AS37661
Nigerian Research and Education Network Limited by Guarantee
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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: IXPN Lagos
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 102.131.64.0/18 | 16.4K |
0.0%
|
NRaE1-AS | NG | — | — |
| 154.68.192.0/18 | 16.4K |
0.0%
|
NRaE1-AS | NG | Rivers State | Port Harcourt |
| 196.220.192.0/20 | 4.1K |
0.0%
|
NRaE1-AS | NG | — | — |
| 164.160.192.0/21 | 2.0K |
0.0%
|
Nigerian Research and Education Network Limited by Guarantee | NG | — | — |
| 196.27.136.0/24 | 256 |
0.0%
|
NRaE1-AS | NG | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS37661 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 |
|---|---|---|
| 164.160.192.0/21 | 63,634 | 2026-07-24 10:28:59 |
| 196.220.192.0/20 | 62,947 | 2026-07-24 10:28:55 |
| 196.27.136.0/24 | 59,757 | 2026-07-24 10:28:56 |
| 102.131.64.0/18 | 36,467 | 2026-07-24 09:34:10 |
| 154.68.192.0/18 | 29,721 | 2026-07-24 10:28:09 |
| 154.68.200.0/24 | 26,464 | 2026-07-24 10:28:09 |
| 154.68.227.0/24 | 26,459 | 2026-07-24 10:28:09 |
| 154.68.230.0/24 | 26,444 | 2026-07-24 10:28:09 |
| 196.220.224.0/20 | 1,713 | 2026-07-01 10:49:56 |
| 102.131.128.0/17 | 332 | 2026-07-14 19:05:19 |
| 154.68.226.0/24 | 1 | 2026-05-22 02:39:02 |
Frequently Asked Questions
What is AS37661?
AS37661 is an Autonomous System Number assigned to Nigerian Research and Education Network Limited by Guarantee. 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 AS37661 announce?
AS37661 announces 37.1K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Nigeria.
Who operates AS37661?
AS37661 is operated by Nigerian Research and Education Network Limited by Guarantee. The organization is based in Nigeria. You can view all IP ranges and related ASNs on the organization page.
What country is AS37661 registered in?
AS37661 is registered in Nigeria. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
