[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 12 18:02:33 UTC 2021


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 13 Mar, 2021

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

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

BGP routing table entries examined:                              849542
    Prefixes after maximum aggregation (per Origin AS):          322940
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      405118
Total ASes present in the Internet Routing Table:                 70782
    Prefixes per ASN:                                             12.00
Origin-only ASes present in the Internet Routing Table:           60922
Origin ASes announcing only one prefix:                           25123
Transit ASes present in the Internet Routing Table:                9860
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:                                      47
    Max AS path prepend of ASN ( 17747)                              41
Prefixes from unregistered ASNs in the Routing Table:               996
    Number of instances of unregistered ASNs:                      1000
Number of 32-bit ASNs allocated by the RIRs:                      35352
Number of 32-bit ASNs visible in the Routing Table:               29397
Prefixes from 32-bit ASNs in the Routing Table:                  136778
Number of bogon 32-bit ASNs visible in the Routing Table:            27
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            538
Number of addresses announced to Internet:                   2916667008
    Equivalent to 173 /8s, 216 /16s and 206 /24s
    Percentage of available address space announced:               78.8
    Percentage of allocated address space announced:               78.8
    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:      289248

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

Prefixes being announced by APNIC Region ASes:                   223226
    Total APNIC prefixes after maximum aggregation:               65172
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          219346
    Unique aggregates announced from the APNIC address blocks:    89061
APNIC Region origin ASes present in the Internet Routing Table:   11360
    APNIC Prefixes per ASN:                                       19.31
APNIC Region origin ASes announcing only one prefix:               3234
APNIC Region transit ASes present in the Internet Routing Table:   1602
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         47
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6510
Number of APNIC addresses announced to Internet:              770758400
    Equivalent to 45 /8s, 240 /16s and 215 /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:                    244378
    Total ARIN prefixes after maximum aggregation:               112352
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           245021
    Unique aggregates announced from the ARIN address blocks:    116945
ARIN Region origin ASes present in the Internet Routing Table:    18742
    ARIN Prefixes per ASN:                                        13.07
ARIN Region origin ASes announcing only one prefix:                6804
ARIN Region transit ASes present in the Internet Routing Table:    1920
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:    3758
Number of ARIN addresses announced to Internet:              1152549376
    Equivalent to 68 /8s, 178 /16s and 130 /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:                    242680
    Total RIPE prefixes after maximum aggregation:               113223
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           238433
    Unique aggregates announced from the RIPE address blocks:    140429
RIPE Region origin ASes present in the Internet Routing Table:    27784
    RIPE Prefixes per ASN:                                         8.58
RIPE Region origin ASes announcing only one prefix:               11914
RIPE Region transit ASes present in the Internet Routing Table:    3892
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          33
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10008
Number of RIPE addresses announced to Internet:               710411904
    Equivalent to 42 /8s, 88 /16s and 6 /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:                  112974
    Total LACNIC prefixes after maximum aggregation:              26529
    LACNIC Deaggregation factor:                                   4.26
Prefixes being announced from the LACNIC address blocks:         114120
    Unique aggregates announced from the LACNIC address blocks:   48144
LACNIC Region origin ASes present in the Internet Routing Table:  10731
    LACNIC Prefixes per ASN:                                      10.63
LACNIC Region origin ASes announcing only one prefix:              2664
LACNIC Region transit ASes present in the Internet Routing Table:  2009
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        33
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8331
Number of LACNIC addresses announced to Internet:             174675456
    Equivalent to 10 /8s, 105 /16s and 86 /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:                  25287
    Total AfriNIC prefixes after maximum aggregation:              4897
    AfriNIC Deaggregation factor:                                  5.16
Prefixes being announced from the AfriNIC address blocks:         32084
    Unique aggregates announced from the AfriNIC address blocks:  10069
AfriNIC Region origin ASes present in the Internet Routing Table:  1449
    AfriNIC Prefixes per ASN:                                     22.14
AfriNIC Region origin ASes announcing only one prefix:              507
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:                       38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  790
Number of AfriNIC addresses announced to Internet:            107830784
    Equivalent to 6 /8s, 109 /16s and 94 /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        5717        783     669  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4834       4192      74  ERX-CERNET-BKB China Education and Rese
  9808        4009       9045      60  CMNET-GD Guangdong Mobile Communication
  7552        3529       1330      21  VIETEL-AS-AP Viettel Group, VN
  7713        3515       1014      54  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        2900       1896      55  VNPT-AS-VN VNPT Corp, VN
  4766        2444      11104     567  KIXS-AS-KR Korea Telecom, KR
  9498        2317        483     235  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2144        441     192  TATACOMM-AS TATA Communications formerl
 45090        2080       1045      63  CNNIC-TENCENT-NET-AP Shenzhen Tencent C

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
 16509        4893       9229    2214  AMAZON-02, US
 11492        4743        315     723  CABLEONE, US
  7155        4030        264      32  VIASAT-SP-BACKBONE, US
 22773        3926       2999     252  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3348       1317      72  SHAW, CA
 16625        3309       1725    2354  AKAMAI-AS, US
 30036        2527        371      87  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2511       5057     499  CENTURYLINK-US-LEGACY-QWEST, US
  5650        2350       3000    1642  FRONTIER-FRTR, US
  5972        2201        445     781  DNIC-ASBLK-05800-06055, 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
 47331        7701       1038    3474  TTNET, TR
 12479        6363       1700     146  UNI2-AS, ES
 20940        3534       3347     207  AKAMAI-ASN1, NL
 39891        3266        187      22  ALJAWWALSTC-AS, SA
  8551        3132        379      41  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2882       2284     894  ROSTELECOM-AS, RU
  9009        2454        252    1323  M247, GB
 34984        2180        355     579  TELLCOM-AS, TR
 13188        1611        100      26  TRIOLAN, UA
 58224        1552        878     557  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        8435       3470     581  Uninet S.A. de C.V., MX
 10620        3405        527     612  Telmex Colombia S.A., CO
 11830        2563        369      63  Instituto Costarricense de Electricidad
 13999        1659        436     421  Mega Cable, S.A. de C.V., MX
  7303        1637       1289     291  Telecom Argentina S.A., AR
  6503        1442        311     475  Axtel, S.A.B. de C.V., MX
 28573        1407       2266     221  CLARO S.A., BR
  3816        1212        623     152  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1128        377      39  Telefonica del Peru S.A.A., PE
 11664         996        211     403  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        1578        393      22  LINKdotNET-AS, EG
 24835        1435        482      29  RAYA-AS, EG
 36992        1192       1537     174  ETISALAT-MISR, EG
 36903         977        510     104  MT-MPLS, MA
 29571         705         68      11  ORANGE-COTE-IVOIRE, CI
  6713         539       1863      34  IAM-AS, MA
 36935         500        522      40  Vodafone-, EG
 37342         482         32       1  MOVITEL, MZ
 15399         453         47      17  WANANCHI-, KE
 23889         446        232      15  MauritiusTelecom, MU

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

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151        8435       3470     581  Uninet S.A. de C.V., MX
 47331        7701       1038    3474  TTNET, TR
 12479        6363       1700     146  UNI2-AS, ES
  7545        5717        783     669  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        4893       9229    2214  AMAZON-02, US
  4538        4834       4192      74  ERX-CERNET-BKB China Education and Rese
 11492        4743        315     723  CABLEONE, US
  7155        4030        264      32  VIASAT-SP-BACKBONE, US
  9808        4009       9045      60  CMNET-GD Guangdong Mobile Communication
 22773        3926       2999     252  ASN-CXA-ALL-CCI-22773-RDC, US

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        6363         6217  UNI2-AS, ES
  7545        5717         5048  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4834         4760  ERX-CERNET-BKB China Education and Research Net
 47331        7701         4227  TTNET, TR
 11492        4743         4020  CABLEONE, US
  7155        4030         3998  VIASAT-SP-BACKBONE, US
  9808        4009         3949  CMNET-GD Guangdong Mobile Communication Co.Ltd.
 22773        3926         3674  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3529         3508  VIETEL-AS-AP Viettel Group, VN
  7713        3515         3461  TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID

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
     18604  UNALLOCATED  8.25.204.0/24             3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     46766  UNALLOCATED  8.44.208.0/24             3356  LEVEL3, US
     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:    397881  STINGERS, US
                    Transit:    398481  REDMERCURY, US
23.226.240.0/20      Origin:     40430  UNASSIGNED
                    Transit:       174  COGENT-174, 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        /8:11       /9:12      /10:41      /11:102     /12:291     
/13:575     /14:1181    /15:1940    /16:13497   /17:8294    /18:13778   
/19:25641   /20:42024   /21:50958   /22:105588  /23:89954   /24:494234  
/25:1421    /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
 47331        6880        7701  TTNET, TR
 12479        5321        6363  UNI2-AS, ES
 11492        3798        4743  CABLEONE, US
  6327        3153        3348  SHAW, CA
  7155        3118        4030  VIASAT-SP-BACKBONE, US
  8151        3014        8435  Uninet S.A. de C.V., MX
 22773        2961        3926  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2596        3132  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2238        2527  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1883      2:1160      3:94        4:18        5:3532      6:64     
   7:5         8:1501      9:1        11:36       12:1750     13:360    
  14:2347     15:77       16:15       17:318      18:93       20:130    
  22:188      23:4557     24:2387     25:2        27:2504     31:2261   
  32:113      34:3        35:40       36:1147     37:3722     38:2064   
  39:559      40:151      41:3826     42:918      43:2118     44:240    
  45:15017    46:3648     47:319      49:1624     50:1741     51:91     
  52:1206     54:219      55:783      56:6        57:56       58:1742   
  59:1210     60:886      61:2411     62:2257     63:1971     64:5291   
  65:2384     66:5152     67:2915     68:1173     69:4076     70:1405   
  71:685      72:3220     74:2572     75:1479     76:687      77:2010   
  78:3639     79:2353     80:1823     81:1626     82:1316     83:1105   
  84:1251     85:3219     86:718      87:1780     88:2701     89:2988   
  90:433      91:7250     92:1759     93:2545     94:3031     95:4405   
  96:1252     97:345      98:992      99:970     100:89      101:1046   
 102:1280    103:25599   104:3714    105:424     106:721     107:2227   
 108:702     109:3929    110:2003    111:2624    112:1888    113:1652   
 114:1464    115:1874    116:1885    117:2201    118:2294    119:1917   
 120:1055    121:1087    122:2313    123:2196    124:1592    125:2098   
 128:1362    129:949     130:818     131:2019    132:765     133:354    
 134:1558    135:291     136:734     137:908     138:2297    139:1202   
 140:731     141:1185    142:1105    143:1278    144:1255    145:323    
 146:1391    147:1264    148:2181    149:1446    150:779     151:1087   
 152:1546    153:387     154:2235    155:1367    156:1496    157:1158   
 158:924     159:2045    160:2070    161:1151    162:3231    163:969    
 164:1434    165:1336    166:598     167:1775    168:3542    169:661    
 170:4278    171:761     172:2106    173:2965    174:980     175:1100   
 176:3041    177:4363    178:2890    179:1954    180:2274    181:2625   
 182:3200    183:1643    184:2455    185:17996   186:4199    187:3129   
 188:3311    189:2809    190:8953    191:1480    192:10580   193:7935   
 194:6538    195:4678    196:2888    197:2322    198:6032    199:5991   
 200:7420    201:5344    202:10575   203:10113   204:4646    205:3307   
 206:3491    207:3334    208:3990    209:4628    210:4260    211:2178   
 212:3672    213:3323    214:1208    215:61      216:6165    217:2520   
 218:1053    219:699     220:2067    221:935     222:996     223:1771   


End of report



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