[menog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Sep 9 18:03:00 UTC 2022


This is an automated weekly mailing describing the state of the Global
IPv4 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 https://thyme.apnic.net.

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

IPv4 Routing Table Report   04:00 +10GMT Sat 10 Sep, 2022

  BGP Table (Global) as seen in Japan.

Report Website:     https://thyme.apnic.net
Detailed Analysis:  https://thyme.apnic.net/current/

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

BGP routing table entries examined:                              909260
    Prefixes after maximum aggregation (per Origin AS):          342376
    Deaggregation factor:                                          2.66
    Unique aggregates announced (without unneeded subnets):      439339
Total ASes present in the Internet Routing Table:                 73642
    Prefixes per ASN:                                             12.35
Origin-only ASes present in the Internet Routing Table:           63244
Origin ASes announcing only one prefix:                           26032
Transit ASes present in the Internet Routing Table:               10398
Transit-only ASes present in the Internet Routing Table:            399
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      55
    Max AS path prepend of ASN (265020)                              50
Prefixes from unregistered ASNs in the Routing Table:               974
    Number of instances of unregistered ASNs:                       974
Number of 32-bit ASNs allocated by the RIRs:                      40143
Number of 32-bit ASNs visible in the Routing Table:               33331
Prefixes from 32-bit ASNs in the Routing Table:                  160214
Number of bogon 32-bit ASNs visible in the Routing Table:             7
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            510
Number of addresses announced to Internet:                   3069022080
    Equivalent to 182 /8s, 237 /16s and 143 /24s
    Percentage of available address space announced:               82.9
    Percentage of allocated address space announced:               82.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.6
Total number of prefixes smaller than registry allocations:      308637

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

Prefixes being announced by APNIC Region ASes:                   237518
    Total APNIC prefixes after maximum aggregation:               67545
    APNIC Deaggregation factor:                                    3.52
Prefixes being announced from the APNIC address blocks:          232440
    Unique aggregates announced from the APNIC address blocks:    96417
APNIC Region origin ASes present in the Internet Routing Table:   12948
    APNIC Prefixes per ASN:                                       17.95
APNIC Region origin ASes announcing only one prefix:               3752
APNIC Region transit ASes present in the Internet Routing Table:   1752
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         34
Number of APNIC region 32-bit ASNs visible in the Routing Table:   8184
Number of APNIC addresses announced to Internet:              773537536
    Equivalent to 46 /8s, 27 /16s and 63 /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, 131072-151865
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:                    264936
    Total ARIN prefixes after maximum aggregation:               120942
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           265432
    Unique aggregates announced from the ARIN address blocks:    128088
ARIN Region origin ASes present in the Internet Routing Table:    19052
    ARIN Prefixes per ASN:                                        13.93
ARIN Region origin ASes announcing only one prefix:                6932
ARIN Region transit ASes present in the Internet Routing Table:    1914
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          34
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4606
Number of ARIN addresses announced to Internet:              1293459200
    Equivalent to 77 /8s, 24 /16s and 159 /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:                    260753
    Total RIPE prefixes after maximum aggregation:               119679
    RIPE Deaggregation factor:                                     2.18
Prefixes being announced from the RIPE address blocks:           257993
    Unique aggregates announced from the RIPE address blocks:    153548
RIPE Region origin ASes present in the Internet Routing Table:    28190
    RIPE Prefixes per ASN:                                         9.15
RIPE Region origin ASes announcing only one prefix:               12070
RIPE Region transit ASes present in the Internet Routing Table:    3992
Average RIPE Region AS path length visible:                         4.2
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10804
Number of RIPE addresses announced to Internet:               717378944
    Equivalent to 42 /8s, 194 /16s and 85 /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:                  116719
    Total LACNIC prefixes after maximum aggregation:              27901
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:         116329
    Unique aggregates announced from the LACNIC address blocks:   48967
LACNIC Region origin ASes present in the Internet Routing Table:  10978
    LACNIC Prefixes per ASN:                                      10.60
LACNIC Region origin ASes announcing only one prefix:              2684
LACNIC Region transit ASes present in the Internet Routing Table:  2230
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        55
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8721
Number of LACNIC addresses announced to Internet:             176451584
    Equivalent to 10 /8s, 132 /16s and 112 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-273820 + 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:                  28360
    Total AfriNIC prefixes after maximum aggregation:              5563
    AfriNIC Deaggregation factor:                                  5.10
Prefixes being announced from the AfriNIC address blocks:         36556
    Unique aggregates announced from the AfriNIC address blocks:  11882
AfriNIC Region origin ASes present in the Internet Routing Table:  1688
    AfriNIC Prefixes per ASN:                                     21.66
AfriNIC Region origin ASes announcing only one prefix:              594
AfriNIC Region transit ASes present in the Internet Routing Table:  328
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       37
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1016
Number of AfriNIC addresses announced to Internet:            107912448
    Equivalent to 6 /8s, 110 /16s and 157 /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        9089       8883      47  CHINAMOBILE-CN China Mobile Communicati
  7545        5934        789     699  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4719       4192      75  ERX-CERNET-BKB China Education and Rese
  7552        3586       1330      20  VIETEL-AS-AP Viettel Group, VN
  7713        3500       1042      61  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3365       1870      59  VNPT-AS-VN VNPT Corp, VN
  4766        2474      11124     601  KIXS-AS-KR Korea Telecom, KR
  9498        2427        499     238  BBIL-AP BHARTI Airtel Ltd., IN
 24560        2195        851     411  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
 45090        2180       1438      79  TENCENT-NET-AP Shenzhen Tencent Compute

Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        7069      10468    2825  AMAZON-02, US
 11492        4577        303     535  CABLEONE, US
  7155        3898        265      32  VIASAT-SP-BACKBONE, US
 22773        3808       3067     355  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3511       1815    2525  AKAMAI-AS, US
  6327        3472       1319      63  SHAW, CA
   749        3033      50727    2291  DNIC-AS-00749, US
 30036        2608        369     261  MEDIACOM-ENTERPRISE-BUSINESS, US
396982        2533       3387     365  GOOGLE-CLOUD-PLATFORM, US
   209        2359       4936     404  CENTURYLINK-US-LEGACY-QWEST, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 12479        6931       1730     144  UNI2-AS, ES
  9121        6810       1692      17  TTNET, TR
 20940        4058       3348     218  AKAMAI-ASN1, NL
 39891        4010        234      47  ALJAWWALSTC-AS, SA
  8551        3988        374      38  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2941       2290     910  ROSTELECOM-AS, RU
  6849        2759        355      21  UKRTELNET, UA
  9009        2607        252    1346  M247, GB
 34984        2267        359     635  TELLCOM-AS, TR
 47331        1971        310    1491  TTNET, TR

Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       10925       3393     555  Uninet S.A. de C.V., MX
 10620        3494        514     787  Telmex Colombia S.A., CO
 11830        2329        369      64  Instituto Costarricense de Electricidad
 13999        1985        323     508  Mega Cable, S.A. de C.V., MX
 28573        1362       2328     264  Claro NXT Telecomunicacoes Ltda, BR
  6503        1288        338     520  Axtel, S.A.B. de C.V., MX
  3816        1276        701     149  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1134        369      21  Telefonica del Peru S.A.A., PE
 11664        1057        179     466  Techtel LMDS Comunicaciones Interactiva
 26615         978       2466      43  TIM SA, BR

Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 24863        1598        393      21  LINKdotNET-AS, EG
 24835        1520        521      31  RAYA-AS, EG
 36992        1348       1519     268  ETISALAT-MISR, EG
 36903        1268        550      99  MT-MPLS, MA
 29571         981         68      38  ORANGE-COTE-IVOIRE, CI
 36935         810        520      42  Vodafone-, EG
  6713         611       1863      34  IAM-AS, MA
 15399         521         52      39  WANANCHI-, KE
 37342         481         32       1  MOVITEL, MZ
 23889         402        232      16  MauritiusTelecom, MU

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       10925       3393     555  Uninet S.A. de C.V., MX
  9808        9089       8883      47  CHINAMOBILE-CN China Mobile Communicati
 16509        7069      10468    2825  AMAZON-02, US
 12479        6931       1730     144  UNI2-AS, ES
  9121        6810       1692      17  TTNET, TR
  7545        5934        789     699  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4719       4192      75  ERX-CERNET-BKB China Education and Rese
 11492        4577        303     535  CABLEONE, US
 20940        4058       3348     218  AKAMAI-ASN1, NL
 39891        4010        234      47  ALJAWWALSTC-AS, SA

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

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

   ASN  No of nets  Net Savings  Description
  9808        9089         9042  CHINAMOBILE-CN China Mobile Communications Grou
  9121        6810         6793  TTNET, TR
 12479        6931         6787  UNI2-AS, ES
  7545        5934         5235  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4719         4644  ERX-CERNET-BKB China Education and Research Net
 16509        7069         4244  AMAZON-02, US
 11492        4577         4042  CABLEONE, US
 39891        4010         3963  ALJAWWALSTC-AS, SA
  8551        3988         3950  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7155        3898         3866  VIASAT-SP-BACKBONE, US

Complete listing at https://thyme.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
    398083  UNALLOCATED  5.133.124.0/24          399587  UT, US
     33123  UNALLOCATED  8.10.69.0/24             11168  SCC, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     53775  UNALLOCATED  8.20.88.0/24              7029  WINDSTREAM, US
     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            22442  HOU-PHONOSCOPE, US
     54338  UNALLOCATED  8.33.241.0/24             6461  ZAYO-6461, US
     18798  UNALLOCATED  8.40.106.0/24             6461  ZAYO-6461, US

Complete listing at https://thyme.apnic.net/current/data-badAS

Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

Complete listing at https://thyme.apnic.net/current/data-spar

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
23.128.80.0/24       Origin:    397372  UNASSIGNED
23.128.80.0/24      Transit:       577  BACOM, CA
23.133.251.0/24      Origin:     54681  RTT-BEACON, US
23.133.251.0/24     Transit:     62513  GOCODEIT-INC, CA
23.141.0.0/24        Origin:    395350  UNASSIGNED
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
27.100.7.0/24       Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 
41.57.124.0/22       Origin:     37442  UNASSIGNED
41.57.124.0/22      Transit:     37204  TELONE, ZW

Complete listing at https://thyme.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      /10:39      /11:101     /12:298     
/13:592     /14:1210    /15:2064    /16:13516   /17:8348    /18:13970   
/19:25161   /20:44541   /21:52337   /22:109320  /23:97388   /24:539543  
/25:803     /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
  9121        5957        6810  TTNET, TR
 12479        5918        6931  UNI2-AS, ES
  8151        4658       10925  Uninet S.A. de C.V., MX
 11492        3494        4577  CABLEONE, US
  8551        3452        3988  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  6327        3282        3472  SHAW, CA
 39891        3193        4010  ALJAWWALSTC-AS, SA
  7155        2987        3898  VIASAT-SP-BACKBONE, US
 22773        2823        3808  ASN-CXA-ALL-CCI-22773-RDC, US
  6849        2616        2759  UKRTELNET, UA

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

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

   1:1954      2:1035      3:162       4:5         5:3880      6:116    
   7:6         8:1582      9:1        11:173      12:1631     13:337    
  14:2371     15:258      16:51       17:361      18:258      20:244    
  21:4        22:188      23:5927     24:2427     25:6        27:2658   
  29:19       31:2418     32:93       34:7        35:89       36:1854   
  37:4494     38:3511     39:738      40:155      41:3919     42:1144   
  43:2226     44:291      45:16163    46:4182     47:311      49:1703   
  50:1934     51:240      52:1486     54:384      55:767      56:8      
  57:62       58:1791     59:1163     60:982      61:2296     62:2554   
  63:1912     64:5597     65:2301     66:4888     67:2978     68:1207   
  69:4155     70:1304     71:684      72:3028     74:2643     75:1421   
  76:585      77:2266     78:3981     79:3131     80:2058     81:1799   
  82:1501     83:1207     84:1387     85:3707     86:730      87:1910   
  88:2813     89:3433     90:567      91:7643     92:2051     93:2544   
  94:3538     95:4784     96:1306     97:351      98:1032     99:721    
 100:75      101:1067    102:2327    103:29909   104:4553    105:472    
 106:891     107:2548    108:891     109:4325    110:2002    111:3333   
 112:2047    113:1544    114:1501    115:2012    116:1912    117:2481   
 118:2320    119:1825    120:1737    121:1078    122:2529    123:2099   
 124:1588    125:2149    128:1236    129:1026    130:1005    131:2049   
 132:823     133:377     134:1941    135:296     136:866     137:874    
 138:2519    139:1513    140:951     141:1464    142:1344    143:1414   
 144:1198    145:342     146:1853    147:1514    148:2215    149:1809   
 150:865     151:1085    152:1808    153:466     154:3831    155:1451   
 156:1746    157:1276    158:1040    159:2191    160:2530    161:1336   
 162:3505    163:1410    164:1641    165:1653    166:789     167:1751   
 168:3835    169:869     170:4532    171:847     172:3347    173:3119   
 174:1022    175:1148    176:3610    177:4755    178:3572    179:2166   
 180:2338    181:3260    182:3236    183:1934    184:2367    185:19662  
 186:4607    187:3894    188:4011    189:3447    190:9020    191:1457   
 192:10995   193:8666    194:7125    195:5072    196:2949    197:2463   
 198:5998    199:6032    200:7695    201:5796    202:10515   203:10033  
 204:4505    205:3465    206:3782    207:3438    208:4050    209:4719   
 210:4385    211:2399    212:4073    213:3472    214:1116    215:66     
 216:6377    217:2628    218:1291    219:567     220:2013    221:979    
 222:831     223:1993   

End of report


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