Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 13 18:03:58 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 14 Nov, 2020

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

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

BGP routing table entries examined:                              829986
    Prefixes after maximum aggregation (per Origin AS):          316702
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      397700
Total ASes present in the Internet Routing Table:                 69941
    Prefixes per ASN:                                             11.87
Origin-only ASes present in the Internet Routing Table:           60088
Origin ASes announcing only one prefix:                           24866
Transit ASes present in the Internet Routing Table:                9853
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:                                      32
    Max AS path prepend of ASN ( 45582)                              27
Prefixes from unregistered ASNs in the Routing Table:               937
    Number of instances of unregistered ASNs:                       938
Number of 32-bit ASNs allocated by the RIRs:                      34135
Number of 32-bit ASNs visible in the Routing Table:               28269
Prefixes from 32-bit ASNs in the Routing Table:                  129495
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:                   2864819456
    Equivalent to 170 /8s, 193 /16s and 173 /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:      279750

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

Prefixes being announced by APNIC Region ASes:                   217220
    Total APNIC prefixes after maximum aggregation:               63608
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          212793
    Unique aggregates announced from the APNIC address blocks:    87004
APNIC Region origin ASes present in the Internet Routing Table:   11033
    APNIC Prefixes per ASN:                                       19.29
APNIC Region origin ASes announcing only one prefix:               3122
APNIC Region transit ASes present in the Internet Routing Table:   1612
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         31
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6149
Number of APNIC addresses announced to Internet:              778064768
    Equivalent to 46 /8s, 96 /16s and 83 /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:                    241972
    Total ARIN prefixes after maximum aggregation:               111442
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           239960
    Unique aggregates announced from the ARIN address blocks:    114930
ARIN Region origin ASes present in the Internet Routing Table:    18679
    ARIN Prefixes per ASN:                                        12.85
ARIN Region origin ASes announcing only one prefix:                6806
ARIN Region transit ASes present in the Internet Routing Table:    1907
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3544
Number of ARIN addresses announced to Internet:              1093479424
    Equivalent to 65 /8s, 45 /16s and 44 /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:                    233793
    Total RIPE prefixes after maximum aggregation:               110050
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           229765
    Unique aggregates announced from the RIPE address blocks:    137116
RIPE Region origin ASes present in the Internet Routing Table:    27509
    RIPE Prefixes per ASN:                                         8.35
RIPE Region origin ASes announcing only one prefix:               11853
RIPE Region transit ASes present in the Internet Routing Table:    3906
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9652
Number of RIPE addresses announced to Internet:               709605760
    Equivalent to 42 /8s, 75 /16s and 185 /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:                  111691
    Total LACNIC prefixes after maximum aggregation:              26119
    LACNIC Deaggregation factor:                                   4.28
Prefixes being announced from the LACNIC address blocks:         112883
    Unique aggregates announced from the LACNIC address blocks:   47965
LACNIC Region origin ASes present in the Internet Routing Table:  10605
    LACNIC Prefixes per ASN:                                      10.64
LACNIC Region origin ASes announcing only one prefix:              2602
LACNIC Region transit ASes present in the Internet Routing Table:  1972
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8193
Number of LACNIC addresses announced to Internet:             174594816
    Equivalent to 10 /8s, 104 /16s and 27 /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:                  24371
    Total AfriNIC prefixes after maximum aggregation:              4740
    AfriNIC Deaggregation factor:                                  5.14
Prefixes being announced from the AfriNIC address blocks:         34084
    Unique aggregates announced from the AfriNIC address blocks:  10272
AfriNIC Region origin ASes present in the Internet Routing Table:  1410
    AfriNIC Prefixes per ASN:                                     24.17
AfriNIC Region origin ASes announcing only one prefix:              482
AfriNIC Region transit ASes present in the Internet Routing Table:  292
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  731
Number of AfriNIC addresses announced to Internet:            108602624
    Equivalent to 6 /8s, 121 /16s and 37 /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        5726        778     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4738       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3564       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3259       1896      54  VNPT-AS-VN VNPT Corp, VN
  7713        3014        912     562  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2509       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2350      11103     553  KIXS-AS-KR Korea Telecom, KR
  9498        2280        450     231  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2136        441     190  TATACOMM-AS TATA Communications formerl
  9394        2046       4913      16  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        4675        310     772  CABLEONE, US
 16509        4418       9023    2031  AMAZON-02, US
  7155        4035        264      32  VIASAT-SP-BACKBONE, US
 22773        3729       2994     198  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3346       1323      82  SHAW, CA
 16625        3166       1654    2251  AKAMAI-AS, US
   209        2512       5059     512  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2476        368     107  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2312       2981    1625  FRONTIER-FRTR, US
 20115        2164       2895     506  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
 12479        6233       1668     143  UNI2-AS, ES
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  8551        3416        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3270       3347     202  AKAMAI-ASN1, EU
 12389        2847       2279     884  ROSTELECOM-AS, RU
 47331        2342        407    1755  TTNET, TR
  9009        2185        226    1190  M247, GB
 34984        2153        352     580  TELLCOM-AS, TR
 13188        1611        100      26  TRIOLAN, UA
 58224        1364        850     544  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        8145       3441     596  Uninet S.A. de C.V., MX
 10620        3405        529     532  Telmex Colombia S.A., CO
 11830        2562        369      63  Instituto Costarricense de Electricidad
  7303        1478        952     267  Telecom Argentina S.A., AR
  6503        1470        312     474  Axtel, S.A.B. de C.V., MX
 13999        1467        425     397  Mega Cable, S.A. de C.V., MX
 28573        1346       2256     230  CLARO S.A., BR
  3816        1163        576     166  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1146        379      39  Telefonica del Peru S.A.A., PE
 11664        1006        213     418  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        1573        393      22  LINKdotNET-AS, EG
 24835        1271        468      27  RAYA-AS, EG
 36992        1218       1529     131  ETISALAT-MISR, EG
 36903         918        480      94  MT-MPLS, MA
 29571         711         68      12  ORANGE-COTE-IVOIRE, CI
  6713         552       1863      34  IAM-AS, MA
 15399         488         46      16  WANANCHI-, KE
 37342         476         32       1  MOVITEL, MZ
 36935         446        522      40  Vodafone-, EG
 36914         371         82       3  KENET-AS, 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        8145       3441     596  Uninet S.A. de C.V., MX
 12479        6233       1668     143  UNI2-AS, ES
  7545        5726        778     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4738       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4675        310     772  CABLEONE, US
 16509        4418       9023    2031  AMAZON-02, US
  7155        4035        264      32  VIASAT-SP-BACKBONE, US
 22773        3729       2994     198  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  7552        3564       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        6233         6090  UNI2-AS, ES
  7545        5726         5052  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4738         4665  ERX-CERNET-BKB China Education and Research Net
  7155        4035         4003  VIASAT-SP-BACKBONE, US
 11492        4675         3903  CABLEONE, US
 39891        3652         3631  ALJAWWALSTC-AS, SA
  7552        3564         3543  VIETEL-AS-AP Viettel Group, VN
 22773        3729         3531  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        3416         3371  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  6327        3346         3264  SHAW, CA

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24               174  COGENT-174, US
    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
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, US
    393489  UNALLOCATED  12.7.109.0/24             7018  ATT-INTERNET4, US
     46505  UNALLOCATED  12.7.131.0/24             7018  ATT-INTERNET4, US
     15132  UNALLOCATED  12.9.150.0/24             1239  SPRINTLINK, 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
23.141.0.0/24        Origin:    395350  UNASSIGNED
                    Transit:     11426  TWC-11426-CAROLINAS, US
23.142.80.0/24       Origin:    397294  UNASSIGNED
                    Transit:    398559  TUNBROKER, 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
27.126.156.0/23      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     
/13:577     /14:1170    /15:1929    /16:13461   /17:8266    /18:13983   
/19:25641   /20:41466   /21:50024   /22:102852  /23:87036   /24:481888  
/25:1239    /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        5198        6233  UNI2-AS, ES
 11492        3798        4675  CABLEONE, US
  6327        3143        3346  SHAW, CA
  7155        3123        4035  VIASAT-SP-BACKBONE, US
  8551        2876        3416  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2856        3729  ASN-CXA-ALL-CCI-22773-RDC, US
  8151        2850        8145  Uninet S.A. de C.V., MX
 39891        2801        3652  ALJAWWALSTC-AS, SA
 30036        2219        2476  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        1995        2312  FRONTIER-FRTR, US

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

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

   1:1884      2:1207      3:33        4:19        5:3593      6:53     
   8:1487      9:1        11:1        12:1759     13:343      14:2382   
  15:72       16:12       17:304      18:91       20:113      23:4020   
  24:2341     25:3        27:2340     31:2155     32:114      34:1      
  35:41       36:1067     37:3473     38:1929     39:439      40:150    
  41:3801     42:626      43:2133     44:227      45:14894    46:3597   
  47:321      49:1574     50:1671     51:89       52:1127     54:219    
  55:717      56:6        57:53       58:1792     59:1165     60:815    
  61:2330     62:2228     63:2008     64:5285     65:2390     66:5111   
  67:2932     68:1177     69:4090     70:1406     71:684      72:2998   
  74:2546     75:1462     76:689      77:1989     78:2124     79:2658   
  80:2039     81:1618     82:1293     83:1071     84:1267     85:2768   
  86:613      87:1793     88:1432     89:2871     90:386      91:7132   
  92:1605     93:2531     94:2849     95:3604     96:1240     97:341    
  98:955      99:979     100:88      101:1025    102:1138    103:24813  
 104:3606    105:383     106:901     107:2146    108:692     109:3725   
 110:1984    111:2317    112:1660    113:1514    114:1530    115:1846   
 116:1851    117:2096    118:2254    119:1789    120:874     121:1023   
 122:2293    123:2112    124:1617    125:2144    128:1367    129:1241   
 130:760     131:1924    132:753     133:312     134:1376    135:329    
 136:670     137:893     138:2318    139:1142    140:766     141:1146   
 142:989     143:1240    144:1205    145:324     146:1365    147:1226   
 148:2164    149:1239    150:755     151:1322    152:1572    153:439    
 154:3310    155:1281    156:2471    157:1120    158:893     159:2003   
 160:1993    161:1073    162:3184    163:911     164:1514    165:1318   
 166:592     167:1715    168:3592    169:629     170:4288    171:771    
 172:2001    173:2936    174:959     175:1062    176:2882    177:4311   
 178:2764    179:1892    180:2267    181:2556    182:3151    183:1486   
 184:2431    185:17254   186:3952    187:3078    188:3299    189:2686   
 190:9113    191:1378    192:10575   193:7794    194:6343    195:4556   
 196:3148    197:2218    198:6035    199:5917    200:7327    201:5236   
 202:10552   203:10176   204:4651    205:3077    206:3260    207:3289   
 208:3997    209:4529    210:4198    211:2080    212:3530    213:3313   
 214:1194    215:60      216:6146    217:2484    218:853     219:629    
 220:2037    221:919     222:968     223:1675   

End of report


More information about the NANOG mailing list