[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 9 Oct 18:03:51 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 10 Oct, 2020

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

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

BGP routing table entries examined:                              826062
    Prefixes after maximum aggregation (per Origin AS):          316047
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      398199
Total ASes present in the Internet Routing Table:                 69603
    Prefixes per ASN:                                             11.87
Origin-only ASes present in the Internet Routing Table:           59808
Origin ASes announcing only one prefix:                           24791
Transit ASes present in the Internet Routing Table:                9795
Transit-only ASes present in the Internet Routing Table:            304
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:               947
    Number of instances of unregistered ASNs:                       948
Number of 32-bit ASNs allocated by the RIRs:                      33749
Number of 32-bit ASNs visible in the Routing Table:               27899
Prefixes from 32-bit ASNs in the Routing Table:                  127659
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:            518
Number of addresses announced to Internet:                   2861122816
    Equivalent to 170 /8s, 137 /16s and 69 /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:      278612

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

Prefixes being announced by APNIC Region ASes:                   215567
    Total APNIC prefixes after maximum aggregation:               63344
    APNIC Deaggregation factor:                                    3.40
Prefixes being announced from the APNIC address blocks:          211259
    Unique aggregates announced from the APNIC address blocks:    86600
APNIC Region origin ASes present in the Internet Routing Table:   10908
    APNIC Prefixes per ASN:                                       19.37
APNIC Region origin ASes announcing only one prefix:               3069
APNIC Region transit ASes present in the Internet Routing Table:   1584
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6023
Number of APNIC addresses announced to Internet:              778576512
    Equivalent to 46 /8s, 104 /16s and 34 /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:                    241395
    Total ARIN prefixes after maximum aggregation:               111284
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           239104
    Unique aggregates announced from the ARIN address blocks:    116911
ARIN Region origin ASes present in the Internet Routing Table:    18600
    ARIN Prefixes per ASN:                                        12.86
ARIN Region origin ASes announcing only one prefix:                6768
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:    3461
Number of ARIN addresses announced to Internet:              1089748224
    Equivalent to 64 /8s, 244 /16s and 61 /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:                    232714
    Total RIPE prefixes after maximum aggregation:               110090
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           228843
    Unique aggregates announced from the RIPE address blocks:    136172
RIPE Region origin ASes present in the Internet Routing Table:    27439
    RIPE Prefixes per ASN:                                         8.34
RIPE Region origin ASes announcing only one prefix:               11844
RIPE Region transit ASes present in the Internet Routing Table:    3887
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:    9558
Number of RIPE addresses announced to Internet:               709215616
    Equivalent to 42 /8s, 69 /16s and 197 /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:                  111522
    Total LACNIC prefixes after maximum aggregation:              25869
    LACNIC Deaggregation factor:                                   4.31
Prefixes being announced from the LACNIC address blocks:         112696
    Unique aggregates announced from the LACNIC address blocks:   47831
LACNIC Region origin ASes present in the Internet Routing Table:  10540
    LACNIC Prefixes per ASN:                                      10.69
LACNIC Region origin ASes announcing only one prefix:              2613
LACNIC Region transit ASes present in the Internet Routing Table:  1969
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:  8130
Number of LACNIC addresses announced to Internet:             174398976
    Equivalent to 10 /8s, 101 /16s and 30 /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:                  23916
    Total AfriNIC prefixes after maximum aggregation:              4738
    AfriNIC Deaggregation factor:                                  5.05
Prefixes being announced from the AfriNIC address blocks:         33642
    Unique aggregates announced from the AfriNIC address blocks:  10257
AfriNIC Region origin ASes present in the Internet Routing Table:  1415
    AfriNIC Prefixes per ASN:                                     23.78
AfriNIC Region origin ASes announcing only one prefix:              497
AfriNIC Region transit ASes present in the Internet Routing Table:  288
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  727
Number of AfriNIC addresses announced to Internet:            108678912
    Equivalent to 6 /8s, 122 /16s and 79 /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        5689        769     679  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4700       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3591       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3243       1896      51  VNPT-AS-VN VNPT Corp, VN
  7713        2715        829     620  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2551       9043      60  CMNET-GD Guangdong Mobile Communication
  4766        2349      11103     554  KIXS-AS-KR Korea Telecom, KR
  9498        2304        450     231  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2143        441     193  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        4578        306     797  CABLEONE, US
 16509        4355       8631    1991  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3657       2985     182  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3351       1323      82  SHAW, CA
 16625        3089       1625    2219  AKAMAI-AS, US
   209        2523       5060     518  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2466        366     134  MEDIACOM-ENTERPRISE-BUSINESS, US
 26484        2388        149     312  IKGUL-26484, US
  5650        2313       2982    1626  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        6202       1652     139  UNI2-AS, ES
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  8551        3438        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3206       2217    1027  AKAMAI-ASN1, EU
 12389        2781       2277     868  ROSTELECOM-AS, RU
 47331        2264        399    1720  TTNET, TR
 34984        2198        355     572  TELLCOM-AS, TR
  9009        2153        228    1164  M247, GB
 13188        1609        100      32  TRIOLAN, UA
 61317        1332        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        8117       3330     604  Uninet S.A. de C.V., MX
 10620        3387        529     527  Telmex Colombia S.A., CO
 11830        2564        369      63  Instituto Costarricense de Electricidad
  6503        1594        322     446  Axtel, S.A.B. de C.V., MX
  7303        1482        953     268  Telecom Argentina S.A., AR
 13999        1461        460     389  Mega Cable, S.A. de C.V., MX
 28573        1348       2251     223  CLARO S.A., BR
  3816        1157        577     162  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1146        379      39  Telefonica del Peru S.A.A., PE
 11664         985        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        1403        393      22  LINKdotNET-AS, EG
 36992        1187       1527     125  ETISALAT-MISR, EG
 24835        1106        468      28  RAYA-AS, EG
 36903         918        480      94  MT-MPLS, MA
 29571         700         68      12  ORANGE-COTE-IVOIRE, CI
  6713         552       1863      34  IAM-AS, MA
 15399         492         46      15  WANANCHI-, KE
 37342         481         32       1  MOVITEL, MZ
 36935         450        519      37  Vodafone-, EG
 36914         350         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        8117       3330     604  Uninet S.A. de C.V., MX
 12479        6202       1652     139  UNI2-AS, ES
  7545        5689        769     679  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4700       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4578        306     797  CABLEONE, US
 16509        4355       8631    1991  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3657       2985     182  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  7552        3591       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        6202         6063  UNI2-AS, ES
  7545        5689         5010  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4700         4627  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4002  VIASAT-SP-BACKBONE, US
 11492        4578         3781  CABLEONE, US
 39891        3652         3631  ALJAWWALSTC-AS, SA
  7552        3591         3570  VIETEL-AS-AP Viettel Group, VN
 22773        3657         3475  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        3438         3393  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  6327        3351         3269  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
     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
     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

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:     10753  LVLT-10753, US
                    Transit:      3356  LEVEL3, 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        /9:12      /10:39      /11:100     /12:288     
/13:577     /14:1169    /15:1930    /16:13467   /17:8312    /18:13999   
/19:25626   /20:40928   /21:49881   /22:102544  /23:86342   /24:479563  
/25:1276    /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

   ASN  No of nets  Total ann.  Description
 12479        5167        6202  UNI2-AS, ES
 11492        3695        4578  CABLEONE, US
  6327        3148        3351  SHAW, CA
  7155        3122        4034  VIASAT-SP-BACKBONE, US
  8551        2897        3438  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151        2839        8117  Uninet S.A. de C.V., MX
 22773        2825        3657  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3652  ALJAWWALSTC-AS, SA
 30036        2209        2466  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        1995        2313  FRONTIER-FRTR, US

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

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

   1:1645      2:1139      3:33        4:19        5:3618      6:54     
   8:1484      9:1        11:1        12:1767     13:343      14:2352   
  15:72       16:9        17:297      18:89       20:111      23:4033   
  24:2328     25:3        27:2323     31:2165     32:119      34:1      
  35:43       36:1003     37:3492     38:1896     39:466      40:150    
  41:3797     42:635      43:2136     44:219      45:14743    46:3554   
  47:320      49:1541     50:1649     51:103      52:1117     54:230    
  55:697      56:6        57:54       58:1600     59:1164     60:805    
  61:2319     62:2167     63:2003     64:5273     65:2385     66:5078   
  67:2918     68:1165     69:4072     70:1395     71:677      72:2988   
  74:2562     75:1455     76:674      77:1993     78:2084     79:2630   
  80:2053     81:1632     82:1324     83:1147     84:1254     85:2762   
  86:568      87:1795     88:1455     89:2858     90:371      91:7150   
  92:1577     93:2503     94:2805     95:3638     96:1237     97:337    
  98:937      99:981     100:87      101:1022    102:1098    103:24472  
 104:3582    105:389     106:909     107:2117    108:697     109:3746   
 110:1971    111:2348    112:1691    113:1433    114:1527    115:1833   
 116:1826    117:2107    118:2187    119:1740    120:911     121:1051   
 122:2558    123:2048    124:1633    125:2140    128:1378    129:1248   
 130:736     131:1943    132:752     133:307     134:1365    135:330    
 136:648     137:878     138:2320    139:1311    140:746     141:1101   
 142:982     143:1216    144:1147    145:348     146:1387    147:1245   
 148:2138    149:1203    150:757     151:1325    152:1571    153:437    
 154:3334    155:1269    156:2594    157:1104    158:885     159:1975   
 160:1968    161:1078    162:3196    163:899     164:1520    165:1313   
 166:590     167:1660    168:3546    169:617     170:4382    171:779    
 172:1989    173:2871    174:973     175:1045    176:2794    177:4281   
 178:2709    179:1889    180:2250    181:2563    182:3107    183:1441   
 184:2431    185:17077   186:3952    187:3012    188:3305    189:2677   
 190:9040    191:1476    192:10436   193:7741    194:6306    195:4551   
 196:3162    197:2156    198:6063    199:5930    200:7324    201:5273   
 202:10542   203:10193   204:4643    205:3086    206:3217    207:3263   
 208:3987    209:4505    210:4223    211:2078    212:3526    213:3271   
 214:1186    215:60      216:6130    217:2472    218:853     219:614    
 220:2049    221:914     222:974     223:1654   

End of report


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