[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 1 18:03:18 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 02 Jan, 2021

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

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

BGP routing table entries examined:                              833633
    Prefixes after maximum aggregation (per Origin AS):          320053
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      399759
Total ASes present in the Internet Routing Table:                 70222
    Prefixes per ASN:                                             11.87
Origin-only ASes present in the Internet Routing Table:           60418
Origin ASes announcing only one prefix:                           25000
Transit ASes present in the Internet Routing Table:                9804
Transit-only ASes present in the Internet Routing Table:            298
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                     203
    Max AS path prepend of ASN (396896)                             200
Prefixes from unregistered ASNs in the Routing Table:              1027
    Number of instances of unregistered ASNs:                      1031
Number of 32-bit ASNs allocated by the RIRs:                      34573
Number of 32-bit ASNs visible in the Routing Table:               28719
Prefixes from 32-bit ASNs in the Routing Table:                  132424
Number of bogon 32-bit ASNs visible in the Routing Table:            24
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            503
Number of addresses announced to Internet:                   2863108480
    Equivalent to 170 /8s, 167 /16s and 145 /24s
    Percentage of available address space announced:               77.3
    Percentage of allocated address space announced:               77.3
    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:      284210

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

Prefixes being announced by APNIC Region ASes:                   217099
    Total APNIC prefixes after maximum aggregation:               64442
    APNIC Deaggregation factor:                                    3.37
Prefixes being announced from the APNIC address blocks:          213119
    Unique aggregates announced from the APNIC address blocks:    87656
APNIC Region origin ASes present in the Internet Routing Table:   11153
    APNIC Prefixes per ASN:                                       19.11
APNIC Region origin ASes announcing only one prefix:               3187
APNIC Region transit ASes present in the Internet Routing Table:   1592
Average APNIC Region AS path length visible:                        4.3
    Max APNIC Region AS path length visible:                         31
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6300
Number of APNIC addresses announced to Internet:              777987072
    Equivalent to 46 /8s, 95 /16s and 36 /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:                    241006
    Total ARIN prefixes after maximum aggregation:               111573
    ARIN Deaggregation factor:                                     2.16
Prefixes being announced from the ARIN address blocks:           241489
    Unique aggregates announced from the ARIN address blocks:    115552
ARIN Region origin ASes present in the Internet Routing Table:    18699
    ARIN Prefixes per ASN:                                        12.91
ARIN Region origin ASes announcing only one prefix:                6821
ARIN Region transit ASes present in the Internet Routing Table:    1920
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:    3639
Number of ARIN addresses announced to Internet:              1092739584
    Equivalent to 65 /8s, 33 /16s and 226 /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:                    237695
    Total RIPE prefixes after maximum aggregation:               112156
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           233575
    Unique aggregates announced from the RIPE address blocks:    137802
RIPE Region origin ASes present in the Internet Routing Table:    27612
    RIPE Prefixes per ASN:                                         8.46
RIPE Region origin ASes announcing only one prefix:               11862
RIPE Region transit ASes present in the Internet Routing Table:    3866
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9797
Number of RIPE addresses announced to Internet:               709632896
    Equivalent to 42 /8s, 76 /16s and 35 /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:                  112044
    Total LACNIC prefixes after maximum aggregation:              26303
    LACNIC Deaggregation factor:                                   4.26
Prefixes being announced from the LACNIC address blocks:         113159
    Unique aggregates announced from the LACNIC address blocks:   48017
LACNIC Region origin ASes present in the Internet Routing Table:  10634
    LACNIC Prefixes per ASN:                                      10.64
LACNIC Region origin ASes announcing only one prefix:              2645
LACNIC Region transit ASes present in the Internet Routing Table:  1977
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        38
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8232
Number of LACNIC addresses announced to Internet:             174067968
    Equivalent to 10 /8s, 96 /16s and 17 /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:                  24760
    Total AfriNIC prefixes after maximum aggregation:              4834
    AfriNIC Deaggregation factor:                                  5.12
Prefixes being announced from the AfriNIC address blocks:         31788
    Unique aggregates announced from the AfriNIC address blocks:  10313
AfriNIC Region origin ASes present in the Internet Routing Table:  1423
    AfriNIC Prefixes per ASN:                                     22.34
AfriNIC Region origin ASes announcing only one prefix:              484
AfriNIC Region transit ASes present in the Internet Routing Table:  287
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  751
Number of AfriNIC addresses announced to Internet:            108255488
    Equivalent to 6 /8s, 115 /16s and 217 /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        5681        777     659  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4914       4192      74  ERX-CERNET-BKB China Education and Rese
  7552        3562       1330      21  VIETEL-AS-AP Viettel Group, VN
  7713        3234        952     519  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        2863       1896      55  VNPT-AS-VN VNPT Corp, VN
  9808        2779       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2477      11107     572  KIXS-AS-KR Korea Telecom, KR
  9498        2296        466     233  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2130        441     189  TATACOMM-AS TATA Communications formerl
 45090        2067       1045      63  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        4761        316     708  CABLEONE, US
 16509        4600       9074    2122  AMAZON-02, US
  7155        4022        264      32  VIASAT-SP-BACKBONE, US
 22773        3776       3016     212  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3357       1319      83  SHAW, CA
 16625        3178       1665    2281  AKAMAI-AS, US
   209        2525       5058     508  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2488        369     131  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2336       2984    1643  FRONTIER-FRTR, US
 20115        2163       2898     509  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        6274        855    3608  TTNET, TR
 12479        6202       1667     141  UNI2-AS, ES
 39891        3459        195      22  ALJAWWALSTC-AS, SA
 20940        3351       3359     186  AKAMAI-ASN1, NL
  8551        3203        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2874       2280     886  ROSTELECOM-AS, RU
  9009        2279        227    1233  M247, GB
 34984        2175        354     579  TELLCOM-AS, TR
 13188        1611        100      23  TRIOLAN, UA
 58224        1475        857     550  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        8075       3398     584  Uninet S.A. de C.V., MX
 10620        3390        526     605  Telmex Colombia S.A., CO
 11830        2564        369      63  Instituto Costarricense de Electricidad
 13999        1606        432     410  Mega Cable, S.A. de C.V., MX
  6503        1438        311     475  Axtel, S.A.B. de C.V., MX
  7303        1437        912     263  Telecom Argentina S.A., AR
 28573        1379       2260     220  CLARO S.A., BR
  6147        1147        379      39  Telefonica del Peru S.A.A., PE
  3816        1115        537     152  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        1566        393      22  LINKdotNET-AS, EG
 24835        1287        478      26  RAYA-AS, EG
 36992        1148       1521     165  ETISALAT-MISR, EG
 36903         979        511     102  MT-MPLS, MA
 29571         700         68      12  ORANGE-COTE-IVOIRE, CI
  6713         532       1863      34  IAM-AS, MA
 37342         478         32       1  MOVITEL, MZ
 36935         466        522      40  Vodafone-, EG
 23889         454        232      16  MauritiusTelecom, MU
 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        8075       3398     584  Uninet S.A. de C.V., MX
 47331        6274        855    3608  TTNET, TR
 12479        6202       1667     141  UNI2-AS, ES
  7545        5681        777     659  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4914       4192      74  ERX-CERNET-BKB China Education and Rese
 11492        4761        316     708  CABLEONE, US
 16509        4600       9074    2122  AMAZON-02, US
  7155        4022        264      32  VIASAT-SP-BACKBONE, US
 22773        3776       3016     212  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3562       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        6202         6061  UNI2-AS, ES
  7545        5681         5022  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4914         4840  ERX-CERNET-BKB China Education and Research Net
 11492        4761         4053  CABLEONE, US
  7155        4022         3990  VIASAT-SP-BACKBONE, US
 22773        3776         3564  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3562         3541  VIETEL-AS-AP Viettel Group, VN
 39891        3459         3437  ALJAWWALSTC-AS, SA
  6327        3357         3274  SHAW, CA
 20940        3351         3165  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
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     46766  UNALLOCATED  8.44.208.0/24             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:      3803  RCN-AS1, US
                    Transit:    397881  STINGERS, 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     /14:1175    /15:1930    /16:13472   /17:8260    /18:13699   
/19:25583   /20:41046   /21:50526   /22:103584  /23:88035   /24:483983  
/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        5557        6274  TTNET, TR
 12479        5181        6202  UNI2-AS, ES
 11492        3813        4761  CABLEONE, US
  6327        3152        3357  SHAW, CA
  7155        3111        4022  VIASAT-SP-BACKBONE, US
 22773        2882        3776  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3459  ALJAWWALSTC-AS, SA
  8151        2699        8075  Uninet S.A. de C.V., MX
  8551        2664        3203  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2220        2488  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1643      2:1175      3:68        4:18        5:3573      6:54     
   8:1495      9:1        11:1        12:1740     13:349      14:2404   
  15:75       16:13       17:308      18:93       20:113      23:4165   
  24:2366     25:3        27:2332     31:2176     32:113      34:1      
  35:37       36:1129     37:3565     38:2011     39:466      40:150    
  41:3853     42:594      43:2088     44:232      45:14656    46:3577   
  47:318      49:1598     50:1699     51:89       52:1133     54:219    
  55:765      56:6        57:57       58:1614     59:1145     60:817    
  61:2297     62:2196     63:2011     64:5218     65:2387     66:5123   
  67:2949     68:1182     69:4092     70:1398     71:685      72:3091   
  74:2533     75:1463     76:693      77:1977     78:3199     79:2472   
  80:1919     81:1629     82:1299     83:1092     84:1254     85:3087   
  86:621      87:1797     88:2417     89:2848     90:395      91:7204   
  92:1582     93:2545     94:2891     95:4158     96:1229     97:341    
  98:962      99:976     100:90      101:1049    102:1238    103:25088  
 104:3626    105:393     106:770     107:2182    108:691     109:3750   
 110:1989    111:2346    112:1693    113:1541    114:1405    115:1841   
 116:1841    117:2120    118:2216    119:1842    120:936     121:1044   
 122:2293    123:2153    124:1619    125:2140    128:1320    129:1267   
 130:776     131:2004    132:748     133:312     134:1377    135:328    
 136:689     137:895     138:2297    139:1169    140:735     141:1164   
 142:1047    143:1225    144:1212    145:342     146:1388    147:1211   
 148:2154    149:1254    150:758     151:1204    152:1546    153:445    
 154:2107    155:1247    156:1357    157:1147    158:907     159:2043   
 160:2060    161:1082    162:3228    163:941     164:1432    165:1313   
 166:601     167:1734    168:3615    169:632     170:4359    171:754    
 172:2029    173:2896    174:972     175:1051    176:2919    177:4445   
 178:2805    179:1868    180:2280    181:2585    182:3163    183:1538   
 184:2428    185:17632   186:4024    187:3047    188:3228    189:2656   
 190:9113    191:1434    192:10608   193:7850    194:6429    195:4582   
 196:3103    197:2257    198:6032    199:5965    200:7319    201:5272   
 202:10452   203:10170   204:4598    205:3088    206:3309    207:3327   
 208:3995    209:4615    210:4201    211:2127    212:3612    213:3206   
 214:1187    215:61      216:6137    217:2478    218:914     219:647    
 220:2093    221:933     222:980     223:1692   

End of report


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