AS7871 SEI Data, Inc. — IPv4 Prefixes

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

Baseline (neutral) 65
Trust score 65 / 100

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

Network profile

Source: PeeringDB →

Geographic scope Regional

Traffic ratio Mostly Inbound

Peering policy Open

IRR record RADB::RS-SEID

Website ↗

AS7871 — global IP footprint

Cities where AS7871 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDR	IPs	PTR Density	Organization	Country	State	City
170.4.32.0/19	8.2K	91.1%	SEI Data, Inc.	US	Indiana	Rising Sun
206.162.192.0/19	8.2K	71.7%	SEI Data, Inc.	US	Indiana	Dillsboro
98.158.208.0/20	4.1K	98.7%	SEI Data, Inc.	US	Indiana	Moores Hill
170.4.32.0/20	4.1K	90.8%	SEI Data, Inc.	US	Indiana	Rising Sun
170.4.176.0/20	4.1K	90.6%	SEI Data, Inc.	US	Indiana	Versailles
206.162.208.0/20	4.1K	75.5%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.48.0/21	2.0K	91.6%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.192.0/21	2.0K	64.2%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.60.0/22	1.0K	91.7%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.200.0/22	1.0K	62.8%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.58.0/23	512	92.8%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.206.0/23	512	81.8%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.56.0/24	256	84.0%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.205.0/24	256	79.7%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.57.128/25	128	92.2%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.204.0/25	128	78.9%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.57.0/26	64	92.2%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.204.128/26	64	78.1%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.57.64/27	32	90.6%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.204.224/27	32	78.1%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.57.112/28	16	93.8%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.204.208/28	16	81.3%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.57.96/29	8	87.5%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.204.200/29	8	75.0%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.57.108/30	4	100.0%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.204.192/30	4	75.0%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.57.104/31	2	100.0%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.204.196/31	2	100.0%	SEI Data, Inc.	US	Indiana	Dillsboro
170.4.57.106/32	1	100.0%	SEI Data, Inc.	US	Indiana	Lawrenceburg
206.162.204.199/32	1	100.0%	SEI Data, Inc.	US	Indiana	Dillsboro

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS7871 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

Prefix	Announcement samples	Last seen
206.162.192.0/19	15,051	2026-07-29 14:42:40
98.158.208.0/20	15,044	2026-07-29 14:42:09
170.4.32.0/19	14,948	2026-07-29 14:42:09
170.4.176.0/20	14,785	2026-07-29 14:42:09

Frequently Asked Questions

What is AS7871?

AS7871 is an Autonomous System Number assigned to SEI Data, Inc.. 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 AS7871 announce?

AS7871 announces 24.6K IPv4 addresses distributed across 30 routed CIDR prefixes. The network is registered in United States.

Who operates AS7871?

AS7871 is operated by SEI Data, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS7871 registered in?

AS7871 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.