[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 6 Aou 18:02:51 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 07 Aug, 2021

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

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

BGP routing table entries examined:                              858507
    Prefixes after maximum aggregation (per Origin AS):          325171
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      412640
Total ASes present in the Internet Routing Table:                 71734
    Prefixes per ASN:                                             11.97
Origin-only ASes present in the Internet Routing Table:           61663
Origin ASes announcing only one prefix:                           25430
Transit ASes present in the Internet Routing Table:               10071
Transit-only ASes present in the Internet Routing Table:            330
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      54
    Max AS path prepend of ASN ( 48366)                              51
Prefixes from unregistered ASNs in the Routing Table:              1071
    Number of instances of unregistered ASNs:                      1077
Number of 32-bit ASNs allocated by the RIRs:                      36808
Number of 32-bit ASNs visible in the Routing Table:               30644
Prefixes from 32-bit ASNs in the Routing Table:                  142180
Number of bogon 32-bit ASNs visible in the Routing Table:            26
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            519
Number of addresses announced to Internet:                   3039667968
    Equivalent to 181 /8s, 45 /16s and 167 /24s
    Percentage of available address space announced:               82.1
    Percentage of allocated address space announced:               82.1
    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:      285316

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

Prefixes being announced by APNIC Region ASes:                   230457
    Total APNIC prefixes after maximum aggregation:               65961
    APNIC Deaggregation factor:                                    3.49
Prefixes being announced from the APNIC address blocks:          225882
    Unique aggregates announced from the APNIC address blocks:    91010
APNIC Region origin ASes present in the Internet Routing Table:   11824
    APNIC Prefixes per ASN:                                       19.10
APNIC Region origin ASes announcing only one prefix:               3352
APNIC Region transit ASes present in the Internet Routing Table:   1688
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         37
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6999
Number of APNIC addresses announced to Internet:              773736192
    Equivalent to 46 /8s, 30 /16s and 71 /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, 131072-147769
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:                    251200
    Total ARIN prefixes after maximum aggregation:               115100
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           250776
    Unique aggregates announced from the ARIN address blocks:    119453
ARIN Region origin ASes present in the Internet Routing Table:    18877
    ARIN Prefixes per ASN:                                        13.28
ARIN Region origin ASes announcing only one prefix:                6863
ARIN Region transit ASes present in the Internet Routing Table:    1947
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          28
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4039
Number of ARIN addresses announced to Internet:              1270036352
    Equivalent to 75 /8s, 179 /16s and 55 /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:                    238666
    Total RIPE prefixes after maximum aggregation:               111665
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           235179
    Unique aggregates announced from the RIPE address blocks:    143923
RIPE Region origin ASes present in the Internet Routing Table:    27998
    RIPE Prefixes per ASN:                                         8.40
RIPE Region origin ASes announcing only one prefix:               12030
RIPE Region transit ASes present in the Internet Routing Table:    3900
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          54
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10326
Number of RIPE addresses announced to Internet:               711048576
    Equivalent to 42 /8s, 97 /16s and 189 /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:                  111106
    Total LACNIC prefixes after maximum aggregation:              26557
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:         112165
    Unique aggregates announced from the LACNIC address blocks:   47159
LACNIC Region origin ASes present in the Internet Routing Table:  10779
    LACNIC Prefixes per ASN:                                      10.41
LACNIC Region origin ASes announcing only one prefix:              2659
LACNIC Region transit ASes present in the Internet Routing Table:  2078
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:  8435
Number of LACNIC addresses announced to Internet:             176104704
    Equivalent to 10 /8s, 127 /16s and 37 /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:                  26005
    Total AfriNIC prefixes after maximum aggregation:              5148
    AfriNIC Deaggregation factor:                                  5.05
Prefixes being announced from the AfriNIC address blocks:         33986
    Unique aggregates announced from the AfriNIC address blocks:  10639
AfriNIC Region origin ASes present in the Internet Routing Table:  1513
    AfriNIC Prefixes per ASN:                                     22.46
AfriNIC Region origin ASes announcing only one prefix:              525
AfriNIC Region transit ASes present in the Internet Routing Table:  301
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       32
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  845
Number of AfriNIC addresses announced to Internet:            108407808
    Equivalent to 6 /8s, 118 /16s and 44 /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
  9808        7576       9000      57  CMNET-GD Guangdong Mobile Communication
  7545        5817        785     676  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4709       4192      74  ERX-CERNET-BKB China Education and Rese
  7552        3586       1330      20  VIETEL-AS-AP Viettel Group, VN
  7713        3532       1023      56  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        2802       1897      55  VNPT-AS-VN VNPT Corp, VN
  4766        2473      11121     570  KIXS-AS-KR Korea Telecom, KR
  9498        2365        499     248  BBIL-AP BHARTI Airtel Ltd., IN
 45090        2125       1197      73  CNNIC-TENCENT-NET-AP Shenzhen Tencent C
  4755        2116        437     192  TATACOMM-AS TATA Communications formerl

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        5284       9643    2371  AMAZON-02, US
 11492        4744        313     779  CABLEONE, US
  7155        3983        264      32  VIASAT-SP-BACKBONE, US
 22773        3973       3014     275  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3551       1832    2465  AKAMAI-AS, US
  6327        3368       1317      68  SHAW, CA
 30036        2563        373     274  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2518       5029     456  CENTURYLINK-US-LEGACY-QWEST, US
  5972        2288        486     799  DNIC-ASBLK-05800-06055, US
 20115        2245       3015     509  CHARTER-20115, US

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

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 12479        6799       1726     145  UNI2-AS, ES
 20940        3740       3348     216  AKAMAI-ASN1, NL
 39891        3267        187      22  ALJAWWALSTC-AS, SA
  8551        2945        378      39  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2914       2283     897  ROSTELECOM-AS, RU
  9009        2443        255    1308  M247, GB
 34984        2218        357     594  TELLCOM-AS, TR
 61317        1718        277     910  ASDETUK www.heficed.com, GB
 58224        1624        889     562  TCI, IR
 13188        1610        100      27  TRIOLAN, UA

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        8631       3452     588  Uninet S.A. de C.V., MX
 10620        3406        525     650  Telmex Colombia S.A., CO
 11830        2507        369      62  Instituto Costarricense de Electricidad
 13999        1779        411     479  Mega Cable, S.A. de C.V., MX
  6503        1499        359     476  Axtel, S.A.B. de C.V., MX
 28573        1443       2306     230  CLARO S.A., BR
  3816        1240        652     152  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1098        369      22  Telefonica del Peru S.A.A., PE
 26615        1091       2351     134  TIM SA, BR
 11664         979        193     437  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        1650        393      22  LINKdotNET-AS, EG
 24835        1458        499      30  RAYA-AS, EG
 36992        1306       1489     267  ETISALAT-MISR, EG
 36903        1183        537     110  MT-MPLS, MA
 29571         734         68      11  ORANGE-COTE-IVOIRE, CI
  6713         613       1863      34  IAM-AS, MA
 36935         570        522      40  Vodafone-, EG
 15399         500         49      28  WANANCHI-, KE
 37342         475         32       1  MOVITEL, MZ
  2018         329        319      74  TENET-1, ZA

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        8631       3452     588  Uninet S.A. de C.V., MX
  9808        7576       9000      57  CMNET-GD Guangdong Mobile Communication
 12479        6799       1726     145  UNI2-AS, ES
  7545        5817        785     676  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        5284       9643    2371  AMAZON-02, US
 11492        4744        313     779  CABLEONE, US
  4538        4709       4192      74  ERX-CERNET-BKB China Education and Rese
  7155        3983        264      32  VIASAT-SP-BACKBONE, US
 22773        3973       3014     275  ASN-CXA-ALL-CCI-22773-RDC, US
 20940        3740       3348     216  AKAMAI-ASN1, NL

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

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
  9808        7576         7519  CMNET-GD Guangdong Mobile Communication Co.Ltd.
 12479        6799         6654  UNI2-AS, ES
  7545        5817         5141  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4709         4635  ERX-CERNET-BKB China Education and Research Net
 11492        4744         3965  CABLEONE, US
  7155        3983         3951  VIASAT-SP-BACKBONE, US
 22773        3973         3698  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3586         3566  VIETEL-AS-AP Viettel Group, VN
 20940        3740         3524  AKAMAI-ASN1, NL
  7713        3532         3476  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             46887  LIGHTOWER, US
     18604  UNALLOCATED  8.25.204.0/24             3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     54338  UNALLOCATED  8.33.241.0/24             6461  ZAYO-6461, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, US
     15132  UNALLOCATED  12.9.150.0/24             1239  SPRINTLINK, US
      3577  UNALLOCATED  12.19.197.0/24             209  CENTURYLINK-US-LEGACY-QWEST,

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
27.100.7.0/24        Origin:     56096  UNASSIGNED
                    Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 
27.126.156.0/22      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad No. 14, Jala
27.126.156.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad No. 14, Jala
37.16.88.0/23        Origin:    202245  UNASSIGNED
                    Transit:     28716  RETELIT-AS Internet Service Provider, IT

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        /8:16       /9:13      /10:41      /11:102     /12:305     
/13:589     /14:1194    /15:2004    /16:13443   /17:8276    /18:14012   
/19:25464   /20:42483   /21:50521   /22:106947  /23:91548   /24:500110  
/25:1439    /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        5736        6799  UNI2-AS, ES
 11492        3719        4744  CABLEONE, US
  6327        3175        3368  SHAW, CA
  8151        3137        8631  Uninet S.A. de C.V., MX
  7155        3071        3983  VIASAT-SP-BACKBONE, US
 22773        2969        3973  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2803        3267  ALJAWWALSTC-AS, SA
  8551        2411        2945  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2213        2563  MEDIACOM-ENTERPRISE-BUSINESS, US
 11830        1934        2507  Instituto Costarricense de Electricidad y Telec

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

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

   1:1908      2:1118      3:141       4:20        5:3588      6:82     
   7:5         8:1535      9:1        11:164      12:1740     13:368    
  14:2279     15:96       16:18       17:331      18:104      20:124    
  21:1        22:188      23:4944     24:2413     25:2        27:2512   
  29:19       31:2316     32:116      34:1        35:47       36:1599   
  37:3792     38:2186     39:618      40:186      41:3780     42:968    
  43:2061     44:270      45:15369    46:3663     47:348      48:7      
  49:1614     50:1816     51:101      52:1243     54:217      55:644    
  56:4        57:53       58:1751     59:1203     60:932      61:2337   
  62:2302     63:1963     64:5377     65:2359     66:5005     67:2880   
  68:1167     69:4095     70:1367     71:679      72:3143     74:2614   
  75:1493     76:697      77:2014     78:1649     79:2284     80:1876   
  81:1534     82:1354     83:1137     84:1278     85:2730     86:692    
  87:1815     88:954      89:2979     90:507      91:7388     92:1810   
  93:2537     94:3114     95:3508     96:1292     97:344      98:977    
  99:962     100:93      101:1024    102:1602    103:26660   104:3962   
 105:432     106:796     107:2294    108:734     109:3869    110:2027   
 111:3147    112:1924    113:1410    114:1465    115:1887    116:1885   
 117:2350    118:2325    119:1904    120:1457    121:1056    122:2533   
 123:2158    124:1599    125:2075    128:1329    129:1320    130:893    
 131:1998    132:753     133:362     134:1650    135:303     136:786    
 137:943     138:2396    139:1198    140:762     141:1206    142:1231   
 143:1340    144:1261    145:324     146:1495    147:1368    148:2143   
 149:1482    150:823     151:1067    152:1628    153:422     154:2999   
 155:1337    156:1722    157:1210    158:968     159:2020    160:2317   
 161:1242    162:3391    163:1030    164:1538    165:1400    166:622    
 167:1776    168:3660    169:707     170:4293    171:800     172:2624   
 173:2952    174:1015    175:1092    176:3197    177:4383    178:2950   
 179:1889    180:2250    181:2626    182:3216    183:1997    184:2418   
 185:18682   186:4237    187:3153    188:3339    189:2901    190:8725   
 191:1361    192:10726   193:8280    194:6734    195:4819    196:2884   
 197:2149    198:6037    199:6013    200:7345    201:5206    202:10559  
 203:10073   204:4619    205:3362    206:3698    207:3344    208:4037   
 209:4709    210:4185    211:2339    212:3722    213:3460    214:1202   
 215:56      216:6319    217:2577    218:1203    219:681     220:1975   
 221:954     222:870     223:1964   

End of report


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