[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 21 18:03:28 UTC 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 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 22 Aug, 2020

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

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

BGP routing table entries examined:                              818865
    Prefixes after maximum aggregation (per Origin AS):          312126
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      395753
Total ASes present in the Internet Routing Table:                 69078
    Prefixes per ASN:                                             11.85
Origin-only ASes present in the Internet Routing Table:           59356
Origin ASes announcing only one prefix:                           24674
Transit ASes present in the Internet Routing Table:                9722
Transit-only ASes present in the Internet Routing Table:            297
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      42
    Max AS path prepend of ASN ( 22394)                              38
Prefixes from unregistered ASNs in the Routing Table:               852
    Number of instances of unregistered ASNs:                       869
Number of 32-bit ASNs allocated by the RIRs:                      33136
Number of 32-bit ASNs visible in the Routing Table:               27294
Prefixes from 32-bit ASNs in the Routing Table:                  126720
Number of bogon 32-bit ASNs visible in the Routing Table:            33
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            445
Number of addresses announced to Internet:                   2846637824
    Equivalent to 169 /8s, 172 /16s and 63 /24s
    Percentage of available address space announced:               76.9
    Percentage of allocated address space announced:               76.9
    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:      273841

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

Prefixes being announced by APNIC Region ASes:                   216404
    Total APNIC prefixes after maximum aggregation:               63286
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          210231
    Unique aggregates announced from the APNIC address blocks:    86619
APNIC Region origin ASes present in the Internet Routing Table:   10833
    APNIC Prefixes per ASN:                                       19.41
APNIC Region origin ASes announcing only one prefix:               3034
APNIC Region transit ASes present in the Internet Routing Table:   1591
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:   5910
Number of APNIC addresses announced to Internet:              769613696
    Equivalent to 45 /8s, 223 /16s and 95 /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     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:                    240348
    Total ARIN prefixes after maximum aggregation:               110518
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           237851
    Unique aggregates announced from the ARIN address blocks:    116340
ARIN Region origin ASes present in the Internet Routing Table:    18563
    ARIN Prefixes per ASN:                                        12.81
ARIN Region origin ASes announcing only one prefix:                6778
ARIN Region transit ASes present in the Internet Routing Table:    1900
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:    3379
Number of ARIN addresses announced to Internet:              1082992896
    Equivalent to 64 /8s, 141 /16s and 41 /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      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:                    227630
    Total RIPE prefixes after maximum aggregation:               107425
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           224015
    Unique aggregates announced from the RIPE address blocks:    135689
RIPE Region origin ASes present in the Internet Routing Table:    27304
    RIPE Prefixes per ASN:                                         8.20
RIPE Region origin ASes announcing only one prefix:               11789
RIPE Region transit ASes present in the Internet Routing Table:    3869
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          35
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9418
Number of RIPE addresses announced to Internet:               709298304
    Equivalent to 42 /8s, 71 /16s and 8 /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:                  110146
    Total LACNIC prefixes after maximum aggregation:              25459
    LACNIC Deaggregation factor:                                   4.33
Prefixes being announced from the LACNIC address blocks:         111259
    Unique aggregates announced from the LACNIC address blocks:   47390
LACNIC Region origin ASes present in the Internet Routing Table:  10285
    LACNIC Prefixes per ASN:                                      10.82
LACNIC Region origin ASes announcing only one prefix:              2574
LACNIC Region transit ASes present in the Internet Routing Table:  1917
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7872
Number of LACNIC addresses announced to Internet:             174689280
    Equivalent to 10 /8s, 105 /16s and 140 /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:                  23484
    Total AfriNIC prefixes after maximum aggregation:              4766
    AfriNIC Deaggregation factor:                                  4.93
Prefixes being announced from the AfriNIC address blocks:         35064
    Unique aggregates announced from the AfriNIC address blocks:   9359
AfriNIC Region origin ASes present in the Internet Routing Table:  1421
    AfriNIC Prefixes per ASN:                                     24.68
AfriNIC Region origin ASes announcing only one prefix:              499
AfriNIC Region transit ASes present in the Internet Routing Table:  288
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  715
Number of AfriNIC addresses announced to Internet:            109599744
    Equivalent to 6 /8s, 136 /16s and 92 /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        5631        761     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4634       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3486       1330      22  VIETEL-AS-AP Viettel Group, VN
 45899        3286       1896      51  VNPT-AS-VN VNPT Corp, VN
  7713        2737        830     555  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2521       9043      60  CMNET-GD Guangdong Mobile Communication
  4766        2340      11101     552  KIXS-AS-KR Korea Telecom, KR
  9498        2290        450     226  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2143        441     193  TATACOMM-AS TATA Communications formerl
  9394        2038       4914      18  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        4532        304     644  CABLEONE, US
 16509        4168       8246    1899  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3623       2984     173  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3365       1323      84  SHAW, CA
 16625        3140       1660    2248  AKAMAI-AS, US
 30036        2453        367     106  MEDIACOM-ENTERPRISE-BUSINESS, US
 26484        2449        153     333  IKGUL-26484, US
   209        2446       5073     521  CENTURYLINK-US-LEGACY-QWEST, US
  5650        2308       2981    1624  FRONTIER-FRTR, 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        5961       1652     135  UNI2-AS, ES
 20940        3151       2217    1025  AKAMAI-ASN1, EU
  8551        3128        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 39891        3073        179      21  ALJAWWALSTC-AS, SA
 12389        2665       2271     836  ROSTELECOM-AS, RU
 34984        2168        354     566  TELLCOM-AS, TR
  9009        2138        224    1167  M247, GB
 13188        1609        100      35  TRIOLAN, UA
 61317        1356        160     604  ASDETUK http://www.heficed.com, GB
 58224        1226        826     519  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        7454       3305     601  Uninet S.A. de C.V., MX
 10620        3367        530     520  Telmex Colombia S.A., CO
 11830        2581        369      63  Instituto Costarricense de Electricidad
  6503        1625        323     414  Axtel, S.A.B. de C.V., MX
  7303        1509        979     258  Telecom Argentina S.A., AR
 13999        1445        503     381  Mega Cable, S.A. de C.V., MX
 28573        1356       2243     218  CLARO S.A., BR
  3816        1130        571     154  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1117        379      39  Telefonica del Peru S.A.A., PE
 11172         957        111      69  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        1495        393      22  LINKdotNET-AS, EG
 24835        1120        466      24  RAYA-AS, EG
 36992        1120       1539      75  ETISALAT-MISR, EG
 36903         917        480      93  MT-MPLS, MA
 29571         665         68      11  ORANGE-COTE-IVOIRE, CI
  6713         552       1863      34  IAM-AS, MA
 15399         491         45      13  WANANCHI-, KE
 36935         484        522      40  Vodafone-, EG
 37342         481         32       1  MOVITEL, MZ
 23889         345        232      16  MauritiusTelecom, MU

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        7454       3305     601  Uninet S.A. de C.V., MX
 12479        5961       1652     135  UNI2-AS, ES
  7545        5631        761     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4634       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4532        304     644  CABLEONE, US
 16509        4168       8246    1899  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3623       2984     173  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3486       1330      22  VIETEL-AS-AP Viettel Group, VN
 10620        3367        530     520  Telmex Colombia S.A., CO

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        5961         5826  UNI2-AS, ES
  7545        5631         4957  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4634         4561  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4002  VIASAT-SP-BACKBONE, US
 11492        4532         3888  CABLEONE, US
  7552        3486         3464  VIETEL-AS-AP Viettel Group, VN
 22773        3623         3450  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3365         3281  SHAW, CA
 45899        3286         3235  VNPT-AS-VN VNPT Corp, VN
  8551        3128         3083  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo

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
     22357  UNALLOCATED  8.7.108.0/24              3356  LEVEL3, US
     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
     36270  UNALLOCATED  8.24.66.0/24              3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     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
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
27.126.156.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad No. 14, Jala
27.126.158.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad No. 14, Jala
41.78.164.0/24       Origin:    328013  ISPAfrika, ZA
                    Transit:     37179  AFRICAINX, ZA

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        /8:9        /9:11      /10:38      /11:100     /12:286     
/13:575     /14:1175    /15:1932    /16:13473   /17:8268    /18:14051   
/19:25959   /20:40895   /21:49196   /22:101863  /23:84827   /24:474931  
/25:1276    /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        4982        5961  UNI2-AS, ES
 11492        3599        4532  CABLEONE, US
  6327        3160        3365  SHAW, CA
  7155        3122        4034  VIASAT-SP-BACKBONE, US
 22773        2805        3623  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2609        3073  ALJAWWALSTC-AS, SA
  8551        2587        3128  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151        2563        7454  Uninet S.A. de C.V., MX
 30036        2196        2453  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        1994        2308  FRONTIER-FRTR, US

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

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

   1:1615      2:1139      3:33        4:19        5:3410      6:53     
   8:1470      9:1        11:1        12:1782     13:519      14:2289   
  15:72       16:8        17:292      18:85       20:110      23:3904   
  24:2339     25:3        27:2567     31:2158     32:126      34:1      
  35:42       36:988      37:3322     38:1884     39:450      40:128    
  41:3688     42:638      43:2147     44:217      45:14740    46:3673   
  47:320      49:1515     50:1628     51:90       52:1099     54:224    
  55:616      56:6        57:52       58:1769     59:1187     60:791    
  61:2302     62:2127     63:2017     64:5234     65:2346     66:5074   
  67:2900     68:1178     69:4039     70:1401     71:677      72:2903   
  74:2583     75:1458     76:672      77:1954     78:1648     79:2320   
  80:2031     81:1604     82:1303     83:1256     84:1230     85:2658   
  86:561      87:1749     88:932      89:2791     90:360      91:7121   
  92:1557     93:2492     94:2785     95:3259     96:1251     97:338    
  98:925      99:979     100:87      101:1011    102:1077    103:24227  
 104:3508    105:404     106:898     107:2112    108:715     109:3718   
 110:1966    111:2060    112:1662    113:1389    114:1521    115:1841   
 116:1797    117:2087    118:2153    119:1727    120:823     121:1055   
 122:2535    123:2039    124:1635    125:2142    128:1379    129:1213   
 130:707     131:1900    132:755     133:306     134:1393    135:300    
 136:643     137:859     138:2258    139:1044    140:710     141:1092   
 142:948     143:1225    144:1156    145:364     146:1379    147:1012   
 148:2104    149:1292    150:915     151:1087    152:1556    153:426    
 154:4546    155:1210    156:2996    157:1117    158:862     159:1963   
 160:1950    161:1058    162:3162    163:894     164:1501    165:1311   
 166:572     167:1649    168:3525    169:596     170:4262    171:792    
 172:1979    173:2664    174:981     175:1053    176:2747    177:4795   
 178:2682    179:1692    180:2286    181:2535    182:3115    183:1164   
 184:2422    185:16801   186:3871    187:2975    188:3317    189:2554   
 190:8908    191:1434    192:10380   193:7627    194:6262    195:4461   
 196:3130    197:2041    198:6111    199:5930    200:7280    201:5227   
 202:10580   203:10201   204:4608    205:3105    206:3173    207:3260   
 208:4021    209:4513    210:4150    211:2032    212:3507    213:3148   
 214:1177    215:62      216:6070    217:2418    218:849     219:611    
 220:2051    221:909     222:996     223:1663   

End of report


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