[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 16 18:03:35 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 17 Oct, 2020

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

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

BGP routing table entries examined:                              826808
    Prefixes after maximum aggregation (per Origin AS):          316287
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      398073
Total ASes present in the Internet Routing Table:                 69668
    Prefixes per ASN:                                             11.87
Origin-only ASes present in the Internet Routing Table:           59882
Origin ASes announcing only one prefix:                           24808
Transit ASes present in the Internet Routing Table:                9786
Transit-only ASes present in the Internet Routing Table:            303
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:               951
    Number of instances of unregistered ASNs:                       952
Number of 32-bit ASNs allocated by the RIRs:                      33809
Number of 32-bit ASNs visible in the Routing Table:               27980
Prefixes from 32-bit ASNs in the Routing Table:                  127729
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            520
Number of addresses announced to Internet:                   2862122496
    Equivalent to 170 /8s, 152 /16s and 134 /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:      278788

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

Prefixes being announced by APNIC Region ASes:                   215877
    Total APNIC prefixes after maximum aggregation:               63380
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          211415
    Unique aggregates announced from the APNIC address blocks:    86745
APNIC Region origin ASes present in the Internet Routing Table:   10936
    APNIC Prefixes per ASN:                                       19.33
APNIC Region origin ASes announcing only one prefix:               3078
APNIC Region transit ASes present in the Internet Routing Table:   1591
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:   6048
Number of APNIC addresses announced to Internet:              778814848
    Equivalent to 46 /8s, 107 /16s and 197 /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:                    241443
    Total ARIN prefixes after maximum aggregation:               111305
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           239298
    Unique aggregates announced from the ARIN address blocks:    116619
ARIN Region origin ASes present in the Internet Routing Table:    18628
    ARIN Prefixes per ASN:                                        12.85
ARIN Region origin ASes announcing only one prefix:                6787
ARIN Region transit ASes present in the Internet Routing Table:    1906
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:    3483
Number of ARIN addresses announced to Internet:              1090539008
    Equivalent to 65 /8s, 0 /16s and 78 /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:                    233043
    Total RIPE prefixes after maximum aggregation:               110244
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           229154
    Unique aggregates announced from the RIPE address blocks:    136240
RIPE Region origin ASes present in the Internet Routing Table:    27444
    RIPE Prefixes per ASN:                                         8.35
RIPE Region origin ASes announcing only one prefix:               11839
RIPE Region transit ASes present in the Internet Routing Table:    3882
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9585
Number of RIPE addresses announced to Internet:               709273984
    Equivalent to 42 /8s, 70 /16s and 169 /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:                  111603
    Total LACNIC prefixes after maximum aggregation:              25891
    LACNIC Deaggregation factor:                                   4.31
Prefixes being announced from the LACNIC address blocks:         112763
    Unique aggregates announced from the LACNIC address blocks:   47880
LACNIC Region origin ASes present in the Internet Routing Table:  10545
    LACNIC Prefixes per ASN:                                      10.69
LACNIC Region origin ASes announcing only one prefix:              2611
LACNIC Region transit ASes present in the Internet Routing Table:  1956
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8137
Number of LACNIC addresses announced to Internet:             174389248
    Equivalent to 10 /8s, 100 /16s and 248 /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:                  23890
    Total AfriNIC prefixes after maximum aggregation:              4744
    AfriNIC Deaggregation factor:                                  5.04
Prefixes being announced from the AfriNIC address blocks:         33658
    Unique aggregates announced from the AfriNIC address blocks:  10158
AfriNIC Region origin ASes present in the Internet Routing Table:  1413
    AfriNIC Prefixes per ASN:                                     23.82
AfriNIC Region origin ASes announcing only one prefix:              493
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:  727
Number of AfriNIC addresses announced to Internet:            108644864
    Equivalent to 6 /8s, 121 /16s and 202 /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        5714        775     681  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4748       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3570       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3245       1896      51  VNPT-AS-VN VNPT Corp, VN
  7713        2714        829     613  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2558       9043      60  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        2141        441     191  TATACOMM-AS TATA Communications formerl
  9394        2042       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        4627        309     779  CABLEONE, US
 16509        4353       8633    2005  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3666       2988     187  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3336       1323      81  SHAW, CA
 16625        3136       1656    2253  AKAMAI-AS, US
   209        2522       5060     518  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2469        367     126  MEDIACOM-ENTERPRISE-BUSINESS, US
 26484        2379        149     312  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        6208       1652     139  UNI2-AS, ES
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  8551        3471        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3213       2277     964  AKAMAI-ASN1, EU
 12389        2781       2277     867  ROSTELECOM-AS, RU
 47331        2322        402    1762  TTNET, TR
 34984        2199        355     573  TELLCOM-AS, TR
  9009        2162        228    1168  M247, GB
 13188        1610        100      31  TRIOLAN, UA
 61317        1330        155     589  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        8057       3326     604  Uninet S.A. de C.V., MX
 10620        3394        530     526  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        1481        952     267  Telecom Argentina S.A., AR
 13999        1475        460     389  Mega Cable, S.A. de C.V., MX
 28573        1350       2253     223  CLARO S.A., BR
  3816        1160        576     165  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1144        379      39  Telefonica del Peru S.A.A., PE
 11664         984        211     408  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        1445        393      22  LINKdotNET-AS, EG
 36992        1195       1528     130  ETISALAT-MISR, EG
 24835        1110        476      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         481         32       1  MOVITEL, MZ
 36935         446        519      37  Vodafone-, EG
 36914         349         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        8057       3326     604  Uninet S.A. de C.V., MX
 12479        6208       1652     139  UNI2-AS, ES
  7545        5714        775     681  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4748       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4627        309     779  CABLEONE, US
 16509        4353       8633    2005  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3666       2988     187  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  7552        3570       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        6208         6069  UNI2-AS, ES
  7545        5714         5033  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4748         4675  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4002  VIASAT-SP-BACKBONE, US
 11492        4627         3848  CABLEONE, US
 39891        3652         3631  ALJAWWALSTC-AS, SA
  7552        3570         3549  VIETEL-AS-AP Viettel Group, VN
 22773        3666         3479  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        3471         3426  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  6327        3336         3255  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      /11:100     /12:288     
/13:577     /14:1169    /15:1936    /16:13470   /17:8292    /18:14020   
/19:25612   /20:40989   /21:50038   /22:102610  /23:86519   /24:479844  
/25:1282    /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        5173        6208  UNI2-AS, ES
 11492        3735        4627  CABLEONE, US
  6327        3134        3336  SHAW, CA
  7155        3122        4034  VIASAT-SP-BACKBONE, US
  8551        2930        3471  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2831        3666  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3652  ALJAWWALSTC-AS, SA
  8151        2793        8057  Uninet S.A. de C.V., MX
 30036        2212        2469  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)
----------------------------------------------

   1:1634      2:1140      3:33        4:19        5:3594      6:54     
   8:1470      9:1        11:1        12:1769     13:345      14:2362   
  15:72       16:10       17:295      18:89       20:111      23:4047   
  24:2343     25:3        27:2330     31:2163     32:114      34:1      
  35:44       36:1000     37:3488     38:1887     39:465      40:150    
  41:3813     42:610      43:2138     44:219      45:14726    46:3556   
  47:320      49:1541     50:1663     51:105      52:1117     54:222    
  55:706      56:6        57:54       58:1597     59:1148     60:806    
  61:2321     62:2170     63:2019     64:5287     65:2384     66:5088   
  67:2893     68:1168     69:4069     70:1396     71:677      72:2999   
  74:2545     75:1455     76:678      77:1976     78:2131     79:2648   
  80:2053     81:1635     82:1322     83:1153     84:1253     85:2770   
  86:571      87:1800     88:1452     89:2869     90:378      91:7172   
  92:1570     93:2510     94:2813     95:3638     96:1236     97:338    
  98:938      99:981     100:87      101:1021    102:1099    103:24586  
 104:3568    105:366     106:910     107:2114    108:694     109:3762   
 110:1979    111:2346    112:1693    113:1472    114:1525    115:1834   
 116:1828    117:2111    118:2191    119:1742    120:883     121:1045   
 122:2562    123:2069    124:1614    125:2135    128:1380    129:1253   
 130:743     131:1916    132:749     133:308     134:1371    135:329    
 136:655     137:883     138:2314    139:1345    140:746     141:1100   
 142:982     143:1211    144:1146    145:347     146:1369    147:1248   
 148:2168    149:1213    150:762     151:1327    152:1563    153:437    
 154:3336    155:1173    156:2489    157:1116    158:887     159:2018   
 160:1980    161:1079    162:3194    163:897     164:1521    165:1302   
 166:593     167:1675    168:3545    169:616     170:4373    171:776    
 172:1997    173:2889    174:971     175:1046    176:2735    177:4244   
 178:2724    179:1885    180:2252    181:2554    182:3111    183:1456   
 184:2437    185:17118   186:3924    187:3021    188:3307    189:2662   
 190:9090    191:1468    192:10557   193:7758    194:6331    195:4557   
 196:3154    197:2149    198:6059    199:5922    200:7331    201:5287   
 202:10523   203:10202   204:4644    205:3086    206:3215    207:3263   
 208:3995    209:4507    210:4217    211:2080    212:3528    213:3272   
 214:1185    215:60      216:6115    217:2475    218:852     219:615    
 220:2063    221:914     222:979     223:1650   

End of report



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