IP.CC
搜索
IP地址详细信息
AS131476
10/50 Market St·
IP地址详细信息
AS131476
10/50 Market St·
  • 摘要 IP.CC
  • 前缀
  • 同行
  • 上游
  • 下游
  • 世界地图
  • WHOIS详细信息
  • IX

摘要

  • ASN编号
    AS131476
  • 组织名称
    10/50 Market St
  • 国家
    Australia
  • 国家编码
    AU
  • 站点
  • 区域登记
    APNIC
  • 分配日期
  • 分配状态
    Allocated
  • Ipv4前缀
    12
  • Ipv6前缀
    0
  • Ipv4同行
    6
  • Ipv6同行
    0
  • Ipv4上游
    5
  • Ipv6上游
    0

前缀

此 ASN 有 12 个 IPv4 前缀。

国家
公布的前缀
描述
父前缀
RIR
Australia103.4.236.0/24
10/50 Market St
103.4.236.0/22APNIC
Australia103.4.237.0/24
10/50 Market St
103.4.236.0/22APNIC
Australia103.4.238.0/24
10/50 Market St
103.4.236.0/22APNIC
Australia103.4.239.0/24
10/50 Market St
103.4.236.0/22APNIC
163.61.84.0/24
--
Australia202.81.4.0/24
Fusion Broadband Pty Ltd
202.81.4.0/22APNIC
Australia202.81.5.0/24
Fusion Broadband Pty Ltd
202.81.4.0/22APNIC
Australia202.81.6.0/24
Fusion Broadband Pty Ltd
202.81.4.0/22APNIC
Australia202.81.7.0/24
Fusion Broadband Pty Ltd
202.81.4.0/22APNIC
Australia43.245.169.0/24
FusionBB-AU
43.245.168.0/22APNIC
Australia43.245.170.0/24
Fusion Broadband Pty Ltd
43.245.168.0/22APNIC
Australia43.245.171.0/24
Fusion Broadband Pty Ltd
43.245.168.0/22APNIC
  • 1
IP范围API
使用IP信息强大的IP范围 API获取这些数据和更多信息-快速轻松地识别公司拥有的IP范围。
有用的 游戏技术, 和 广告技术
IP范围API
使用IP信息强大的IP范围 API获取这些数据和更多信息-快速轻松地识别公司拥有的IP范围。
有用的 游戏技术, 和 广告技术

同行

此 ASN 有 6 个 IPv4 对等点。

国家
ASN
描述
IPv6
AustraliaAS136557
Host Universal Pty Ltd
true
AustraliaAS151603
D-Link Australia Pty Ltd
true
NetherlandsAS15830
Equinix (EMEA) Acquisition Enterprises B.V.
true
AustraliaAS38195
Superloop
true
AustraliaAS4764
Aussie Broadband
true
United StatesAS6939
Hurricane Electric LLC
true
  • 1
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全

上游

此 ASN 有 5 个 IPv4 上游。

国家
ASN
描述
IPv6
AustraliaAS136557
Host Universal Pty Ltd
true
NetherlandsAS15830
Equinix (EMEA) Acquisition Enterprises B.V.
true
AustraliaAS38195
Superloop
true
AustraliaAS4764
Aussie Broadband
true
United StatesAS6939
Hurricane Electric LLC
true
  • 1
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全

下游

此 ASN 有 1 个 IPv4 下游。

国家
ASN
描述
IPv6
AustraliaAS151603
D-Link Australia Pty Ltd
true
  • 1
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全

AS131476 Combined Upstream Graph AS131476 AS131476 AS4764 AS4764 AS131476->AS4764 AS17819 AS17819 AS131476->AS17819 AS38195 AS38195 AS131476->AS38195 AS3356 AS3356 AS4764->AS3356 AS15830 AS15830 AS17819->AS15830 AS38195->AS3356 AS1299 AS1299 AS38195->AS1299 AS3491 AS3491 AS38195->AS3491 AS6461 AS6461 AS38195->AS6461 AS174 AS174 AS38195->AS174 AS3549 AS3549 AS3356->AS3549 AS209 AS209 AS3356->AS209 AS15830->AS38195 AS4826 AS4826 AS15830->AS4826 AS2497 AS2497 AS4826->AS2497 AS3257 AS3257 AS4826->AS3257 AS5511 AS5511 AS4826->AS5511 AS1299->AS3257 AS3491->AS2497 AS2914 AS2914 AS3491->AS2914 AS7018 AS7018 AS6461->AS7018 AS1239 AS1239 AS6461->AS1239
AS131476 Combined Upstream Graph AS131476 AS131476 AS4764 AS4764 AS131476->AS4764 AS17819 AS17819 AS131476->AS17819 AS38195 AS38195 AS131476->AS38195 AS3356 AS3356 AS4764->AS3356 AS15830 AS15830 AS17819->AS15830 AS38195->AS3356 AS1299 AS1299 AS38195->AS1299 AS3491 AS3491 AS38195->AS3491 AS6461 AS6461 AS38195->AS6461 AS174 AS174 AS38195->AS174 AS3549 AS3549 AS3356->AS3549 AS209 AS209 AS3356->AS209 AS15830->AS38195 AS4826 AS4826 AS15830->AS4826 AS2497 AS2497 AS4826->AS2497 AS3257 AS3257 AS4826->AS3257 AS5511 AS5511 AS4826->AS5511 AS1299->AS3257 AS3491->AS2497 AS2914 AS2914 AS3491->AS2914 AS7018 AS7018 AS6461->AS7018 AS1239 AS1239 AS6461->AS1239

世界地图

WHOIS详细信息


% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS131476'

% Abuse contact for 'AS131476' is '[email protected]'

aut-num: AS131476
as-name: FUSIONBB-AU
descr: 10/50 Market St
country: AU
org: ORG-FBPL1-AP
admin-c: FBPL1-AP
tech-c: FBPL1-AP
abuse-c: AF535-AP
mnt-lower: MAINT-FUSIONBB-AU
mnt-routes: MAINT-FUSIONBB-AU
mnt-by: APNIC-HM
mnt-irt: IRT-FUSIONBB-AU
last-modified: 2020-07-29T13:13:18Z
source: APNIC

irt: IRT-FUSIONBB-AU
address: PO Box 2003, kew Victoria
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
auth: # Filtered
remarks: [email protected] was validated on 2025-03-12
remarks: [email protected] was validated on 2025-03-18
mnt-by: MAINT-FUSIONBB-AU
last-modified: 2025-03-18T20:23:34Z
source: APNIC

organisation: ORG-FBPL1-AP
org-name: Fusion Broadband Pty Ltd
org-type: LIR
country: AU
address: Suite 8 Level 1
address: 119-125 Ocean Beach Road
phone: +61405685419
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:15:51Z
source: APNIC

role: ABUSE FUSIONBBAU
country: ZZ
address: PO Box 2003, kew Victoria
phone: +000000000
e-mail: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
nic-hdl: AF535-AP
remarks: Generated from irt object IRT-FUSIONBB-AU
remarks: [email protected] was validated on 2025-03-12
remarks: [email protected] was validated on 2025-03-18
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-03-18T20:23:48Z
source: APNIC

role: FUSION BROADBAND PTY LTD - network administrator
address: PO Box 2003, kew Victoria
country: AU
phone: +61 1300553526
fax-no: +61 1300553526
e-mail: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
nic-hdl: FBPL1-AP
mnt-by: MAINT-FUSIONBB-AU
last-modified: 2011-07-18T23:09:26Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)




% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS131476'

% Abuse contact for 'AS131476' is '[email protected]'

aut-num: AS131476
as-name: FUSIONBB-AU
descr: 10/50 Market St
country: AU
org: ORG-FBPL1-AP
admin-c: FBPL1-AP
tech-c: FBPL1-AP
abuse-c: AF535-AP
mnt-lower: MAINT-FUSIONBB-AU
mnt-routes: MAINT-FUSIONBB-AU
mnt-by: APNIC-HM
mnt-irt: IRT-FUSIONBB-AU
last-modified: 2020-07-29T13:13:18Z
source: APNIC

irt: IRT-FUSIONBB-AU
address: PO Box 2003, kew Victoria
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
auth: # Filtered
remarks: [email protected] was validated on 2025-03-12
remarks: [email protected] was validated on 2025-03-18
mnt-by: MAINT-FUSIONBB-AU
last-modified: 2025-03-18T20:23:34Z
source: APNIC

organisation: ORG-FBPL1-AP
org-name: Fusion Broadband Pty Ltd
org-type: LIR
country: AU
address: Suite 8 Level 1
address: 119-125 Ocean Beach Road
phone: +61405685419
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:15:51Z
source: APNIC

role: ABUSE FUSIONBBAU
country: ZZ
address: PO Box 2003, kew Victoria
phone: +000000000
e-mail: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
nic-hdl: AF535-AP
remarks: Generated from irt object IRT-FUSIONBB-AU
remarks: [email protected] was validated on 2025-03-12
remarks: [email protected] was validated on 2025-03-18
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-03-18T20:23:48Z
source: APNIC

role: FUSION BROADBAND PTY LTD - network administrator
address: PO Box 2003, kew Victoria
country: AU
phone: +61 1300553526
fax-no: +61 1300553526
e-mail: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
nic-hdl: FBPL1-AP
mnt-by: MAINT-FUSIONBB-AU
last-modified: 2011-07-18T23:09:26Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)



IX

国家
IX
IPv4
IPv6
端口速度
暂无数据
  • 1
国家
IX
IPv4
IPv6
端口速度
暂无数据
  • 1
IP.CC
搜索
IP地址详细信息
AS131476
10/50 Market St·
IP地址详细信息
AS131476
10/50 Market St·

摘要

  • ASN编号
    AS131476
  • 组织名称
    10/50 Market St
  • 国家
    Australia
  • 国家编码
    AU
  • 站点
  • 区域登记
    APNIC
  • 分配日期
  • 分配状态
    Allocated
  • Ipv4前缀
    12
  • Ipv6前缀
    0
  • Ipv4同行
    6
  • Ipv6同行
    0
  • Ipv4上游
    5
  • Ipv6上游
    0

前缀

此 ASN 有 12 个 IPv4 前缀。

国家
公布的前缀
描述
父前缀
RIR
Australia103.4.236.0/24
10/50 Market St
103.4.236.0/22APNIC
Australia103.4.237.0/24
10/50 Market St
103.4.236.0/22APNIC
Australia103.4.238.0/24
10/50 Market St
103.4.236.0/22APNIC
Australia103.4.239.0/24
10/50 Market St
103.4.236.0/22APNIC
163.61.84.0/24
--
Australia202.81.4.0/24
Fusion Broadband Pty Ltd
202.81.4.0/22APNIC
Australia202.81.5.0/24
Fusion Broadband Pty Ltd
202.81.4.0/22APNIC
Australia202.81.6.0/24
Fusion Broadband Pty Ltd
202.81.4.0/22APNIC
Australia202.81.7.0/24
Fusion Broadband Pty Ltd
202.81.4.0/22APNIC
Australia43.245.169.0/24
FusionBB-AU
43.245.168.0/22APNIC
Australia43.245.170.0/24
Fusion Broadband Pty Ltd
43.245.168.0/22APNIC
Australia43.245.171.0/24
Fusion Broadband Pty Ltd
43.245.168.0/22APNIC
  • 1
IP范围API
使用IP信息强大的IP范围 API获取这些数据和更多信息-快速轻松地识别公司拥有的IP范围。
有用的 游戏技术, 和 广告技术
IP范围API
使用IP信息强大的IP范围 API获取这些数据和更多信息-快速轻松地识别公司拥有的IP范围。
有用的 游戏技术, 和 广告技术

同行

此 ASN 有 6 个 IPv4 对等点。

国家
ASN
描述
IPv6
AustraliaAS136557
Host Universal Pty Ltd
true
AustraliaAS151603
D-Link Australia Pty Ltd
true
NetherlandsAS15830
Equinix (EMEA) Acquisition Enterprises B.V.
true
AustraliaAS38195
Superloop
true
AustraliaAS4764
Aussie Broadband
true
United StatesAS6939
Hurricane Electric LLC
true
  • 1
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全

上游

此 ASN 有 5 个 IPv4 上游。

国家
ASN
描述
IPv6
AustraliaAS136557
Host Universal Pty Ltd
true
NetherlandsAS15830
Equinix (EMEA) Acquisition Enterprises B.V.
true
AustraliaAS38195
Superloop
true
AustraliaAS4764
Aussie Broadband
true
United StatesAS6939
Hurricane Electric LLC
true
  • 1
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全

下游

此 ASN 有 1 个 IPv4 下游。

国家
ASN
描述
IPv6
AustraliaAS151603
D-Link Australia Pty Ltd
true
  • 1
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全
ASN 数据
每个IP地址和每个ASN相关域的ASN详细信息、分配日期、注册表名称、IP地址总数和分配的前缀。
有用的 网络安全

AS131476 Combined Upstream Graph AS131476 AS131476 AS4764 AS4764 AS131476->AS4764 AS17819 AS17819 AS131476->AS17819 AS38195 AS38195 AS131476->AS38195 AS3356 AS3356 AS4764->AS3356 AS15830 AS15830 AS17819->AS15830 AS38195->AS3356 AS1299 AS1299 AS38195->AS1299 AS3491 AS3491 AS38195->AS3491 AS6461 AS6461 AS38195->AS6461 AS174 AS174 AS38195->AS174 AS3549 AS3549 AS3356->AS3549 AS209 AS209 AS3356->AS209 AS15830->AS38195 AS4826 AS4826 AS15830->AS4826 AS2497 AS2497 AS4826->AS2497 AS3257 AS3257 AS4826->AS3257 AS5511 AS5511 AS4826->AS5511 AS1299->AS3257 AS3491->AS2497 AS2914 AS2914 AS3491->AS2914 AS7018 AS7018 AS6461->AS7018 AS1239 AS1239 AS6461->AS1239
AS131476 Combined Upstream Graph AS131476 AS131476 AS4764 AS4764 AS131476->AS4764 AS17819 AS17819 AS131476->AS17819 AS38195 AS38195 AS131476->AS38195 AS3356 AS3356 AS4764->AS3356 AS15830 AS15830 AS17819->AS15830 AS38195->AS3356 AS1299 AS1299 AS38195->AS1299 AS3491 AS3491 AS38195->AS3491 AS6461 AS6461 AS38195->AS6461 AS174 AS174 AS38195->AS174 AS3549 AS3549 AS3356->AS3549 AS209 AS209 AS3356->AS209 AS15830->AS38195 AS4826 AS4826 AS15830->AS4826 AS2497 AS2497 AS4826->AS2497 AS3257 AS3257 AS4826->AS3257 AS5511 AS5511 AS4826->AS5511 AS1299->AS3257 AS3491->AS2497 AS2914 AS2914 AS3491->AS2914 AS7018 AS7018 AS6461->AS7018 AS1239 AS1239 AS6461->AS1239

世界地图

WHOIS详细信息


% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS131476'

% Abuse contact for 'AS131476' is '[email protected]'

aut-num: AS131476
as-name: FUSIONBB-AU
descr: 10/50 Market St
country: AU
org: ORG-FBPL1-AP
admin-c: FBPL1-AP
tech-c: FBPL1-AP
abuse-c: AF535-AP
mnt-lower: MAINT-FUSIONBB-AU
mnt-routes: MAINT-FUSIONBB-AU
mnt-by: APNIC-HM
mnt-irt: IRT-FUSIONBB-AU
last-modified: 2020-07-29T13:13:18Z
source: APNIC

irt: IRT-FUSIONBB-AU
address: PO Box 2003, kew Victoria
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
auth: # Filtered
remarks: [email protected] was validated on 2025-03-12
remarks: [email protected] was validated on 2025-03-18
mnt-by: MAINT-FUSIONBB-AU
last-modified: 2025-03-18T20:23:34Z
source: APNIC

organisation: ORG-FBPL1-AP
org-name: Fusion Broadband Pty Ltd
org-type: LIR
country: AU
address: Suite 8 Level 1
address: 119-125 Ocean Beach Road
phone: +61405685419
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:15:51Z
source: APNIC

role: ABUSE FUSIONBBAU
country: ZZ
address: PO Box 2003, kew Victoria
phone: +000000000
e-mail: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
nic-hdl: AF535-AP
remarks: Generated from irt object IRT-FUSIONBB-AU
remarks: [email protected] was validated on 2025-03-12
remarks: [email protected] was validated on 2025-03-18
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-03-18T20:23:48Z
source: APNIC

role: FUSION BROADBAND PTY LTD - network administrator
address: PO Box 2003, kew Victoria
country: AU
phone: +61 1300553526
fax-no: +61 1300553526
e-mail: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
nic-hdl: FBPL1-AP
mnt-by: MAINT-FUSIONBB-AU
last-modified: 2011-07-18T23:09:26Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)




% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS131476'

% Abuse contact for 'AS131476' is '[email protected]'

aut-num: AS131476
as-name: FUSIONBB-AU
descr: 10/50 Market St
country: AU
org: ORG-FBPL1-AP
admin-c: FBPL1-AP
tech-c: FBPL1-AP
abuse-c: AF535-AP
mnt-lower: MAINT-FUSIONBB-AU
mnt-routes: MAINT-FUSIONBB-AU
mnt-by: APNIC-HM
mnt-irt: IRT-FUSIONBB-AU
last-modified: 2020-07-29T13:13:18Z
source: APNIC

irt: IRT-FUSIONBB-AU
address: PO Box 2003, kew Victoria
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
auth: # Filtered
remarks: [email protected] was validated on 2025-03-12
remarks: [email protected] was validated on 2025-03-18
mnt-by: MAINT-FUSIONBB-AU
last-modified: 2025-03-18T20:23:34Z
source: APNIC

organisation: ORG-FBPL1-AP
org-name: Fusion Broadband Pty Ltd
org-type: LIR
country: AU
address: Suite 8 Level 1
address: 119-125 Ocean Beach Road
phone: +61405685419
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:15:51Z
source: APNIC

role: ABUSE FUSIONBBAU
country: ZZ
address: PO Box 2003, kew Victoria
phone: +000000000
e-mail: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
nic-hdl: AF535-AP
remarks: Generated from irt object IRT-FUSIONBB-AU
remarks: [email protected] was validated on 2025-03-12
remarks: [email protected] was validated on 2025-03-18
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-03-18T20:23:48Z
source: APNIC

role: FUSION BROADBAND PTY LTD - network administrator
address: PO Box 2003, kew Victoria
country: AU
phone: +61 1300553526
fax-no: +61 1300553526
e-mail: [email protected]
admin-c: FBPL1-AP
tech-c: FBPL1-AP
nic-hdl: FBPL1-AP
mnt-by: MAINT-FUSIONBB-AU
last-modified: 2011-07-18T23:09:26Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)



IX

国家
IX
IPv4
IPv6
端口速度
暂无数据
  • 1
国家
IX
IPv4
IPv6
端口速度
暂无数据
  • 1
相关网络
  • AS131474
    Sajid Trading Ltd.
  • AS131475
    Singapore Institute of Technology
  • AS131477
    APNIC 32-bit ASN block
  • AS399910
    SipNav LLC
  • AS399911
    Salem-Keizer Public Schools
  • AS399912
    Hayo Telecom, Inc
  • AS399913
    Advanced Logic Industries, Inc
  • AS399914
    N-LAB
什么是ASN?
自治系统号(ASN)被分配给控制IP地址块的实体,如互联网服务提供商和其他大型组织。此网络页面以及显示在主IP地址信息页面上并在地理位置API中返回的组织字段基于ASN。
IP.CC

API,建立在安全、网络个性化、营销等方面

对于金融服务业和金融科技公司,IP。CC是一个非常宝贵的工具。我们在金融行业的客户喜欢我们的工作,我们很高兴向您展示原因。
IP.CC

我们的IP工具

探索所有工具IP.CC
  • IP.CCPing

    Ping是一个免费工具,可以帮助您找到可以使用ICMP协议Ping的IP地址。您可以查找IP地址或CIDR块。

    尝试 PingIP.CC
  • IP.CCDNS

    DNS是一种用于确定与IP地址关联的主机名的技术。这是在主机名注册表和注册器表中搜索PTR记录完成的。

    尝试 DNSIP.CC
  • IP.CCPort

    Port是一个免费工具,用于检测设备上的开放端口。它会自动检测IP地址并扫描您的设备,识别黑客通过的开放和易受攻击的端口。

    尝试 PortIP.CC
常见问题