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[apops] Weekly Routing Table Report



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@lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz@gmail.com>.

Routing Table Report   04:00 +10GMT Sat 29 May, 2021

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

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

BGP routing table entries examined:                              853329
    Prefixes after maximum aggregation (per Origin AS):          322118
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      405311
Total ASes present in the Internet Routing Table:                 71355
    Prefixes per ASN:                                             11.96
Origin-only ASes present in the Internet Routing Table:           61388
Origin ASes announcing only one prefix:                           25323
Transit ASes present in the Internet Routing Table:                9967
Transit-only ASes present in the Internet Routing Table:            312
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      54
    Max AS path prepend of ASN ( 48366)                              51
Prefixes from unregistered ASNs in the Routing Table:              1133
    Number of instances of unregistered ASNs:                      1140
Number of 32-bit ASNs allocated by the RIRs:                      36145
Number of 32-bit ASNs visible in the Routing Table:               30084
Prefixes from 32-bit ASNs in the Routing Table:                  140026
Number of bogon 32-bit ASNs visible in the Routing Table:            30
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            595
Number of addresses announced to Internet:                   3041760128
    Equivalent to 181 /8s, 77 /16s and 147 /24s
    Percentage of available address space announced:               82.2
    Percentage of allocated address space announced:               82.2
    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:      284524

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

Prefixes being announced by APNIC Region ASes:                   229593
    Total APNIC prefixes after maximum aggregation:               65601
    APNIC Deaggregation factor:                                    3.50
Prefixes being announced from the APNIC address blocks:          225586
    Unique aggregates announced from the APNIC address blocks:    90126
APNIC Region origin ASes present in the Internet Routing Table:   11616
    APNIC Prefixes per ASN:                                       19.42
APNIC Region origin ASes announcing only one prefix:               3343
APNIC Region transit ASes present in the Internet Routing Table:   1632
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         31
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6771
Number of APNIC addresses announced to Internet:              774737152
    Equivalent to 46 /8s, 45 /16s and 141 /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:                    248089
    Total ARIN prefixes after maximum aggregation:               113510
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           248325
    Unique aggregates announced from the ARIN address blocks:    118205
ARIN Region origin ASes present in the Internet Routing Table:    18821
    ARIN Prefixes per ASN:                                        13.19
ARIN Region origin ASes announcing only one prefix:                6811
ARIN Region transit ASes present in the Internet Routing Table:    1946
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:    3893
Number of ARIN addresses announced to Internet:              1271146496
    Equivalent to 75 /8s, 196 /16s and 40 /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:                    237900
    Total RIPE prefixes after maximum aggregation:               110883
    RIPE Deaggregation factor:                                     2.15
Prefixes being announced from the RIPE address blocks:           234017
    Unique aggregates announced from the RIPE address blocks:    138911
RIPE Region origin ASes present in the Internet Routing Table:    27948
    RIPE Prefixes per ASN:                                         8.37
RIPE Region origin ASes announcing only one prefix:               11994
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:   10203
Number of RIPE addresses announced to Internet:               711878272
    Equivalent to 42 /8s, 110 /16s and 102 /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:                  110698
    Total LACNIC prefixes after maximum aggregation:              26404
    LACNIC Deaggregation factor:                                   4.19
Prefixes being announced from the LACNIC address blocks:         111849
    Unique aggregates announced from the LACNIC address blocks:   47070
LACNIC Region origin ASes present in the Internet Routing Table:  10767
    LACNIC Prefixes per ASN:                                      10.39
LACNIC Region origin ASes announcing only one prefix:              2681
LACNIC Region transit ASes present in the Internet Routing Table:  2030
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        35
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8409
Number of LACNIC addresses announced to Internet:             176222976
    Equivalent to 10 /8s, 128 /16s and 243 /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:                  25915
    Total AfriNIC prefixes after maximum aggregation:              4960
    AfriNIC Deaggregation factor:                                  5.22
Prefixes being announced from the AfriNIC address blocks:         32957
    Unique aggregates announced from the AfriNIC address blocks:  10527
AfriNIC Region origin ASes present in the Internet Routing Table:  1465
    AfriNIC Prefixes per ASN:                                     22.50
AfriNIC Region origin ASes announcing only one prefix:              494
AfriNIC Region transit ASes present in the Internet Routing Table:  300
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:  808
Number of AfriNIC addresses announced to Internet:            107337216
    Equivalent to 6 /8s, 101 /16s and 214 /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        7860       8995      48  CMNET-GD Guangdong Mobile Communication
  7545        5776        783     673  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4761       4192      74  ERX-CERNET-BKB China Education and Rese
  7713        3520       1023      56  TELKOMNET-AS-AP PT Telekomunikasi Indon
  7552        3513       1330      20  VIETEL-AS-AP Viettel Group, VN
 45899        2810       1896      54  VNPT-AS-VN VNPT Corp, VN
  4766        2424      11104     562  KIXS-AS-KR Korea Telecom, KR
  9498        2338        482     241  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2127        441     192  TATACOMM-AS TATA Communications formerl
 45090        2116       1197      71  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        5224       9378    2276  AMAZON-02, US
 11492        4717        312     726  CABLEONE, US
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3932       3001     240  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3457       1770    2425  AKAMAI-AS, US
  6327        3360       1317      68  SHAW, CA
 30036        2566        372     160  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2517       5035     480  CENTURYLINK-US-LEGACY-QWEST, US
  5972        2234        451     788  DNIC-ASBLK-05800-06055, US
 20115        2170       2928     508  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        6673       1725     146  UNI2-AS, ES
 20940        3614       3347     202  AKAMAI-ASN1, NL
 39891        3266        187      22  ALJAWWALSTC-AS, SA
  8551        3062        378      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2917       2281     892  ROSTELECOM-AS, RU
  9009        2428        253    1305  M247, GB
 34984        2200        355     590  TELLCOM-AS, TR
 13188        1609        100      31  TRIOLAN, UA
 58224        1594        886     572  TCI, IR
 61317        1541        282     784  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        8617       3483     571  Uninet S.A. de C.V., MX
 10620        3422        526     613  Telmex Colombia S.A., CO
 11830        2498        369      62  Instituto Costarricense de Electricidad
 13999        1722        433     456  Mega Cable, S.A. de C.V., MX
  6503        1450        311     476  Axtel, S.A.B. de C.V., MX
 28573        1381       2282     227  CLARO S.A., BR
  3816        1233        648     150  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1113        374      31  Telefonica del Peru S.A.A., PE
 11664        1003        208     417  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        1592        393      22  LINKdotNET-AS, EG
 24835        1454        498      30  RAYA-AS, EG
 36992        1240       1473     176  ETISALAT-MISR, EG
 36903        1183        537     110  MT-MPLS, MA
 29571         729         68      11  ORANGE-COTE-IVOIRE, CI
  6713         613       1863      34  IAM-AS, MA
 36935         528        522      40  Vodafone-, EG
 37342         484         32       1  MOVITEL, MZ
 15399         482         48      23  WANANCHI-, KE
 36914         410         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        8617       3483     571  Uninet S.A. de C.V., MX
  9808        7860       8995      48  CMNET-GD Guangdong Mobile Communication
 12479        6673       1725     146  UNI2-AS, ES
  7545        5776        783     673  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        5224       9378    2276  AMAZON-02, US
  4538        4761       4192      74  ERX-CERNET-BKB China Education and Rese
 11492        4717        312     726  CABLEONE, US
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3932       3001     240  ASN-CXA-ALL-CCI-22773-RDC, US
 20940        3614       3347     202  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        7860         7812  CMNET-GD Guangdong Mobile Communication Co.Ltd.
 12479        6673         6527  UNI2-AS, ES
  7545        5776         5103  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4761         4687  ERX-CERNET-BKB China Education and Research Net
  7155        4027         3995  VIASAT-SP-BACKBONE, US
 11492        4717         3991  CABLEONE, US
 22773        3932         3692  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3513         3493  VIETEL-AS-AP Viettel Group, VN
  7713        3520         3464  TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
 20940        3614         3412  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:    398481  REDMERCURY, US
                    Transit:    209319  IPV6ROUTING, US
23.162.32.0/24       Origin:     32444  SAFELINK-MV, US
                    Transit:      6939  HURRICANE, US
23.249.162.0/24      Origin:     36352  AS-COLOCROSSING, US
                    Transit:      3257  GTT-BACKBONE GTT, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
                    Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 

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        /8:17       /9:13      /10:41      /11:102     /12:306     
/13:587     /14:1193    /15:1995    /16:13478   /17:8338    /18:13934   
/19:25463   /20:42282   /21:50288   /22:106758  /23:91168   /24:495965  
/25:1401    /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        5626        6673  UNI2-AS, ES
 11492        3758        4717  CABLEONE, US
  8151        3168        8617  Uninet S.A. de C.V., MX
  6327        3167        3360  SHAW, CA
  7155        3115        4027  VIASAT-SP-BACKBONE, US
 22773        2962        3932  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2527        3062  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2233        2566  MEDIACOM-ENTERPRISE-BUSINESS, US
 11830        1921        2498  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)
----------------------------------------------

   1:1890      2:1196      3:134       4:23        5:3587      6:74     
   7:5         8:1527      9:1        11:164      12:1740     13:365    
  14:2308     15:76       16:15       17:322      18:107      20:128    
  21:1        22:188      23:4769     24:2418     25:2        27:2533   
  29:19       31:2287     32:110      34:16       35:45       36:1563   
  37:3778     38:2142     39:625      40:160      41:3861     42:937    
  43:2105     44:259      45:14940    46:3710     47:318      49:1611   
  50:1789     51:100      52:1281     54:236      55:738      56:7      
  57:52       58:1712     59:1198     60:926      61:2314     62:2278   
  63:1970     64:5336     65:2398     66:5049     67:2892     68:1169   
  69:4084     70:1387     71:681      72:3161     74:2603     75:1489   
  76:693      77:2021     78:1692     79:2261     80:1860     81:1510   
  82:1368     83:1134     84:1276     85:2676     86:708      87:1814   
  88:971      89:2983     90:470      91:7361     92:1778     93:2537   
  94:3120     95:3512     96:1290     97:344      98:999      99:968    
 100:94      101:1039    102:1435    103:26082   104:3763    105:435    
 106:782     107:2269    108:715     109:3995    110:1999    111:3182   
 112:1979    113:1540    114:1461    115:1902    116:1887    117:2364   
 118:2352    119:1900    120:1485    121:1071    122:2349    123:2205   
 124:1591    125:2061    128:1252    129:1207    130:860     131:2026   
 132:747     133:357     134:1612    135:296     136:749     137:928    
 138:2324    139:1181    140:733     141:1185    142:1193    143:1296   
 144:1252    145:330     146:1444    147:1329    148:2197    149:1429   
 150:813     151:1080    152:1550    153:412     154:2496    155:1330   
 156:1521    157:1176    158:910     159:2031    160:2324    161:1168   
 162:3302    163:996     164:1529    165:1409    166:604     167:1772   
 168:3620    169:675     170:4256    171:773     172:2399    173:2958   
 174:980     175:1083    176:3158    177:4334    178:2906    179:1892   
 180:2272    181:2634    182:3198    183:2065    184:2414    185:18297  
 186:4145    187:3083    188:3292    189:2892    190:8872    191:1352   
 192:10679   193:8161    194:6632    195:4748    196:2865    197:2325   
 198:6079    199:6021    200:7422    201:5277    202:10547   203:10068  
 204:4656    205:3359    206:3555    207:3392    208:4010    209:4694   
 210:4242    211:2243    212:3689    213:3387    214:1216    215:62     
 216:6259    217:2549    218:1211    219:706     220:2077    221:981    
 222:876     223:1885   

End of report