[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 18 18:02:41 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 19 Jun, 2021

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

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

BGP routing table entries examined:                              854865
    Prefixes after maximum aggregation (per Origin AS):          322720
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      410094
Total ASes present in the Internet Routing Table:                 71458
    Prefixes per ASN:                                             11.96
Origin-only ASes present in the Internet Routing Table:           61456
Origin ASes announcing only one prefix:                           25403
Transit ASes present in the Internet Routing Table:               10002
Transit-only ASes present in the Internet Routing Table:            321
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:              1081
    Number of instances of unregistered ASNs:                      1087
Number of 32-bit ASNs allocated by the RIRs:                      36367
Number of 32-bit ASNs visible in the Routing Table:               30240
Prefixes from 32-bit ASNs in the Routing Table:                  140421
Number of bogon 32-bit ASNs visible in the Routing Table:            24
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            544
Number of addresses announced to Internet:                   3040562176
    Equivalent to 181 /8s, 59 /16s and 76 /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:      285145

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

Prefixes being announced by APNIC Region ASes:                   229740
    Total APNIC prefixes after maximum aggregation:               65604
    APNIC Deaggregation factor:                                    3.50
Prefixes being announced from the APNIC address blocks:          225492
    Unique aggregates announced from the APNIC address blocks:    90146
APNIC Region origin ASes present in the Internet Routing Table:   11650
    APNIC Prefixes per ASN:                                       19.36
APNIC Region origin ASes announcing only one prefix:               3345
APNIC Region transit ASes present in the Internet Routing Table:   1651
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         32
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6824
Number of APNIC addresses announced to Internet:              775044224
    Equivalent to 46 /8s, 50 /16s and 60 /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:                    248896
    Total ARIN prefixes after maximum aggregation:               113772
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           248952
    Unique aggregates announced from the ARIN address blocks:    118558
ARIN Region origin ASes present in the Internet Routing Table:    18838
    ARIN Prefixes per ASN:                                        13.22
ARIN Region origin ASes announcing only one prefix:                6832
ARIN Region transit ASes present in the Internet Routing Table:    1953
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          35
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3931
Number of ARIN addresses announced to Internet:              1271151360
    Equivalent to 75 /8s, 196 /16s and 59 /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:                    238357
    Total RIPE prefixes after maximum aggregation:               111116
    RIPE Deaggregation factor:                                     2.15
Prefixes being announced from the RIPE address blocks:           234500
    Unique aggregates announced from the RIPE address blocks:    142955
RIPE Region origin ASes present in the Internet Routing Table:    27977
    RIPE Prefixes per ASN:                                         8.38
RIPE Region origin ASes announcing only one prefix:               12029
RIPE Region transit ASes present in the Internet Routing Table:    3890
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:   10241
Number of RIPE addresses announced to Internet:               710601856
    Equivalent to 42 /8s, 90 /16s and 236 /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:                  111032
    Total LACNIC prefixes after maximum aggregation:              26417
    LACNIC Deaggregation factor:                                   4.20
Prefixes being announced from the LACNIC address blocks:         112189
    Unique aggregates announced from the LACNIC address blocks:   47083
LACNIC Region origin ASes present in the Internet Routing Table:  10774
    LACNIC Prefixes per ASN:                                      10.41
LACNIC Region origin ASes announcing only one prefix:              2684
LACNIC Region transit ASes present in the Internet Routing Table:  2048
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:  8420
Number of LACNIC addresses announced to Internet:             175838208
    Equivalent to 10 /8s, 123 /16s and 20 /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:                  25758
    Total AfriNIC prefixes after maximum aggregation:              5073
    AfriNIC Deaggregation factor:                                  5.08
Prefixes being announced from the AfriNIC address blocks:         33188
    Unique aggregates announced from the AfriNIC address blocks:  10868
AfriNIC Region origin ASes present in the Internet Routing Table:  1482
    AfriNIC Prefixes per ASN:                                     22.39
AfriNIC Region origin ASes announcing only one prefix:              513
AfriNIC Region transit ASes present in the Internet Routing Table:  301
Average AfriNIC Region AS path length visible:                      5.2
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  824
Number of AfriNIC addresses announced to Internet:            107490048
    Equivalent to 6 /8s, 104 /16s and 43 /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        7564       8999      55  CMNET-GD Guangdong Mobile Communication
  7545        5799        783     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4758       4192      74  ERX-CERNET-BKB China Education and Rese
  7713        3529       1023      56  TELKOMNET-AS-AP PT Telekomunikasi Indon
  7552        3512       1330      20  VIETEL-AS-AP Viettel Group, VN
 45899        2812       1896      54  VNPT-AS-VN VNPT Corp, VN
  4766        2430      11104     564  KIXS-AS-KR Korea Telecom, KR
  9498        2353        483     246  BBIL-AP BHARTI Airtel Ltd., IN
 45090        2114       1197      71  CNNIC-TENCENT-NET-AP Shenzhen Tencent C
  4755        2110        437     190  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        5160       9381    2280  AMAZON-02, US
 11492        4771        314     654  CABLEONE, US
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3943       3005     252  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3491       1792    2442  AKAMAI-AS, US
  6327        3361       1317      69  SHAW, CA
 30036        2577        372     134  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2544       5034     477  CENTURYLINK-US-LEGACY-QWEST, US
  5972        2251        453     785  DNIC-ASBLK-05800-06055, US
 20115        2168       2929     491  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        6728       1721     143  UNI2-AS, ES
 20940        3655       3347     205  AKAMAI-ASN1, NL
 39891        3266        187      22  ALJAWWALSTC-AS, SA
  8551        3067        378      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2912       2283     897  ROSTELECOM-AS, RU
  9009        2455        258    1319  M247, GB
 34984        2205        355     592  TELLCOM-AS, TR
 61317        1647        267     801  ASDETUK http://www.heficed.com, GB
 13188        1610        100      27  TRIOLAN, UA
 58224        1602        887     560  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        8633       3417     582  Uninet S.A. de C.V., MX
 10620        3414        526     629  Telmex Colombia S.A., CO
 11830        2509        369      62  Instituto Costarricense de Electricidad
 13999        1741        430     450  Mega Cable, S.A. de C.V., MX
  6503        1450        311     476  Axtel, S.A.B. de C.V., MX
 28573        1391       2283     231  CLARO S.A., BR
  3816        1239        650     151  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1118        374      31  Telefonica del Peru S.A.A., PE
 11664        1010        208     420  Techtel LMDS Comunicaciones Interactiva
 11172         963        111      69  Alestra, S. de R.L. de C.V., MX

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        1632        393      22  LINKdotNET-AS, EG
 24835        1430        454      27  RAYA-AS, EG
 36992        1304       1489     266  ETISALAT-MISR, EG
 36903        1183        537     110  MT-MPLS, MA
 29571         746         68      12  ORANGE-COTE-IVOIRE, CI
  6713         612       1863      34  IAM-AS, MA
 15399         494         49      25  WANANCHI-, KE
 37342         484         32       1  MOVITEL, MZ
 36914         417         82       3  KENET-AS, KE
 36935         378        519      37  Vodafone-, EG

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        8633       3417     582  Uninet S.A. de C.V., MX
  9808        7564       8999      55  CMNET-GD Guangdong Mobile Communication
 12479        6728       1721     143  UNI2-AS, ES
  7545        5799        783     674  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        5160       9381    2280  AMAZON-02, US
 11492        4771        314     654  CABLEONE, US
  4538        4758       4192      74  ERX-CERNET-BKB China Education and Rese
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3943       3005     252  ASN-CXA-ALL-CCI-22773-RDC, US
 20940        3655       3347     205  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        7564         7509  CMNET-GD Guangdong Mobile Communication Co.Ltd.
 12479        6728         6585  UNI2-AS, ES
  7545        5799         5125  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4758         4684  ERX-CERNET-BKB China Education and Research Net
 11492        4771         4117  CABLEONE, US
  7155        4027         3995  VIASAT-SP-BACKBONE, US
 22773        3943         3691  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3512         3492  VIETEL-AS-AP Viettel Group, VN
  7713        3529         3473  TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
 20940        3655         3450  AKAMAI-ASN1, NL

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
     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:    209319  IPV6ROUTING, US
                    Transit:     46573  LAYER-HOST, US
23.162.32.0/24       Origin:     32444  SAFELINK-MV, US
                    Transit:      6939  HURRICANE, 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        /8:16       /9:13      /10:41      /11:102     /12:306     
/13:587     /14:1193    /15:1996    /16:13472   /17:8329    /18:13953   
/19:25402   /20:42323   /21:50229   /22:106651  /23:91270   /24:497617  
/25:1365    /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        5691        6728  UNI2-AS, ES
 11492        3809        4771  CABLEONE, US
  8151        3200        8633  Uninet S.A. de C.V., MX
  6327        3167        3361  SHAW, CA
  7155        3115        4027  VIASAT-SP-BACKBONE, US
 22773        2966        3943  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2532        3067  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2245        2577  MEDIACOM-ENTERPRISE-BUSINESS, US
 11830        1933        2509  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)
----------------------------------------------

   1:1881      2:1166      3:142       4:19        5:3547      6:74     
   7:5         8:1526      9:1        11:164      12:1738     13:360    
  14:2293     15:82       16:16       17:323      18:93       20:128    
  21:1        22:188      23:4797     24:2432     25:2        27:2545   
  29:19       31:2311     32:109      34:1        35:41       36:1591   
  37:3772     38:2167     39:624      40:160      41:3798     42:972    
  43:2072     44:258      45:14994    46:3712     47:382      49:1614   
  50:1799     51:100      52:1236     54:222      55:703      56:9      
  57:52       58:1722     59:1201     60:930      61:2313     62:2304   
  63:1969     64:5367     65:2376     66:5043     67:2889     68:1167   
  69:4080     70:1385     71:681      72:3167     74:2595     75:1490   
  76:697      77:2026     78:1710     79:2329     80:1863     81:1507   
  82:1371     83:1144     84:1290     85:2720     86:701      87:1806   
  88:967      89:3020     90:493      91:7351     92:1787     93:2553   
  94:3103     95:3527     96:1297     97:343      98:972      99:969    
 100:93      101:1038    102:1468    103:26167   104:3772    105:426    
 106:793     107:2241    108:720     109:3929    110:2008    111:3188   
 112:1912    113:1506    114:1447    115:1913    116:1892    117:2350   
 118:2370    119:1903    120:1449    121:1069    122:2528    123:2168   
 124:1591    125:2079    128:1309    129:1254    130:864     131:2035   
 132:746     133:360     134:1612    135:298     136:762     137:937    
 138:2372    139:1187    140:751     141:1185    142:1202    143:1307   
 144:1252    145:330     146:1459    147:1342    148:2197    149:1452   
 150:816     151:1076    152:1518    153:413     154:2671    155:1318   
 156:1543    157:1192    158:913     159:2021    160:2329    161:1183   
 162:3330    163:1007    164:1539    165:1383    166:610     167:1776   
 168:3652    169:706     170:4306    171:776     172:2440    173:2974   
 174:990     175:1085    176:3163    177:4358    178:2920    179:1881   
 180:2272    181:2636    182:3197    183:2083    184:2420    185:18366  
 186:4200    187:3097    188:3308    189:2917    190:8851    191:1421   
 192:10708   193:8217    194:6650    195:4772    196:2877    197:2345   
 198:6060    199:6027    200:7456    201:5284    202:10555   203:10094  
 204:4645    205:3360    206:3557    207:3402    208:4006    209:4691   
 210:4257    211:2260    212:3686    213:3493    214:1216    215:60     
 216:6254    217:2574    218:1202    219:709     220:2069    221:961    
 222:880     223:1934   

End of report



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