Property talk:P3797

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autonomous system number
unique identifier for a collection of connected Internet Protocol (IP) routing prefixes under the control of one or more network operators

Description	A unique ASN is allocated to each AS for use in BGP routing.
Represents	autonomous system number (Q29001086)
Data type	External identifier
Template parameter	asn at en:template:Infobox NSP
Domain	According to this template: organization (Q43229) According to statements in the property: organization (Q43229) When possible, data should only be stored as statements
Allowed values	According to this template: number According to statements in the property: [1-9]\d* When possible, data should only be stored as statements
Example	Cogent Communications (Q1106938) → 174 Library of Congress (Q131454) → 2532
Source	https://www.iana.org/assignments/as-numbers/as-numbers.xhtml https://www.ripe.net/manage-ips-and-asns/db https://www.arin.net/ https://www.apnic.net/ http://www.afrinic.net/ http://www.lacnic.net/ ftp://ftp.arin.net/info/asn.txt
Formatter URL	https://bgp.he.net/AS$1
Robot and gadget jobs	probably
See also	IPv4 routing prefix (P3761), IPv6 routing prefix (P3793)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Mix'n'match (Report) Database reports/Constraint violations/P3797 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,608 Main statement 1,605 out of 91,000 (2% complete) 99.8% of uses Qualifier 2 0.1% of uses Reference 1 <0.1% of uses
Search for values

[create Create a translatable help page (preferably in English) for this property to be included here]

Format “[1-9]\d{0,9}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P3797#Format, hourly updated report, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

List of violations of this constraint: Database reports/Constraint violations/P3797#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

Type “organization (Q43229)”: item must contain property “instance of (P31)” with classes “organization (Q43229)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P3797#Type Q43229, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3797#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3797#Scope, SPARQL

Format “(214748364[0-7])|(21474836[0-3][0-9]{1})|(2147483[0-5][0-9]{2})|(214748[0-2][0-9]{3})|(21474[0-7][0-9]{4})|(2147[0-3][0-9]{5})|(214[0-6][0-9]{6})|(21[0-3][0-9]{7})|(20[0-9]{8})|(1[0-9]{9})|([1-9][0-9]{8})|([1-9][0-9]{7})|([1-9][0-9]{6})|([1-9][0-9]{5})|([1-9][0-9]{4})|([1-9][0-9]{3})|([1-9][0-9]{2})|([1-9][0-9]{1})|([1-9])”: value must be formatted using this pattern (PCRE syntax). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3797#Format, SPARQL

Label required in languages: en: Entities using this property should have labels in one of the following languages: en (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3797#Label in 'en' language, search, SPARQL

Item “official website (P856)”: Items with this property should also have “official website (P856)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3797#Item P856, SPARQL

Description required in languages: en: Entities using this property should have descriptions in one of the following languages: en (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3797#Description in 'en' language, search, SPARQL

Description required in languages: fr: Entities using this property should have descriptions in one of the following languages: fr (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3797#Description in 'fr' language, search, SPARQL

Description required in languages: de: Entities using this property should have descriptions in one of the following languages: de (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3797#Description in 'de' language, search, SPARQL

This property is being used by: en:Template:Infobox network service provider Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Restrictions too strict?

Currently, the subject type constraint (Q21503250) only allows usage of this property on instances of organization (Q43229). However, it is fair to use this property on Wikidata items of the following types: internet backbone (Q1360517) and Internet exchange point (Q1433061). Should we relax the restriction on this property, or should the two types be adjusted to become instances of organization (Q43229)? Southparkfan (talk) 18:50, 28 May 2022 (UTC)

big confusion

Mix-N-match catalog https://mix-n-match.toolforge.org/#/catalog/3737 is called "autonomous system number".

The entry https://mix-n-match.toolforge.org/#/entry/96337808 says that SUSE (Q14594782) has "catalog id 29298" but then links to https://www.peeringdb.com/net/4033. This talks about SUSE Linux (Q10513863), but the correct entity is SUSE (the company).

The main formatterURL of autonomous system number (P3797) resolves to https://bgp.he.net/AS4033, which is AS4033 Air Force Systems Networking

A third-party formatterURL on the same property is https://www.peeringdb.com/search?q=AS$1, which leads to https://www.peeringdb.com/search?q=AS4033, which lists 3 unrelated organizations whose AS start with "4033".

On the other hand, https://www.peeringdb.com/search?q=AS29298 redirects to https://www.peeringdb.com/net/4033, which is SUSE. And https://bgp.he.net/AS29298 is AS29298 SUSE Software Solutions Germany GmbH.

So I'm utterly confused: I think the catalog is broken, but also the third-party formatterURL doesn't work well. Vladimir Alexiev (talk) 18:01, 25 March 2023 (UTC)