[lacnog] Weekly Routing Table Report

Routing Analysis Role Account cscora en apnic.net
Vie Mayo 1 15:03:52 GMT+3 2020


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.

Daily listings are sent to bgp-stats en lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.

Routing Table Report   04:00 +10GMT Sat 02 May, 2020

Report Website:     http://thyme.rand.apnic.net
Detailed Analysis:  http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined:                              808187
    Prefixes after maximum aggregation (per Origin AS):          307501
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      395431
Total ASes present in the Internet Routing Table:                 67932
    Prefixes per ASN:                                             11.90
Origin-only ASes present in the Internet Routing Table:           58336
Origin ASes announcing only one prefix:                           24318
Transit ASes present in the Internet Routing Table:                9596
Transit-only ASes present in the Internet Routing Table:            308
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      50
    Max AS path prepend of ASN ( 22394)                              38
Prefixes from unregistered ASNs in the Routing Table:              1118
    Number of instances of unregistered ASNs:                      1120
Number of 32-bit ASNs allocated by the RIRs:                      31477
Number of 32-bit ASNs visible in the Routing Table:               26018
Prefixes from 32-bit ASNs in the Routing Table:                  120094
Number of bogon 32-bit ASNs visible in the Routing Table:            22
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              0
Number of addresses announced to Internet:                   2841688576
    Equivalent to 169 /8s, 96 /16s and 186 /24s
    Percentage of available address space announced:               76.8
    Percentage of allocated address space announced:               76.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:      600761

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                   212345
    Total APNIC prefixes after maximum aggregation:               62309
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:               0
    Unique aggregates announced from the APNIC address blocks:        0
APNIC Region origin ASes present in the Internet Routing Table:   10545
    APNIC Prefixes per ASN:                                        0.00
APNIC Region origin ASes announcing only one prefix:               2935
APNIC Region transit ASes present in the Internet Routing Table:   1578
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5615
Number of APNIC addresses announced to Internet:                      0
    Equivalent to 0 /8s, 0 /16s and 0 /24s
APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 64297-64395, 131072-141625
APNIC Address Blocks  

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                    236903
    Total ARIN prefixes after maximum aggregation:               108901
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:                0
    Unique aggregates announced from the ARIN address blocks:         0
ARIN Region origin ASes present in the Internet Routing Table:    18475
    ARIN Prefixes per ASN:                                         0.00
ARIN Region origin ASes announcing only one prefix:                6734
ARIN Region transit ASes present in the Internet Routing Table:    1909
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          42
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3222
Number of ARIN addresses announced to Internet:                       0
    Equivalent to 0 /8s, 0 /16s and 0 /24s
ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-399260
ARIN Address Blocks   

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                    229537
    Total RIPE prefixes after maximum aggregation:               106163
    RIPE Deaggregation factor:                                     2.16
Prefixes being announced from the RIPE address blocks:                0
    Unique aggregates announced from the RIPE address blocks:         0
RIPE Region origin ASes present in the Internet Routing Table:    27049
    RIPE Prefixes per ASN:                                         0.00
RIPE Region origin ASes announcing only one prefix:               11730
RIPE Region transit ASes present in the Internet Routing Table:    3833
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9137
Number of RIPE addresses announced to Internet:                       0
    Equivalent to 0 /8s, 0 /16s and 0 /24s
RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 64396-64495
                       196608-213403
RIPE Address Blocks   

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                  105959
    Total LACNIC prefixes after maximum aggregation:              24678
    LACNIC Deaggregation factor:                                   4.29
Prefixes being announced from the LACNIC address blocks:              0
    Unique aggregates announced from the LACNIC address blocks:       0
LACNIC Region origin ASes present in the Internet Routing Table:   9793
    LACNIC Prefixes per ASN:                                       0.00
LACNIC Region origin ASes announcing only one prefix:              2434
LACNIC Region transit ASes present in the Internet Routing Table:  1850
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        50
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7368
Number of LACNIC addresses announced to Internet:                     0
    Equivalent to 0 /8s, 0 /16s and 0 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-270748 + ERX transfers
LACNIC Address Blocks 

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                  22324
    Total AfriNIC prefixes after maximum aggregation:              4721
    AfriNIC Deaggregation factor:                                  4.73
Prefixes being announced from the AfriNIC address blocks:             0
    Unique aggregates announced from the AfriNIC address blocks:      0
AfriNIC Region origin ASes present in the Internet Routing Table:  1387
    AfriNIC Prefixes per ASN:                                      0.00
AfriNIC Region origin ASes announcing only one prefix:              485
AfriNIC Region transit ASes present in the Internet Routing Table:  269
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  676
Number of AfriNIC addresses announced to Internet:                    0
    Equivalent to 0 /8s, 0 /16s and 0 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks

APNIC Region per AS prefix count summary
----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7545        5444        686     635  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4739       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3409       1330      22  VIETEL-AS-AP Viettel Group, VN
 45899        2810       1765     152  VNPT-AS-VN VNPT Corp, VN
  7713        2709        830     512  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2561       9043      62  CMNET-GD Guangdong Mobile Communication
  4766        2267      11102     561  KIXS-AS-KR Korea Telecom, KR
  9498        2264        434     221  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2124        441     194  TATACOMM-AS TATA Communications formerl
  9394        2042       4914      20  CTTNET China TieTong Telecommunications

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 11492        4286        287     666  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        4017       7879    1786  AMAZON-02, US
 22773        3532       2968     149  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3364       1324      92  SHAW, CA
 16625        3053       1593    2185  AKAMAI-AS, US
   209        2406       5077     541  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2389        365      94  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2301       2981    1621  FRONTIER-FRTR, US
 26484        2194        137     175  IKGUL-26484, US

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 12479        5769       1603     138  UNI2-AS, ES
 31334        4768        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3409        193      22  ALJAWWALSTC-AS, SA
  8551        3201        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2968        454    2030  AKAMAI-ASN1, EU
 12389        2495       2251     725  ROSTELECOM-AS, RU
  9009        2166        228    1179  M247, GB
 34984        2052        350     559  TELLCOM-AS, TR
  9121        1901       1691      18  TTNET, TR
 13188        1606        100      36  TRIOLAN, UA

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151        6537       3317     598  Uninet S.A. de C.V., MX
 10620        3348        529     533  Telmex Colombia S.A., CO
 11830        2671        369      63  Instituto Costarricense de Electricidad
  6503        1689        327     387  Axtel, S.A.B. de C.V., MX
  7303        1552       1031     262  Telecom Argentina S.A., AR
 13999        1375        506     333  Mega Cable, S.A. de C.V., MX
 28573        1374       2242     203  CLARO S.A., BR
  6147        1145        379      39  Telefonica del Peru S.A.A., PE
  3816        1097        570     141  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         957        112      70  Alestra, S. de R.L. de C.V., MX

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 24863        1391        393      22  LINKdotNET-AS, EG
 24835        1106        574      25  RAYA-AS, EG
 36992        1091       1539      76  ETISALAT-MISR, EG
 36903         890        467      88  MT-MPLS, MA
 29571         600         68      12  ORANGE-COTE-IVOIRE, CI
  6713         561       1863      34  IAM-AS, MA
 37342         466         32       1  MOVITEL, MZ
 36935         407        522      44  Vodafone-, EG
 23889         365        231      15  MauritiusTelecom, MU
 15399         349         45      10  WANANCHI-, KE

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151        6537       3317     598  Uninet S.A. de C.V., MX
 12479        5769       1603     138  UNI2-AS, ES
  7545        5444        686     635  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4768        484      13  KABELDEUTSCHLAND-AS, DE
  4538        4739       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4286        287     666  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        4017       7879    1786  AMAZON-02, US
 22773        3532       2968     149  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3409       1330      22  VIETEL-AS-AP Viettel Group, VN

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
 12479        5769         5631  UNI2-AS, ES
  7545        5444         4809  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4768         4755  KABELDEUTSCHLAND-AS, DE
  4538        4739         4666  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4006  VIASAT-SP-BACKBONE, US
 11492        4286         3620  CABLEONE, US
  7552        3409         3387  VIETEL-AS-AP Viettel Group, VN
 39891        3409         3387  ALJAWWALSTC-AS, SA
 22773        3532         3383  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3364         3272  SHAW, CA

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24               174  COGENT-174, US
     62485  UNALLOCATED  8.23.229.0/24             3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     14109  UNALLOCATED  8.38.252.0/24             3356  LEVEL3, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
     26584  UNALLOCATED  8.42.62.0/23               209  CENTURYLINK-US-LEGACY-QWEST,
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, US

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

Complete listing at http://thyme.rand.apnic.net/current/data-dsua

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:9        /9:11      /10:38      /11:99      /12:286     
/13:577     /14:1168    /15:1917    /16:13366   /17:8219    /18:13618   
/19:25839   /20:40628   /21:48099   /22:100080  /23:82727   /24:470239  
/25:1267    /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

   ASN  No of nets  Total ann.  Description
 12479        5610        5769  UNI2-AS, ES
  8151        5146        6537  Uninet S.A. de C.V., MX
 31334        4757        4768  KABELDEUTSCHLAND-AS, DE
 11492        4040        4286  CABLEONE, US
  7155        3900        4034  VIASAT-SP-BACKBONE, US
 16509        3889        4017  AMAZON-02, US
  7545        3434        5444  TPG-INTERNET-AP TPG Telecom Limited, AU
 22773        3423        3532  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3409        3409  ALJAWWALSTC-AS, SA
  7552        3299        3409  VIETEL-AS-AP Viettel Group, VN

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

   1:1590      2:1155      3:30        4:19        5:3351      6:51     
   8:1408      9:1        11:1        12:1795     13:506      14:2289   
  15:75       16:9        17:296      18:81       20:84       23:3531   
  24:2265     25:2        27:2551     31:3101     32:104      34:3      
  35:43       36:922      37:3269     38:1965     39:391      40:124    
  41:3573     42:675      43:2115     44:202      45:14260    46:3703   
  47:286      49:1449     50:1419     51:91       52:1105     54:264    
  55:656      56:6        57:52       58:1768     59:1171     60:726    
  61:2278     62:2201     63:1980     64:5119     65:2297     66:4933   
  67:2831     68:1193     69:3844     70:1430     71:678      72:2891   
  74:2604     75:1434     76:682      77:2818     78:1870     79:2420   
  80:1910     81:1636     82:1267     83:1166     84:1205     85:2548   
  86:550      87:1704     88:1146     89:2753     90:314      91:7890   
  92:1502     93:2314     94:2665     95:3986     96:1141     97:333    
  98:933      99:976     100:87      101:970     102:891     103:23638  
 104:3456    105:379     106:808     107:1982    108:701     109:3667   
 110:1849    111:1998    112:1605    113:1392    114:1549    115:1829   
 116:1791    117:2081    118:2116    119:1729    120:820     121:1049   
 122:2437    123:1993    124:1570    125:2035    128:1348    129:1205   
 130:635     131:1831    132:765     133:300     134:1307    135:291    
 136:613     137:853     138:2157    139:992     140:644     141:942    
 142:910     143:1200    144:976     145:331     146:1494    147:1042   
 148:2100    149:1179    150:859     151:1299    152:1493    153:383    
 154:4739    155:1050    156:3392    157:1102    158:833     159:1972   
 160:1924    161:1042    162:3054    163:855     164:1453    165:1284   
 166:532     167:1631    168:3459    169:527     170:4207    171:769    
 172:1929    173:2526    174:1007    175:1018    176:2625    177:4213   
 178:3049    179:1514    180:2319    181:2526    182:3082    183:1127   
 184:2415    185:16404   186:3754    187:2728    188:4106    189:2278   
 190:8620    191:1433    192:10367   193:7469    194:6113    195:4392   
 196:3209    197:1874    198:6088    199:5968    200:7213    201:5208   
 202:10508   203:10189   204:4530    205:3096    206:3238    207:3296   
 208:4044    209:4430    210:4004    211:2015    212:3329    213:3077   
 214:1167    215:61      216:5969    217:2407    218:899     219:611    
 220:2035    221:915     222:1007    223:1467   

End of report


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