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
AS49915 Megaport

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