[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 8 18:03:39 UTC 2021


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 at lists.apnic.net

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

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

Routing Table Report   04:00 +10GMT Sat 09 Jan, 2021

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

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

BGP routing table entries examined:                              835914
    Prefixes after maximum aggregation (per Origin AS):          320620
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      400305
Total ASes present in the Internet Routing Table:                 70275
    Prefixes per ASN:                                             11.89
Origin-only ASes present in the Internet Routing Table:           60448
Origin ASes announcing only one prefix:                           25023
Transit ASes present in the Internet Routing Table:                9827
Transit-only ASes present in the Internet Routing Table:            296
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                     203
    Max AS path prepend of ASN (396896)                             200
Prefixes from unregistered ASNs in the Routing Table:              1015
    Number of instances of unregistered ASNs:                      1018
Number of 32-bit ASNs allocated by the RIRs:                      34613
Number of 32-bit ASNs visible in the Routing Table:               28766
Prefixes from 32-bit ASNs in the Routing Table:                  132847
Number of bogon 32-bit ASNs visible in the Routing Table:            15
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            501
Number of addresses announced to Internet:                   2864181632
    Equivalent to 170 /8s, 183 /16s and 241 /24s
    Percentage of available address space announced:               77.4
    Percentage of allocated address space announced:               77.4
    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:      284376

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

Prefixes being announced by APNIC Region ASes:                   218915
    Total APNIC prefixes after maximum aggregation:               64842
    APNIC Deaggregation factor:                                    3.38
Prefixes being announced from the APNIC address blocks:          214864
    Unique aggregates announced from the APNIC address blocks:    87855
APNIC Region origin ASes present in the Internet Routing Table:   11192
    APNIC Prefixes per ASN:                                       19.20
APNIC Region origin ASes announcing only one prefix:               3195
APNIC Region transit ASes present in the Internet Routing Table:   1604
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         31
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6324
Number of APNIC addresses announced to Internet:              778374912
    Equivalent to 46 /8s, 101 /16s and 15 /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, 131072-143673
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

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

Prefixes being announced by ARIN Region ASes:                    241300
    Total ARIN prefixes after maximum aggregation:               111690
    ARIN Deaggregation factor:                                     2.16
Prefixes being announced from the ARIN address blocks:           241836
    Unique aggregates announced from the ARIN address blocks:    115697
ARIN Region origin ASes present in the Internet Routing Table:    18696
    ARIN Prefixes per ASN:                                        12.94
ARIN Region origin ASes announcing only one prefix:                6814
ARIN Region transit ASes present in the Internet Routing Table:    1921
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                         203
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3649
Number of ARIN addresses announced to Internet:              1093157376
    Equivalent to 65 /8s, 40 /16s and 66 /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, 393216-401308
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  47/8,  48/8,  50/8,  52/8,  53/8,
                        54/8,  55/8,  56/8,  57/8,  63/8,  64/8,  65/8,
                        66/8,  67/8,  68/8,  69/8,  70/8,  71/8,  72/8,
                        73/8,  74/8,  75/8,  76/8,  96/8,  97/8,  98/8,
                        99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
                       130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
                       138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
                       147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
                       158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
                       166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
                       174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

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

Prefixes being announced by RIPE Region ASes:                    238117
    Total RIPE prefixes after maximum aggregation:               112203
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           234004
    Unique aggregates announced from the RIPE address blocks:    137985
RIPE Region origin ASes present in the Internet Routing Table:    27618
    RIPE Prefixes per ASN:                                         8.47
RIPE Region origin ASes announcing only one prefix:               11875
RIPE Region transit ASes present in the Internet Routing Table:    3878
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9804
Number of RIPE addresses announced to Internet:               709883008
    Equivalent to 42 /8s, 79 /16s and 244 /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      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                  111846
    Total LACNIC prefixes after maximum aggregation:              26287
    LACNIC Deaggregation factor:                                   4.25
Prefixes being announced from the LACNIC address blocks:         112942
    Unique aggregates announced from the LACNIC address blocks:   48012
LACNIC Region origin ASes present in the Internet Routing Table:  10633
    LACNIC Prefixes per ASN:                                      10.62
LACNIC Region origin ASes announcing only one prefix:              2652
LACNIC Region transit ASes present in the Internet Routing Table:  1983
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        33
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8234
Number of LACNIC addresses announced to Internet:             174092288
    Equivalent to 10 /8s, 96 /16s and 112 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-272796 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes:                  24719
    Total AfriNIC prefixes after maximum aggregation:              4838
    AfriNIC Deaggregation factor:                                  5.11
Prefixes being announced from the AfriNIC address blocks:         31767
    Unique aggregates announced from the AfriNIC address blocks:  10337
AfriNIC Region origin ASes present in the Internet Routing Table:  1427
    AfriNIC Prefixes per ASN:                                     22.26
AfriNIC Region origin ASes announcing only one prefix:              486
AfriNIC Region transit ASes present in the Internet Routing Table:  289
Average AfriNIC Region AS path length visible:                      5.2
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  755
Number of AfriNIC addresses announced to Internet:            108230400
    Equivalent to 6 /8s, 115 /16s and 119 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
                      

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7545        5687        777     661  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4743       4192      74  ERX-CERNET-BKB China Education and Rese
  7552        3536       1330      21  VIETEL-AS-AP Viettel Group, VN
  7713        3234        952     519  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        2864       1896      55  VNPT-AS-VN VNPT Corp, VN
  9808        2778       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2462      11104     567  KIXS-AS-KR Korea Telecom, KR
  9498        2305        482     233  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2131        441     189  TATACOMM-AS TATA Communications formerl
 45090        2069       1045      64  CNNIC-TENCENT-NET-AP Shenzhen Tencent C

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        4735        314     723  CABLEONE, US
 16509        4618       9077    2134  AMAZON-02, US
  7155        4037        264      32  VIASAT-SP-BACKBONE, US
 22773        3819       3020     228  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3348       1319      83  SHAW, CA
 16625        3188       1669    2286  AKAMAI-AS, US
   209        2521       5058     507  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2499        370      85  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2350       3000    1640  FRONTIER-FRTR, US
 20115        2165       2902     510  CHARTER-20115, 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
 47331        6312        859    3615  TTNET, TR
 12479        6215       1667     141  UNI2-AS, ES
 39891        3459        195      22  ALJAWWALSTC-AS, SA
 20940        3372       3359     186  AKAMAI-ASN1, NL
  8551        3116        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2874       2280     886  ROSTELECOM-AS, RU
  9009        2307        231    1246  M247, GB
 34984        2175        354     578  TELLCOM-AS, TR
 13188        1611        100      23  TRIOLAN, UA
 58224        1491        860     546  TCI, IR

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        8101       3400     588  Uninet S.A. de C.V., MX
 10620        3385        526     606  Telmex Colombia S.A., CO
 11830        2564        369      63  Instituto Costarricense de Electricidad
 13999        1608        432     412  Mega Cable, S.A. de C.V., MX
  6503        1438        311     475  Axtel, S.A.B. de C.V., MX
  7303        1435        910     262  Telecom Argentina S.A., AR
 28573        1380       2260     221  CLARO S.A., BR
  6147        1146        379      39  Telefonica del Peru S.A.A., PE
  3816        1118        540     149  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1008        213     417  Techtel LMDS Comunicaciones Interactiva

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        1570        393      21  LINKdotNET-AS, EG
 24835        1253        466      28  RAYA-AS, EG
 36992        1158       1521     163  ETISALAT-MISR, EG
 36903         979        511     102  MT-MPLS, MA
 29571         703         68      12  ORANGE-COTE-IVOIRE, CI
  6713         533       1863      34  IAM-AS, MA
 37342         479         32       1  MOVITEL, MZ
 23889         454        232      16  MauritiusTelecom, MU
 36935         443        522      39  Vodafone-, EG
 15399         440         46      16  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        8101       3400     588  Uninet S.A. de C.V., MX
 47331        6312        859    3615  TTNET, TR
 12479        6215       1667     141  UNI2-AS, ES
  7545        5687        777     661  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4743       4192      74  ERX-CERNET-BKB China Education and Rese
 11492        4735        314     723  CABLEONE, US
 16509        4618       9077    2134  AMAZON-02, US
  7155        4037        264      32  VIASAT-SP-BACKBONE, US
 22773        3819       3020     228  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3536       1330      21  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        6215         6074  UNI2-AS, ES
  7545        5687         5026  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4743         4669  ERX-CERNET-BKB China Education and Research Net
 11492        4735         4012  CABLEONE, US
  7155        4037         4005  VIASAT-SP-BACKBONE, US
 22773        3819         3591  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3536         3515  VIETEL-AS-AP Viettel Group, VN
 39891        3459         3437  ALJAWWALSTC-AS, SA
  6327        3348         3265  SHAW, CA
 20940        3372         3186  AKAMAI-ASN1, NL

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
     16589  UNALLOCATED  8.20.247.0/24            23393  NUCDN, US
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24               174  COGENT-174, US
     18604  UNALLOCATED  8.25.204.0/24             3356  LEVEL3, US
     16589  UNALLOCATED  8.26.56.0/24             23393  NUCDN, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
    393579  UNALLOCATED  8.38.98.0/24              3356  LEVEL3, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, 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

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
23.133.192.0/24      Origin:     16734  UNASSIGNED
                    Transit:    266201  RNV CORP EIRELI, BR
23.141.0.0/24        Origin:    395350  UNASSIGNED
                    Transit:     11426  TWC-11426-CAROLINAS, US
23.142.80.0/24       Origin:    397881  STINGERS, US
                    Transit:    398481  REDMERCURY, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
                    Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 
27.126.156.0/22      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad No. 14, Jala

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

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:8        /9:13      /10:40      /11:101     /12:292     
/13:579     /14:1176    /15:1924    /16:13459   /17:8247    /18:13689   
/19:25636   /20:41507   /21:50600   /22:103774  /23:88216   /24:485346  
/25:1307    /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
 47331        5594        6312  TTNET, TR
 12479        5194        6215  UNI2-AS, ES
 11492        3809        4735  CABLEONE, US
  6327        3143        3348  SHAW, CA
  7155        3125        4037  VIASAT-SP-BACKBONE, US
 22773        2895        3819  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3459  ALJAWWALSTC-AS, SA
  8151        2721        8101  Uninet S.A. de C.V., MX
  8551        2577        3116  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2229        2499  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1883      2:1185      3:70        4:18        5:3581      6:53     
   8:1500      9:1        11:1        12:1753     13:350      14:2423   
  15:75       16:14       17:309      18:93       20:113      23:4192   
  24:2369     25:3        27:2334     31:2181     32:114      34:1      
  35:36       36:1140     37:3555     38:2011     39:471      40:150    
  41:3848     42:880      43:2099     44:233      45:14644    46:3581   
  47:317      49:1603     50:1680     51:89       52:1108     54:217    
  55:771      56:6        57:57       58:1691     59:1150     60:818    
  61:2326     62:2211     63:1992     64:5227     65:2391     66:5128   
  67:2949     68:1165     69:4094     70:1402     71:685      72:3104   
  74:2567     75:1468     76:690      77:1989     78:3249     79:2511   
  80:1915     81:1627     82:1314     83:1100     84:1258     85:3096   
  86:617      87:1799     88:2418     89:2881     90:397      91:7203   
  92:1583     93:2558     94:2918     95:4159     96:1230     97:344    
  98:964      99:979     100:90      101:1051    102:1250    103:25156  
 104:3630    105:400     106:716     107:2179    108:693     109:3651   
 110:1995    111:2349    112:1696    113:1585    114:1419    115:1853   
 116:1867    117:2130    118:2299    119:1869    120:952     121:1052   
 122:2300    123:2164    124:1610    125:2144    128:1324    129:1269   
 130:775     131:2009    132:757     133:312     134:1384    135:328    
 136:686     137:902     138:2297    139:1172    140:733     141:1167   
 142:1049    143:1221    144:1208    145:340     146:1385    147:1216   
 148:2164    149:1256    150:760     151:1199    152:1548    153:446    
 154:2147    155:1252    156:1357    157:1150    158:901     159:2051   
 160:2034    161:1080    162:3244    163:942     164:1433    165:1308   
 166:600     167:1750    168:3598    169:638     170:4354    171:751    
 172:2042    173:2919    174:960     175:1062    176:2944    177:4377   
 178:2800    179:1855    180:2273    181:2589    182:3180    183:1565   
 184:2446    185:17634   186:4049    187:2964    188:3262    189:2702   
 190:9077    191:1349    192:10610   193:7864    194:6449    195:4586   
 196:3104    197:2269    198:6019    199:5950    200:7312    201:5291   
 202:10490   203:10084   204:4662    205:3102    206:3371    207:3324   
 208:3993    209:4624    210:4225    211:2139    212:3616    213:3211   
 214:1186    215:60      216:6144    217:2473    218:916     219:642    
 220:2095    221:928     222:974     223:1708   

End of report


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