[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 14 18:03:33 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 15 Aug, 2020

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

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

BGP routing table entries examined:                              817032
    Prefixes after maximum aggregation (per Origin AS):          311713
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      394710
Total ASes present in the Internet Routing Table:                 69029
    Prefixes per ASN:                                             11.84
Origin-only ASes present in the Internet Routing Table:           59323
Origin ASes announcing only one prefix:                           24702
Transit ASes present in the Internet Routing Table:                9706
Transit-only ASes present in the Internet Routing Table:            299
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:                       853
Number of 32-bit ASNs allocated by the RIRs:                      33020
Number of 32-bit ASNs visible in the Routing Table:               27233
Prefixes from 32-bit ASNs in the Routing Table:                  126083
Number of bogon 32-bit ASNs visible in the Routing Table:            11
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            456
Number of addresses announced to Internet:                   2846194432
    Equivalent to 169 /8s, 165 /16s and 123 /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:      273183

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

Prefixes being announced by APNIC Region ASes:                   215809
    Total APNIC prefixes after maximum aggregation:               63274
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          209604
    Unique aggregates announced from the APNIC address blocks:    86233
APNIC Region origin ASes present in the Internet Routing Table:   10827
    APNIC Prefixes per ASN:                                       19.36
APNIC Region origin ASes announcing only one prefix:               3055
APNIC Region transit ASes present in the Internet Routing Table:   1597
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:   5902
Number of APNIC addresses announced to Internet:              769488768
    Equivalent to 45 /8s, 221 /16s and 119 /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:                    239950
    Total ARIN prefixes after maximum aggregation:               110392
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           237384
    Unique aggregates announced from the ARIN address blocks:    115989
ARIN Region origin ASes present in the Internet Routing Table:    18569
    ARIN Prefixes per ASN:                                        12.78
ARIN Region origin ASes announcing only one prefix:                6791
ARIN Region transit ASes present in the Internet Routing Table:    1901
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:    3371
Number of ARIN addresses announced to Internet:              1082705920
    Equivalent to 64 /8s, 136 /16s and 200 /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:                    227162
    Total RIPE prefixes after maximum aggregation:               107255
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           223608
    Unique aggregates announced from the RIPE address blocks:    135418
RIPE Region origin ASes present in the Internet Routing Table:    27281
    RIPE Prefixes per ASN:                                         8.20
RIPE Region origin ASes announcing only one prefix:               11793
RIPE Region transit ASes present in the Internet Routing Table:    3848
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9402
Number of RIPE addresses announced to Internet:               709291648
    Equivalent to 42 /8s, 70 /16s and 238 /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:                  110061
    Total LACNIC prefixes after maximum aggregation:              25350
    LACNIC Deaggregation factor:                                   4.34
Prefixes being announced from the LACNIC address blocks:         111171
    Unique aggregates announced from the LACNIC address blocks:   47343
LACNIC Region origin ASes present in the Internet Routing Table:  10256
    LACNIC Prefixes per ASN:                                      10.84
LACNIC Region origin ASes announcing only one prefix:              2562
LACNIC Region transit ASes present in the Internet Routing Table:  1923
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        40
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7845
Number of LACNIC addresses announced to Internet:             174732288
    Equivalent to 10 /8s, 106 /16s and 52 /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:                  23197
    Total AfriNIC prefixes after maximum aggregation:              4768
    AfriNIC Deaggregation factor:                                  4.87
Prefixes being announced from the AfriNIC address blocks:         34809
    Unique aggregates announced from the AfriNIC address blocks:   9361
AfriNIC Region origin ASes present in the Internet Routing Table:  1421
    AfriNIC Prefixes per ASN:                                     24.50
AfriNIC Region origin ASes announcing only one prefix:              501
AfriNIC Region transit ASes present in the Internet Routing Table:  284
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:  713
Number of AfriNIC addresses announced to Internet:            109521664
    Equivalent to 6 /8s, 135 /16s and 43 /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        5629        758     670  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4742       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3467       1330      22  VIETEL-AS-AP Viettel Group, VN
 45899        3282       1896      51  VNPT-AS-VN VNPT Corp, VN
  7713        2696        823     589  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2530       9043      60  CMNET-GD Guangdong Mobile Communication
  4766        2340      11103     555  KIXS-AS-KR Korea Telecom, KR
  9498        2290        450     226  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2144        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        4489        301     645  CABLEONE, US
 16509        4131       8177    1878  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3619       2983     172  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3365       1323      84  SHAW, CA
 16625        3131       1660    2247  AKAMAI-AS, US
 26484        2449        153     333  IKGUL-26484, US
   209        2446       5073     520  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2443        366     111  MEDIACOM-ENTERPRISE-BUSINESS, 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        5956       1652     135  UNI2-AS, ES
  8551        3217        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3139       2217    1027  AKAMAI-ASN1, EU
 39891        3073        179      21  ALJAWWALSTC-AS, SA
 12389        2661       2270     833  ROSTELECOM-AS, RU
 34984        2167        354     567  TELLCOM-AS, TR
  9009        2119        220    1152  M247, GB
 13188        1609        100      35  TRIOLAN, UA
 61317        1352        156     602  ASDETUK http://www.heficed.com, GB
 12357        1174        314     666  COMUNITEL SPAIN, ES

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        7343       3308     598  Uninet S.A. de C.V., MX
 10620        3372        530     509  Telmex Colombia S.A., CO
 11830        2581        369      63  Instituto Costarricense de Electricidad
  6503        1698        324     396  Axtel, S.A.B. de C.V., MX
  7303        1508        978     257  Telecom Argentina S.A., AR
 13999        1419        502     377  Mega Cable, S.A. de C.V., MX
 28573        1403       2243     212  CLARO S.A., BR
  3816        1127        570     153  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1117        379      39  Telefonica del Peru S.A.A., PE
 11172         958        111      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        1494        393      22  LINKdotNET-AS, EG
 24835        1122        474      23  RAYA-AS, EG
 36992        1120       1539      76  ETISALAT-MISR, EG
 36903         917        480      93  MT-MPLS, MA
 29571         628         68      11  ORANGE-COTE-IVOIRE, CI
  6713         553       1863      34  IAM-AS, MA
 15399         490         45      12  WANANCHI-, KE
 37342         482         32       1  MOVITEL, MZ
 36935         462        522      40  Vodafone-, EG
 23889         344        231      15  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        7343       3308     598  Uninet S.A. de C.V., MX
 12479        5956       1652     135  UNI2-AS, ES
  7545        5629        758     670  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4742       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4489        301     645  CABLEONE, US
 16509        4131       8177    1878  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3619       2983     172  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3467       1330      22  VIETEL-AS-AP Viettel Group, VN
 10620        3372        530     509  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        5956         5821  UNI2-AS, ES
  7545        5629         4959  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4742         4669  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4002  VIASAT-SP-BACKBONE, US
 11492        4489         3844  CABLEONE, US
 22773        3619         3447  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3467         3445  VIETEL-AS-AP Viettel Group, VN
  6327        3365         3281  SHAW, CA
 45899        3282         3231  VNPT-AS-VN VNPT Corp, VN
  8551        3217         3172  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
41.67.208.0/21       Origin:     15964  CAMNET-AS, CM
                    Transit:     12956  TELEFONICA TELXIUS, ES

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     
/13:576     /14:1175    /15:1931    /16:13471   /17:8280    /18:14030   
/19:25946   /20:40914   /21:49156   /22:101791  /23:84697   /24:473343  
/25:1278    /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        4978        5956  UNI2-AS, ES
 11492        3556        4489  CABLEONE, US
  6327        3160        3365  SHAW, CA
  7155        3122        4034  VIASAT-SP-BACKBONE, US
 22773        2803        3619  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        2676        3217  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 39891        2609        3073  ALJAWWALSTC-AS, SA
  8151        2531        7343  Uninet S.A. de C.V., MX
 30036        2187        2443  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)
----------------------------------------------

   1:1600      2:1137      3:32        4:19        5:3407      6:53     
   8:1463      9:1        11:1        12:1780     13:519      14:2289   
  15:72       16:8        17:293      18:85       20:110      23:3858   
  24:2343     25:3        27:2554     31:2154     32:127      34:1      
  35:42       36:984      37:3327     38:1885     39:450      40:127    
  41:3596     42:634      43:2139     44:214      45:14718    46:3647   
  47:320      49:1479     50:1637     51:90       52:1102     54:226    
  55:665      56:6        57:51       58:1769     59:1192     60:785    
  61:2301     62:2137     63:2002     64:5221     65:2346     66:5054   
  67:2879     68:1176     69:4042     70:1401     71:678      72:2893   
  74:2581     75:1454     76:673      77:1950     78:1645     79:2418   
  80:2036     81:1612     82:1314     83:1265     84:1234     85:2631   
  86:567      87:1753     88:929      89:2791     90:357      91:7120   
  92:1560     93:2499     94:2755     95:3250     96:1249     97:338    
  98:921      99:978     100:87      101:1009    102:1038    103:24152  
 104:3481    105:404     106:887     107:2080    108:711     109:3712   
 110:1953    111:2054    112:1658    113:1381    114:1517    115:1830   
 116:1788    117:2086    118:2147    119:1709    120:823     121:1056   
 122:2452    123:2030    124:1634    125:2136    128:1374    129:1215   
 130:701     131:1887    132:748     133:306     134:1390    135:299    
 136:635     137:855     138:2276    139:1028    140:708     141:1053   
 142:950     143:1237    144:1104    145:364     146:1381    147:1015   
 148:2128    149:1219    150:773     151:1083    152:1546    153:423    
 154:4552    155:1131    156:3003    157:1119    158:865     159:1967   
 160:1910    161:1052    162:3136    163:887     164:1509    165:1308   
 166:568     167:1638    168:3552    169:597     170:4280    171:789    
 172:1970    173:2611    174:981     175:1054    176:2678    177:4810   
 178:2682    179:1653    180:2272    181:2510    182:3098    183:1162   
 184:2428    185:16700   186:3852    187:2990    188:3284    189:2556   
 190:8855    191:1428    192:10375   193:7605    194:6261    195:4441   
 196:3111    197:1984    198:6121    199:5960    200:7275    201:5217   
 202:10577   203:10237   204:4624    205:3067    206:3181    207:3272   
 208:4048    209:4520    210:4100    211:2037    212:3456    213:3127   
 214:1166    215:62      216:6074    217:2425    218:862     219:612    
 220:2054    221:908     222:997     223:1633   

End of report


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