Bogon ASN
Reserved or special-use ASN ranges that should never appear in real BGP announcements.
| ID | bogon_asn_v1 |
|---|---|
| Formats | csvgz |
| Update Frequency | Daily |
| Last Updated | November 8th 2026 (today) |
| Entries | 14 |
File Size (csvgz) | 247 B |
Overview
For flagging routing data that names a private, documentation-only or otherwise invalid ASN.
Free under CC BY-SA 4.0, like every Open database: credit InternetData with a link to internetdata.io, and share what you build from it under the same license.
Formats
curl -L -o bogon_asn_v1.csv.gz -X GET "https://internetdata.io/api/v2/database/download?id=bogon_asn_v1&format=csvgz&apikey=$APIKEY"Schema
| Name | Type | Description |
|---|---|---|
start_asn | integer | Start ASN of the bogon range. |
end_asn | integer | End ASN of the bogon range. |
description | string | Human-readable description of the reserved/bogon ASN range. |
Samples
| start_asn | end_asn | description |
|---|---|---|
330752 | 393215 | Unallocated |
64512 | 65534 | Reserved for Private Use |
4200000000 | 4294967294 | Reserved for Private Use |
404381 | 4199999999 | Unallocated |
65536 | 65551 | Reserved for use in documentation and sample code |