PeerGlass

Fetch a rich hierarchical overview of an IP prefix.

IP address space is organized in a tree structure:

• A /8 contains 256 /16s, each /16 contains 256 /24s, and so on.

• 'Less-specific' = the parent block this prefix was carved from.

• 'More-specific' = smaller blocks assigned within this prefix.

Think of it like a real estate map: Less-specific = the city block (containing your property) The prefix itself = your land parcel More-specific = subdivisions within your parcel

This tool fetches all three layers in parallel (3 RIPE Stat API calls simultaneously) and returns a unified view including:

• Current holder and announcement status

• Which ASN(s) are announcing it (multiple = potential hijack)

• All less-specific (parent) prefixes up the tree

• All more-specific (child) prefixes within the block

Combine with rir_check_rpki to validate the announcing ASN. Results are cached for 1 hour.

Args: params (PrefixOverviewInput): - prefix (str): IP prefix in CIDR notation (e.g. '1.1.1.0/24') - response_format (str): 'markdown' (default) or 'json'

Returns: str: Holder info, BGP status, and full prefix hierarchy table. JSON schema: { "prefix": str, "holder": str, "rir": str, "country": str, "announced": bool, "announcing_asns": [str], "allocation_status": str, "related_prefixes": [{"prefix": str, "relationship": str, "holder": str, "origin_asn": str}], "errors": [str] }