[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 23 18:03:41 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 24 Oct, 2020

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

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

BGP routing table entries examined:                              828025
    Prefixes after maximum aggregation (per Origin AS):          316348
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      396422
Total ASes present in the Internet Routing Table:                 69762
    Prefixes per ASN:                                             11.87
Origin-only ASes present in the Internet Routing Table:           59964
Origin ASes announcing only one prefix:                           24824
Transit ASes present in the Internet Routing Table:                9798
Transit-only ASes present in the Internet Routing Table:            296
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 45582)                              27
Prefixes from unregistered ASNs in the Routing Table:              1002
    Number of instances of unregistered ASNs:                      1003
Number of 32-bit ASNs allocated by the RIRs:                      33909
Number of 32-bit ASNs visible in the Routing Table:               28082
Prefixes from 32-bit ASNs in the Routing Table:                  128197
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:            520
Number of addresses announced to Internet:                   2863361280
    Equivalent to 170 /8s, 171 /16s and 109 /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:      279446

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

Prefixes being announced by APNIC Region ASes:                   216055
    Total APNIC prefixes after maximum aggregation:               63455
    APNIC Deaggregation factor:                                    3.40
Prefixes being announced from the APNIC address blocks:          211698
    Unique aggregates announced from the APNIC address blocks:    86605
APNIC Region origin ASes present in the Internet Routing Table:   10974
    APNIC Prefixes per ASN:                                       19.29
APNIC Region origin ASes announcing only one prefix:               3095
APNIC Region transit ASes present in the Internet Routing Table:   1596
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6091
Number of APNIC addresses announced to Internet:              778992000
    Equivalent to 46 /8s, 110 /16s and 121 /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:                    241575
    Total ARIN prefixes after maximum aggregation:               111414
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           239490
    Unique aggregates announced from the ARIN address blocks:    114834
ARIN Region origin ASes present in the Internet Routing Table:    18649
    ARIN Prefixes per ASN:                                        12.84
ARIN Region origin ASes announcing only one prefix:                6801
ARIN Region transit ASes present in the Internet Routing Table:    1908
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3501
Number of ARIN addresses announced to Internet:              1091743488
    Equivalent to 65 /8s, 18 /16s and 175 /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:                    233497
    Total RIPE prefixes after maximum aggregation:               110079
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           229475
    Unique aggregates announced from the RIPE address blocks:    136482
RIPE Region origin ASes present in the Internet Routing Table:    27462
    RIPE Prefixes per ASN:                                         8.36
RIPE Region origin ASes announcing only one prefix:               11822
RIPE Region transit ASes present in the Internet Routing Table:    3880
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9605
Number of RIPE addresses announced to Internet:               709249408
    Equivalent to 42 /8s, 70 /16s and 73 /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:                  111766
    Total LACNIC prefixes after maximum aggregation:              25934
    LACNIC Deaggregation factor:                                   4.31
Prefixes being announced from the LACNIC address blocks:         112956
    Unique aggregates announced from the LACNIC address blocks:   48007
LACNIC Region origin ASes present in the Internet Routing Table:  10572
    LACNIC Prefixes per ASN:                                      10.68
LACNIC Region origin ASes announcing only one prefix:              2621
LACNIC Region transit ASes present in the Internet Routing Table:  1967
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:  8159
Number of LACNIC addresses announced to Internet:             174292224
    Equivalent to 10 /8s, 99 /16s and 125 /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:                  24128
    Total AfriNIC prefixes after maximum aggregation:              4718
    AfriNIC Deaggregation factor:                                  5.11
Prefixes being announced from the AfriNIC address blocks:         33886
    Unique aggregates announced from the AfriNIC address blocks:  10064
AfriNIC Region origin ASes present in the Internet Routing Table:  1404
    AfriNIC Prefixes per ASN:                                     24.14
AfriNIC Region origin ASes announcing only one prefix:              484
AfriNIC Region transit ASes present in the Internet Routing Table:  291
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:  726
Number of AfriNIC addresses announced to Internet:            108614912
    Equivalent to 6 /8s, 121 /16s and 85 /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        5705        775     679  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4747       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3582       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3260       1896      51  VNPT-AS-VN VNPT Corp, VN
  7713        2712        829     618  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2560       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2351      11103     554  KIXS-AS-KR Korea Telecom, KR
  9498        2303        450     231  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2142        441     191  TATACOMM-AS TATA Communications formerl
  9394        2044       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        4637        310     782  CABLEONE, US
 16509        4370       8635    2006  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3675       2992     189  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3352       1323      81  SHAW, CA
 16625        3135       1658    2249  AKAMAI-AS, US
   209        2519       5060     519  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2466        366     151  MEDIACOM-ENTERPRISE-BUSINESS, US
 26484        2367        148     303  IKGUL-26484, US
  5650        2312       2981    1625  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        6231       1636     141  UNI2-AS, ES
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  8551        3489        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3244       3201     540  AKAMAI-ASN1, EU
 12389        2808       2279     877  ROSTELECOM-AS, RU
 47331        2372        406    1797  TTNET, TR
 34984        2192        355     573  TELLCOM-AS, TR
  9009        2172        226    1180  M247, GB
 13188        1610        100      31  TRIOLAN, UA
 61317        1340        156     595  ASDETUK http://www.heficed.com, GB

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        8078       3328     602  Uninet S.A. de C.V., MX
 10620        3397        530     528  Telmex Colombia S.A., CO
 11830        2563        369      63  Instituto Costarricense de Electricidad
  6503        1594        322     446  Axtel, S.A.B. de C.V., MX
  7303        1480        952     266  Telecom Argentina S.A., AR
 13999        1475        449     384  Mega Cable, S.A. de C.V., MX
 28573        1336       2256     222  CLARO S.A., BR
  3816        1161        575     167  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1149        379      39  Telefonica del Peru S.A.A., PE
 11664        1010        213     413  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        1571        393      22  LINKdotNET-AS, EG
 36992        1200       1528     129  ETISALAT-MISR, EG
 24835        1115        466      29  RAYA-AS, EG
 36903         918        480      94  MT-MPLS, MA
 29571         700         68      12  ORANGE-COTE-IVOIRE, CI
  6713         553       1863      34  IAM-AS, MA
 15399         491         46      15  WANANCHI-, KE
 37342         476         32       1  MOVITEL, MZ
 36935         446        519      37  Vodafone-, EG
 36914         348         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        8078       3328     602  Uninet S.A. de C.V., MX
 12479        6231       1636     141  UNI2-AS, ES
  7545        5705        775     679  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4747       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4637        310     782  CABLEONE, US
 16509        4370       8635    2006  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3675       2992     189  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  7552        3582       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        6231         6090  UNI2-AS, ES
  7545        5705         5026  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4747         4674  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4002  VIASAT-SP-BACKBONE, US
 11492        4637         3855  CABLEONE, US
 39891        3652         3631  ALJAWWALSTC-AS, SA
  7552        3582         3561  VIETEL-AS-AP Viettel Group, VN
 22773        3675         3486  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        3489         3444  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  6327        3352         3271  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
     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
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, 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
23.157.0.0/24        Origin:    395101  UNASSIGNED
                    Transit:     33657  CMCS, 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        /8:9        /9:13      /10:40      /11:101     /12:291     
/13:579     /14:1171    /15:1937    /16:13471   /17:8283    /18:14022   
/19:25667   /20:41173   /21:50071   /22:102682  /23:86749   /24:480488  
/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        5197        6231  UNI2-AS, ES
 11492        3743        4637  CABLEONE, US
  6327        3150        3352  SHAW, CA
  7155        3122        4034  VIASAT-SP-BACKBONE, US
  8551        2948        3489  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2836        3675  ASN-CXA-ALL-CCI-22773-RDC, US
  8151        2812        8078  Uninet S.A. de C.V., MX
 39891        2801        3652  ALJAWWALSTC-AS, SA
 30036        2209        2466  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)
----------------------------------------------

   1:1639      2:1150      3:33        4:19        5:3605      6:54     
   8:1489      9:1        11:1        12:1770     13:345      14:2352   
  15:72       16:10       17:303      18:90       20:111      23:4057   
  24:2338     25:2        27:2325     31:2155     32:114      34:1      
  35:43       36:1002     37:3494     38:1897     39:466      40:150    
  41:3826     42:611      43:2144     44:222      45:14835    46:3570   
  47:320      49:1570     50:1669     51:93       52:1117     54:222    
  55:698      56:6        57:53       58:1609     59:1161     60:805    
  61:2326     62:2194     63:2011     64:5292     65:2377     66:5104   
  67:2901     68:1166     69:4081     70:1398     71:676      72:3010   
  74:2544     75:1456     76:683      77:1977     78:2136     79:2688   
  80:2050     81:1627     82:1313     83:1159     84:1254     85:2807   
  86:622      87:1814     88:1456     89:2880     90:382      91:7167   
  92:1582     93:2514     94:2837     95:3640     96:1236     97:341    
  98:953      99:981     100:87      101:1021    102:1136    103:24677  
 104:3601    105:355     106:914     107:2115    108:696     109:3740   
 110:1985    111:2366    112:1692    113:1494    114:1529    115:1840   
 116:1826    117:2111    118:2191    119:1757    120:871     121:1045   
 122:2316    123:2079    124:1619    125:2142    128:1341    129:1245   
 130:741     131:1926    132:751     133:312     134:1369    135:329    
 136:654     137:889     138:2320    139:1121    140:757     141:1107   
 142:981     143:1224    144:1141    145:353     146:1373    147:1241   
 148:2165    149:1209    150:762     151:1328    152:1565    153:437    
 154:3300    155:1211    156:2495    157:1114    158:886     159:2019   
 160:1989    161:1079    162:3192    163:910     164:1524    165:1304   
 166:594     167:1680    168:3554    169:620     170:4391    171:770    
 172:1998    173:2900    174:969     175:1047    176:2746    177:4287   
 178:2760    179:1881    180:2260    181:2559    182:3178    183:1458   
 184:2437    185:17169   186:3979    187:3029    188:3246    189:2702   
 190:9094    191:1479    192:10567   193:7750    194:6345    195:4556   
 196:3162    197:2186    198:6039    199:5934    200:7334    201:5282   
 202:10535   203:10205   204:4634    205:3098    206:3212    207:3260   
 208:3986    209:4505    210:4213    211:2080    212:3528    213:3279   
 214:1187    215:60      216:6092    217:2472    218:852     219:619    
 220:2061    221:916     222:973     223:1656   

End of report


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