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Autonomous System

AS12128

Refinitiv US LLC

Announced IPs
768
CIDR prefixes
3
ASN
AS12128

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
146.242.25.0/24 256
0.0%
Refinitiv US LLC US
159.220.78.0/24 256
5.5%
Refinitiv US LLC US
159.220.162.0/24 256
0.4%
Refinitiv US LLC US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS12128 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
159.220.78.0/24 52,677 2026-07-23 22:36:50
146.242.25.0/24 51,278 2026-07-23 22:36:50
159.220.162.0/24 3,633 2026-05-30 11:55:38

Frequently Asked Questions

What is AS12128?

AS12128 is an Autonomous System Number assigned to Refinitiv US LLC. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS12128 announce?

AS12128 announces 768 IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in United States.

Who operates AS12128?

AS12128 is operated by Refinitiv US LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS12128 registered in?

AS12128 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 22:40:31 UTC
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