Country
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ASN LANDING PAGE
AS18881
AS18881 - TELEFONICA BRASIL S.A
Last updated · Jul 20, 2026
Total prefixes
1044
IPv4 prefixes
972
IPv6 prefixes
72
ASN summary
How to read the scale of AS18881
AS18881 - TELEFONICA BRASIL S.A currently reports 1044 prefixes and 42 upstream, downstream, or peer relationships. These counts describe the current dataset; they do not by themselves prove network quality, reach, or service use.
What can an ASN page answer?
An ASN page shows the public organization label, country or region, BGP prefixes, and available peer and upstream relationships. It adds network context but cannot confirm a website host, physical facility, security status, or service quality.
How should you read the organization and region fields?
AS18881 - TELEFONICA BRASIL S.A is currently associated with an unknown region. These values come from public network sources and are useful lookup clues; an organization label, registration region, and actual service location may differ.
How should you verify the AS18881 result?
The page shows ASN data returned by the current upstream query; interpret it with the update time. Open representative IP pages from the same network and compare prefixes, source labels, and query times. Verify operator or service claims with the relevant registry or network operator.
How to verify this ASN result
AS18881 ASN lookupAS18881 BGPAS18881 peersAS18881 prefixesAS18881 upstreamsAS18881 - TELEFONICA BRASIL S.A ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS267130
AS267130
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AS12956
AS12956
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AS61795
AS61795
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AS264470
AS264470
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AS1031
AS1031
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AS52320
AS52320
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AS52688
AS52688
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AS262487
AS262487
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AS263278
AS263278
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AS263310
AS263310
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AS264275
AS264275
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AS267613
AS267613
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AS270980
AS270980
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AS3360
AS3360
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AS11993
AS11993
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AS13335
AS13335
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AS16921
AS16921
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AS21433
AS21433
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AS26599
AS26599
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AS27699
AS27699
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AS28177
AS28177
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AS28324
AS28324
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AS28581
AS28581
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AS52657
AS52657
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AS52837
AS52837
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AS52890
AS52890
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AS52915
AS52915
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AS52938
AS52938
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AS52958
AS52958
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AS52990
AS52990
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AS53111
AS53111
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AS61588
AS61588
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AS61621
AS61621
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AS61899
AS61899
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AS262301
AS262301
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AS262478
AS262478
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AS262694
AS262694
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AS263347
AS263347
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AS263422
AS263422
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AS263625
AS263625
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Peers
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 177.132.0.0/14 | AS18881 | — |
| 177.132.128.0/20 | AS18881 | — |
| 177.132.144.0/21 | AS18881 | — |
| 177.132.16.0/20 | AS18881 | — |
| 177.132.160.0/19 | AS18881 | — |
| 177.132.192.0/19 | AS18881 | — |
| 177.132.224.0/19 | AS18881 | — |
| 177.132.224.0/21 | AS18881 | — |
| 177.132.32.0/21 | AS18881 | — |
| 177.132.48.0/20 | AS18881 | — |
| 177.132.96.0/19 | AS18881 | — |
| 177.133.0.0/18 | AS18881 | — |
| 177.133.128.0/19 | AS18881 | — |
| 177.133.160.0/19 | AS18881 | — |
| 177.133.192.0/19 | AS18881 | — |
| 177.133.192.0/21 | AS18881 | — |
| 177.133.208.0/20 | AS18881 | — |
| 177.133.224.0/19 | AS18881 | — |
| 177.133.64.0/19 | AS18881 | — |
| 177.133.96.0/19 | AS18881 | — |
| 177.134.0.0/19 | AS18881 | — |
| 177.134.128.0/19 | AS18881 | — |
| 177.134.160.0/19 | AS18881 | — |
| 177.134.192.0/19 | AS18881 | — |
| 177.134.224.0/19 | AS18881 | — |
| 177.134.32.0/19 | AS18881 | — |
| 177.134.64.0/20 | AS18881 | — |
| 177.134.72.0/21 | AS18881 | — |
| 177.134.80.0/20 | AS18881 | — |
| 177.134.96.0/19 | AS18881 | — |
| 177.135.0.0/19 | AS18881 | — |
| 177.135.112.0/20 | AS18881 | — |
| 177.135.128.0/19 | AS18881 | — |
| 177.135.128.0/20 | AS18881 | — |
| 177.135.144.0/20 | AS18881 | — |
| 177.135.160.0/20 | AS18881 | — |
| 177.135.168.0/21 | AS18881 | — |
| 177.135.176.0/20 | AS18881 | — |
| 177.135.192.0/20 | AS18881 | — |
| 177.135.208.0/21 | AS18881 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS18881 represent?
AS18881 is an autonomous system number. The current source associates it with AS18881 - TELEFONICA BRASIL S.A and the region field an unknown region; those values add network context but do not prove a specific service, physical location, or quality level.
What are peers, upstreams, and prefixes useful for on the AS18881 page?
They help explain the scale, interconnection depth, and route structure of AS18881. Richer peering and upstream data often indicate broader network reach, but they should still be interpreted together with prefixes and related IP landing pages.
What should you do after reviewing AS18881?
Open a concrete IP page to check how the address maps into AS18881, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
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