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Weekly BGP Table Watch: IPv4, IPv6 and ASN Changes — 2026-10-26

The global BGP table keeps moving every day. This weekly BGP Table Watch snapshot tracks IPv4 prefixes, IPv6 prefixes, visible ASNs and the largest routing-table changes reported during the last week.

The goal is not to alarm on every change. BGP is noisy by design. The goal is to build a simple operational habit: watch the size of the routing table, notice large origin-AS changes, and keep an eye on where new ASNs and route withdrawals appear.

Weekly snapshot

MetricCurrent value7-day change
IPv4 active BGP entries1,085,006-1,012 over 7 days
IPv6 active BGP entries259,538+1,025 over 7 days
Visible ASNs in BGP79,777+72 over 7 days

Daily history

This table uses the latest available daily samples from Potaroo/CIDR Report.

DateIPv4 prefixesIPv6 prefixesVisible ASNs
2026-10-191,085,338258,70479,700
2026-10-201,085,344258,83279,685
2026-10-211,085,093258,92379,735
2026-10-221,085,491258,89479,738
2026-10-231,085,697259,66079,725
2026-10-241,085,601259,59779,757
2026-10-251,085,234259,64079,760
2026-10-261,085,006259,53879,777

New ASNs seen in the routing table

The table below shows newly visible ASNs from the CIDR Report weekly delta section, together with the number of prefixes visible for each ASN in this snapshot.

PrefixesASNAS Description
39AS17404AS-UPTIMEPIPE - Pipe Networks LLC, US
36AS41039DON-FTTH - Timer, LLC, RU
20AS147176NNECL-AS-AP - NZ Network Enterprise Co., Ltd., TH
11AS135598SIBERFY-AS-AP - SIBERFY (PRIVATE) LIMITED, PK
10AS218729TEXT-TECHNOLOGY-LIMITED - TEXT TECHNOLOGY LIMITED, HK
7AS38874KARVY-IN-AS-HYD - KARVY CONSULTANTS LTD.,, IN
5AS34287VOLGOGRAD-GSM-AS - T2 Mobile LLC, RU
5AS132317NICHE-IN - Niche Software Solutions Pvt Ltd, IN
5AS132806KUET-AS-AP - Khulna University of Engineering & Technology, BD
5AS152274AS152274-79 - KRNIC-ASBLOCK-AP, KR
5AS262623AS262623 - NETSALTO PROVEDOR DE ACESSO A INTERNET LTDA, BR
4AS46499JEIX-US - AirRabbit, LLC, US

Largest net increases by origin AS

PrefixesChangeASNAS Description
5531,447 → 2,000AS1540DNIC-ASBLK-01534-01546 - Headquarters, USAISC, US
110873 → 983AS272096AS272096 - PACKETHUB S.A., PA
109170 → 279AS53755IOFLOOD - Input Output Flood LLC, US
10017 → 117AS268188AS268188 - ATIVA TELECOM LTDA, BR
581,292 → 1,350AS9304HUTCHISON-AS-AP - HGC Global Communications Limited, HK
5357 → 110AS137951ASLINE-AS-AP - ASLINE LIMITED, HK
48489 → 537AS140227HKCICL-AS-AP - Hong Kong Communications International Co., Limited, HK
390 → 39AS17404AS-UPTIMEPIPE - Pipe Networks LLC, US
371,352 → 1,389AS36903Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM - Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM, MA
374 → 41AS198753STEPAN-ODINTSOV-PR-BEOGRAD-AS - Stepan Odintsov trading as STEPAN ODINTSOV PR BEOGRAD, RS

Largest net decreases by origin AS

PrefixesChangeASNAS Description
-451765 → 314AS367DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD), US
-3812,075 → 1,694AS398781OSL-188 - OCULUS NETWORKS INC, US
-3521,200 → 848AS17561LCS-AS-AP - LARUS Limited, HK
-20413,293 → 13,089AS8151AS8151 - UNINET, MX
-14517,537 → 17,392AS16509AMAZON-02 - Amazon.com, Inc., US
-141950 → 809AS136787PACKETHUBSA-AS-AP - PacketHub S.A., PA
-125351 → 226AS9294GNETINC-AS-AP - GNET INC., US
-115123 → 8AS30042ARIN-US-ASN-2 - Boerboel LLC, US
-1032,907 → 2,804AS7029WINDSTREAM - Windstream Communications LLC, US
-926,957 → 6,865AS12479UNI2-AS - Orange Espagne SA, ES

Top route additions and withdrawals by origin AS

Top added routes this week

PrefixesASNAS Description
563AS1540DNIC-ASBLK-01534-01546 - Headquarters, USAISC, US
480AS17561LCS-AS-AP - LARUS Limited, HK
175AS16509AMAZON-02 - Amazon.com, Inc., US
112AS53755IOFLOOD - Input Output Flood LLC, US
110AS272096AS272096 - PACKETHUB S.A., PA
100AS268188AS268188 - ATIVA TELECOM LTDA, BR
66AS9304HUTCHISON-AS-AP - HGC Global Communications Limited, HK
64AS140227HKCICL-AS-AP - Hong Kong Communications International Co., Limited, HK
53AS137951ASLINE-AS-AP - ASLINE LIMITED, HK
47AS136809FASTZONEIT-AS-AP - FAST ZONE IT, BD

Top withdrawn routes this week

PrefixesASNAS Description
-832AS17561LCS-AS-AP - LARUS Limited, HK
-452AS367DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD), US
-381AS398781OSL-188 - OCULUS NETWORKS INC, US
-320AS16509AMAZON-02 - Amazon.com, Inc., US
-229AS8151AS8151 - UNINET, MX
-148AS7029WINDSTREAM - Windstream Communications LLC, US
-142AS136787PACKETHUBSA-AS-AP - PacketHub S.A., PA
-126AS9294GNETINC-AS-AP - GNET INC., US
-115AS30042ARIN-US-ASN-2 - Boerboel LLC, US
-99AS174COGENT-174 - Cogent Communications, LLC, US

Prefix-length activity

When prefix-length detail is available, it helps show whether changes are concentrated in common operational sizes such as /24.

Prefix lengthAddedWithdrawn
/15+1-3
/16+33-26
/17+25-16
/18+24-16
/19+36-32
/20+123-88
/21+171-158
/22+449-502
/23+752-654
/24+5022-5473

Exact prefix diff from RIPE RIS rrc00

This section compares two full RIPE RIS rrc00 RIB snapshots. It is collector-scoped, but it gives an exact prefix-level view for that collector.

MetricValue
Old snapshot prefixes1,402,086
New snapshot prefixes1,404,219
Exact added prefixes9,118
Exact removed prefixes6,985
Origin-changed prefixes1,604

Sample of exact added prefixes

PrefixOrigin ASN / name
1.23.194.0/2445528 — TIKONAIN-AS - Tikona Infinet Ltd.
1.23.195.0/2445528 — TIKONAIN-AS - Tikona Infinet Ltd.
1.46.96.0/21132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.96.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.97.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.98.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.99.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.100.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.101.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.102.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.103.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.104.0/21132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.104.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.105.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.106.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.107.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.108.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.109.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.110.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.46.111.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.47.96.0/21132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.47.96.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.47.97.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.47.98.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited
1.47.99.0/24132618 — REALFUTURE-AS-AP - Real Future Company Limited

Sample of exact removed prefixes

PrefixPrevious origin ASN / name
1.22.24.0/2345528 — TIKONAIN-AS - Tikona Infinet Ltd.
1.23.176.0/2345528 — TIKONAIN-AS - Tikona Infinet Ltd.
1.55.104.0/2318403 — FPT-VN - FPT Telecom Company
2.16.58.0/2316625 — AKAMAI-AS - Akamai Technologies, Inc.
2.20.48.0/2434164 — AKAMAI-LON Akamai International B.V.
2.21.100.0/2216625 — AKAMAI-AS - Akamai Technologies, Inc.
2.23.93.0/2434164 — AKAMAI-LON Akamai International B.V.
2.26.255.0/24198550 — nodehost-as NODE HOST LIMITED
2.27.68.0/22219429 — Project TA Consulting & Services UG
2.27.87.0/24207461 — host-industry HOSTING INDUSTRY LIMITED
2.27.89.0/24207461 — host-industry HOSTING INDUSTRY LIMITED
2.27.91.0/24207461 — host-industry HOSTING INDUSTRY LIMITED
2.27.200.0/2120326 — TERASWITCH - TeraSwitch Networks Inc.
2.27.224.0/2120326 — TERASWITCH - TeraSwitch Networks Inc.
2.56.125.0/24209847 — THE WorkTitans B.V.
2.56.177.0/24209847 — THE WorkTitans B.V.
2.57.18.0/2440244 — TURNKEY-INTERNET - Turnkey Internet Inc.
2.59.62.0/2463023 — AS-GLOBALTELEHOST - GTHost
2.91.140.0/2425019 — SAUDINETSTC-AS Saudi Telecom Company JSC
2.91.142.0/2425019 — SAUDINETSTC-AS Saudi Telecom Company JSC
2.144.0.0/1644244 — IranCell-AS Iran Cell Service and Communication Company
2.144.0.0/1744244 — IranCell-AS Iran Cell Service and Communication Company
2.144.0.0/2144244 — IranCell-AS Iran Cell Service and Communication Company
2.144.0.0/2444244 — IranCell-AS Iran Cell Service and Communication Company
2.144.3.0/2444244 — IranCell-AS Iran Cell Service and Communication Company

Full local JSON diff file: /home/patero/bgp-table-watch/diffs/rrc00-prefix-diff-20260728-to-20260804-both.json

Important methodology note

This report uses public Potaroo/CIDR Report time-series and weekly per-origin-AS delta tables for the broad daily/weekly view. When a RIPE RIS prefix-diff file is available, the article also includes exact added/removed prefix samples from full MRT/RIB snapshot comparison.

The exact prefix-diff section is collector-scoped: it reflects RIPE RIS rrc00 visibility, not every possible global vantage point. That is still useful for a repeatable weekly BGP-change digest, but large operational conclusions should be checked against multiple collectors.

Why this matters

  • Capacity planning: routers, route reflectors and firewalls must handle the continuing growth of IPv4 and IPv6 tables.
  • Troubleshooting: sudden per-AS growth or withdrawal can point to deaggregation, leaks, migrations or visibility changes.
  • Internet operations: new ASNs and large route deltas show how the public Internet keeps changing every week.

Sources

Related reading

If you want a specific weekly view added to this report — for example top cloud ASNs, more-specifics, bogons, IPv6-only deltas or exact prefix diff tables — leave a comment.

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