IP Tracker

AS4837

China Unicom Backbone

CNCarrier2026-08-05

Announced prefixes 1000+

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Snapshot history

DateNameCountryClassPrefixes
2026-11-11China Unicom BackboneCNCarrier2171
2026-11-10China Unicom BackboneCNCarrier2171
2026-11-09China Unicom BackboneCNCarrier2170
2026-11-08China Unicom BackboneCNCarrier2170
2026-11-07China Unicom BackboneCNCarrier2170
2026-11-06China Unicom BackboneCNCarrier2167
2026-11-05China Unicom BackboneCNCarrier2167
2026-11-04China Unicom BackboneCNCarrier2166
2026-11-03China Unicom BackboneCNCarrier2172
2026-11-02China Unicom BackboneCNCarrier2172
2026-11-01China Unicom BackboneCNCarrier2172
2026-10-31China Unicom BackboneCNCarrier2172
2026-10-30China Unicom BackboneCNCarrier2172
2026-10-29China Unicom BackboneCNCarrier2172
2026-10-28China Unicom BackboneCNCarrier2172
2026-10-27China Unicom BackboneCNCarrier2172
2026-10-26China Unicom BackboneCNCarrier2172
2026-10-25China Unicom BackboneCNCarrier2172
2026-10-24China Unicom BackboneCNCarrier2172
2026-10-23China Unicom BackboneCNCarrier2172
2026-10-22China Unicom BackboneCNCarrier2171
2026-10-21China Unicom BackboneCNCarrier2171
2026-10-20China Unicom BackboneCNCarrier2168
2026-10-19China Unicom BackboneCNCarrier2170
2026-10-18China Unicom BackboneCNCarrier2170
2026-10-17China Unicom BackboneCNCarrier2170
2026-10-16China Unicom BackboneCNCarrier2167
2026-10-15China Unicom BackboneCNCarrier2167
2026-10-14China Unicom BackboneCNCarrier2165
2026-10-13China Unicom BackboneCNCarrier2164
2026-10-12China Unicom BackboneCNCarrier2164
2026-10-11China Unicom BackboneCNCarrier2164
2026-10-10China Unicom BackboneCNCarrier2165
2026-10-09China Unicom BackboneCNCarrier2165
2026-10-08China Unicom BackboneCNCarrier2167
2026-10-07China Unicom BackboneCNCarrier2167
2026-10-06China Unicom BackboneCNCarrier2167
2026-10-05China Unicom BackboneCNCarrier2166
2026-10-04China Unicom BackboneCNCarrier2166
2026-10-03China Unicom BackboneCNCarrier2167
2026-10-02China Unicom BackboneCNCarrier2167
2026-10-01China Unicom BackboneCNCarrier2167
2026-09-30China Unicom BackboneCNCarrier2167
2026-09-29China Unicom BackboneCNCarrier2167
2026-09-28China Unicom BackboneCNCarrier2168
2026-09-27China Unicom BackboneCNCarrier2168
2026-09-26China Unicom BackboneCNCarrier2168
2026-09-25China Unicom BackboneCNCarrier2168
2026-09-24China Unicom BackboneCNCarrier2167
2026-09-23China Unicom BackboneCNCarrier2167
2026-09-22China Unicom BackboneCNCarrier2171
2026-09-21China Unicom BackboneCNCarrier2171
2026-09-20China Unicom BackboneCNCarrier2170
2026-09-19China Unicom BackboneCNCarrier2170
2026-09-18China Unicom BackboneCNCarrier2170
2026-09-17China Unicom BackboneCNCarrier2170
2026-09-16China Unicom BackboneCNCarrier2170
2026-09-15China Unicom BackboneCNCarrier2170
2026-09-14China Unicom BackboneCNCarrier2170
2026-09-13China Unicom BackboneCNCarrier2170
2026-09-12China Unicom BackboneCNCarrier2170
2026-09-11China Unicom BackboneCNCarrier2170
2026-09-10China Unicom BackboneCNCarrier2164
2026-09-09China Unicom BackboneCNCarrier2164
2026-09-08China Unicom BackboneCNCarrier2164
2026-09-07China Unicom BackboneCNCarrier2164
2026-09-06China Unicom BackboneCNCarrier2164
2026-09-05China Unicom BackboneCNCarrier2164
2026-09-04China Unicom BackboneCNCarrier2157
2026-09-03China Unicom BackboneCNCarrier2158
2026-09-02China Unicom BackboneCNCarrier2154
2026-09-01China Unicom BackboneCNCarrier2137
2026-08-31China Unicom BackboneCNCarrier2132
2026-08-30China Unicom BackboneCNCarrier2133
2026-08-29China Unicom BackboneCNCarrier2133
2026-08-28China Unicom BackboneCNCarrier2133
2026-08-27China Unicom BackboneCNCarrier2124
2026-08-26China Unicom BackboneCNCarrier2113
2026-08-25China Unicom BackboneCNCarrier2111
2026-08-24China Unicom BackboneCNCarrier2090
2026-08-23China Unicom BackboneCNCarrier2090
2026-08-22China Unicom BackboneCNCarrier2090
2026-08-21China Unicom BackboneCNCarrier2017
2026-08-20China Unicom BackboneCNCarrier2015
2026-08-19China Unicom BackboneCNCarrier2005
2026-08-18China Unicom BackboneCNCarrier1969
2026-08-17China Unicom BackboneCNCarrier1946
2026-08-16China Unicom BackboneCNCarrier1946
2026-08-15China Unicom BackboneCNCarrier1946
2026-08-14China Unicom BackboneCNCarrier1945
2026-08-13China Unicom BackboneCNCarrier1928
2026-08-12China Unicom BackboneCNCarrier1906
2026-08-11China Unicom BackboneCNCarrier1892
2026-08-10China Unicom BackboneCNCarrier1881
2026-08-09China Unicom BackboneCNCarrier1881
2026-08-08China Unicom BackboneCNCarrier1881
2026-08-07China Unicom BackboneCNCarrier1815
2026-08-06China Unicom BackboneCNCarrier1709
2026-08-05China Unicom BackboneCNCarrier1683
2026-08-04China Unicom BackboneCNCarrier1673
2026-08-03China Unicom BackboneCNCarrier1664
2026-08-02China Unicom BackboneCNCarrier1663
2026-08-01China Unicom BackboneCNCarrier1663
2026-07-31China Unicom BackboneCNCarrier1663
2026-07-30China Unicom BackboneCNCarrier1663
2026-07-29China Unicom BackboneCNCarrier1663
2026-07-28China Unicom BackboneCNCarrier1656
2026-07-27China Unicom BackboneCNCarrier1653
2026-07-26China Unicom BackboneCNCarrier1653
2026-07-25China Unicom BackboneCNCarrier1653
2026-07-24China Unicom BackboneCNCarrier1652
2026-07-23China Unicom BackboneCNCarrier1629
2026-07-22China Unicom BackboneCNCarrier1629
2026-07-21China Unicom BackboneCNCarrier1629
2026-07-20China Unicom BackboneCNCarrier1626
2026-07-19China Unicom BackboneCNCarrier1626
2026-07-18China Unicom BackboneCNCarrier1626
2026-07-17China Unicom BackboneCNCarrier1622
2026-07-16China Unicom BackboneCNCarrier1582
2026-07-15China Unicom BackboneCNCarrier1574
2026-07-14China Unicom BackboneCNCarrier1570
2026-07-13China Unicom BackboneCNCarrier1570
2026-07-12China Unicom BackboneCNCarrier1569
2026-07-11China Unicom BackboneCNCarrier1569
2026-07-10China Unicom BackboneCNCarrier1561
2026-07-09China Unicom BackboneCNCarrier1560
2026-07-08China Unicom BackboneCNCarrier1560
2026-07-07China Unicom BackboneCNCarrier1560
2026-07-06China Unicom BackboneCNCarrier1561
2026-07-05China Unicom BackboneCNCarrier1561
2026-07-04China Unicom BackboneCNCarrier1561
2026-07-03China Unicom BackboneCNCarrier1561
2026-07-02China Unicom BackboneCNCarrier1562
2026-07-01China Unicom BackboneCNCarrier1558
2026-06-30China Unicom BackboneCNCarrier1558
2026-06-29China Unicom BackboneCNCarrier1558
2026-06-28China Unicom BackboneCNCarrier1558
2026-06-27China Unicom BackboneCNCarrier1558
2026-06-26China Unicom BackboneCNCarrier1558
2026-06-25China Unicom BackboneCNCarrier1559
2026-06-24China Unicom BackboneCNCarrier1559
2026-06-23China Unicom BackboneCNCarrier1560
2026-06-22China Unicom BackboneCNCarrier1560
2026-06-21China Unicom BackboneCNCarrier1560
2026-06-20China Unicom BackboneCNCarrier1560
2026-06-19China Unicom BackboneCNCarrier1560
2026-06-18China Unicom BackboneCNCarrier1558
2026-06-17China Unicom BackboneCNCarrier1558
2026-06-16China Unicom BackboneCNCarrier1557
2026-06-15China Unicom BackboneCNCarrier1557
2026-06-14China Unicom BackboneCNCarrier1558
2026-06-13China Unicom BackboneCNCarrier1558

IP-block changes

Open full filtered history →
ObservedBlockActionPrevious originsNew origins
2026-11-10221.214.140.0/24Acquired—AS4837
2026-11-0742.228.50.0/24Acquired—AS4837
2026-11-0761.53.71.0/24Acquired—AS4837
2026-11-0761.163.245.0/24Acquired—AS4837
2026-11-05119.187.151.0/24Acquired—AS4837
2026-11-04103.45.160.0/24ReleasedAS4837—
2026-11-04103.45.161.0/24ReleasedAS4837—
2026-11-04103.45.162.0/23ReleasedAS4837—
2026-11-04103.239.246.0/24ReleasedAS4837—
2026-11-04103.239.247.0/24ReleasedAS4837—
2026-11-04218.28.2.0/24ReleasedAS4837—
2026-11-0343.248.192.0/20ReleasedAS4837—
2026-11-0343.248.200.0/22ReleasedAS4837—
2026-11-03103.45.162.0/23AcquiredAS56046AS4837
2026-11-03103.239.247.0/24AcquiredAS56046AS4837
2026-10-2361.179.119.0/24Acquired—AS4837
2026-10-21112.233.156.0/24ReleasedAS4837—
2026-10-21123.129.17.0/24Acquired—AS4837
2026-10-21123.233.156.0/24Acquired—AS4837
2026-10-21218.59.240.0/24Acquired—AS4837
2026-10-21218.59.243.0/24Acquired—AS4837
2026-10-20118.88.64.0/18ReleasedAS4837—
2026-10-20118.88.128.0/17ReleasedAS4837—
2026-10-17112.231.96.0/24Acquired—AS4837
2026-10-17112.233.156.0/24Acquired—AS4837
2026-10-172408:8614:430::/48Acquired—AS4837
2026-10-15123.108.89.0/24ReleasedAS4837, AS55996AS55996
2026-10-15123.234.129.0/24Acquired—AS4837
2026-10-15221.0.78.0/24Acquired—AS4837
2026-10-15221.2.83.0/24Acquired—AS4837
2026-10-14123.108.89.0/24AcquiredAS55996AS4837, AS55996
2026-10-112402:18a0::/32ReleasedAS4837—
2026-10-0943.248.184.0/21ReleasedAS4837AS56046
2026-10-09103.205.252.0/22ReleasedAS4837, AS63567AS63567
2026-10-0743.248.184.0/21Origin set changedAS4837, AS63567AS4837
2026-10-06103.205.252.0/22AcquiredAS63567AS4837, AS63567
2026-10-0543.248.184.0/21Origin set changedAS4837AS4837, AS63567
2026-10-0443.248.184.0/21Origin set changedAS4837, AS63567AS4837
2026-10-04103.205.252.0/22ReleasedAS4837, AS63567AS63567
2026-10-0243.248.184.0/21Origin set changedAS4837AS4837, AS63567
2026-09-2943.248.184.0/21Origin set changedAS4837, AS63567AS4837
2026-09-29114.28.134.0/24ReleasedAS4837—
2026-09-2643.248.184.0/21Origin set changedAS4837AS4837, AS63567
2026-09-25103.239.246.0/24AcquiredAS56046AS4837
2026-09-2443.248.184.0/21Origin set changedAS4837, AS63567AS4837
2026-09-24103.45.160.0/24AcquiredAS56046AS4837
2026-09-24103.45.161.0/24AcquiredAS56046AS4837
2026-09-24103.45.162.0/23ReleasedAS4837AS56046
2026-09-24103.239.244.0/23ReleasedAS4837, AS63567AS63567
2026-09-2342.228.6.0/24Acquired—AS4837
Changes page 1Older changes →