AS2003
Electric Power Research Institute
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.
- Baseline (neutral) 65
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS2003 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 |
|---|---|---|
| 144.58.46.0/24 | 6,630 | 2026-07-23 08:07:36 |
| 144.58.45.0/24 | 6,538 | 2026-07-23 08:07:33 |
| 144.58.44.0/24 | 6,515 | 2026-07-23 08:07:33 |
| 144.58.112.0/20 | 6,130 | 2026-07-23 08:07:32 |
| 144.58.129.0/24 | 6,128 | 2026-07-23 08:07:32 |
| 144.58.224.0/20 | 6,125 | 2026-07-23 08:07:32 |
| 144.58.40.0/24 | 6,123 | 2026-07-23 08:07:32 |
| 144.58.144.0/24 | 6,121 | 2026-07-23 08:07:32 |
| 144.58.208.0/20 | 6,117 | 2026-07-23 08:07:32 |
| 144.58.248.0/21 | 5,232 | 2026-07-23 08:07:33 |
| 144.58.176.0/20 | 5,226 | 2026-07-23 08:07:33 |
| 144.58.51.0/24 | 5,146 | 2026-07-23 08:07:36 |
| 144.58.50.0/24 | 5,141 | 2026-07-23 08:07:36 |
| 144.58.240.0/21 | 4,564 | 2026-07-23 08:07:33 |
| 144.58.96.0/22 | 4,559 | 2026-07-23 08:07:33 |
| 144.58.140.0/24 | 4,555 | 2026-07-23 08:07:33 |
| 144.58.48.0/24 | 4,529 | 2026-07-23 08:07:33 |
| 144.58.49.0/24 | 4,528 | 2026-07-23 08:07:33 |
| 144.58.43.0/24 | 3,642 | 2026-07-23 08:07:38 |
| 144.58.42.0/24 | 3,636 | 2026-07-23 08:07:38 |
| 144.58.5.0/24 | 3,627 | 2026-07-23 08:07:35 |
| 144.58.3.0/24 | 3,619 | 2026-07-23 08:07:35 |
| 144.58.2.0/24 | 3,617 | 2026-07-23 08:07:35 |
| 144.58.4.0/24 | 3,616 | 2026-07-23 08:07:35 |
| 144.58.6.0/24 | 3,616 | 2026-07-23 08:07:35 |
| 144.58.1.0/24 | 3,615 | 2026-07-23 08:07:35 |
| 144.58.0.0/24 | 3,605 | 2026-07-23 08:07:35 |
| 144.58.241.0/24 | 3,324 | 2026-07-23 08:07:33 |
Frequently Asked Questions
What is AS2003?
AS2003 is an Autonomous System Number assigned to Electric Power Research Institute. 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 AS2003 announce?
AS2003 announces 26.6K IPv4 addresses distributed across 16 routed CIDR prefixes. The network is registered in United States.
Who operates AS2003?
AS2003 is operated by Electric Power Research Institute. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS2003 registered in?
AS2003 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
