[cmNOG] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Sep 16 18:02:51 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 17 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:                              909144
    Prefixes after maximum aggregation (per Origin AS):          342561
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      439421
Total ASes present in the Internet Routing Table:                 73660
    Prefixes per ASN:                                             12.34
Origin-only ASes present in the Internet Routing Table:           63260
Origin ASes announcing only one prefix:                           26007
Transit ASes present in the Internet Routing Table:               10400
Transit-only ASes present in the Internet Routing Table:            404
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:              1126
    Number of instances of unregistered ASNs:                      1127
Number of 32-bit ASNs allocated by the RIRs:                      40160
Number of 32-bit ASNs visible in the Routing Table:               33360
Prefixes from 32-bit ASNs in the Routing Table:                  160068
Number of bogon 32-bit ASNs visible in the Routing Table:            10
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            616
Number of addresses announced to Internet:                   3068824192
    Equivalent to 182 /8s, 234 /16s and 138 /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:      308727

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

Prefixes being announced by APNIC Region ASes:                   237144
    Total APNIC prefixes after maximum aggregation:               67475
    APNIC Deaggregation factor:                                    3.51
Prefixes being announced from the APNIC address blocks:          232071
    Unique aggregates announced from the APNIC address blocks:    96334
APNIC Region origin ASes present in the Internet Routing Table:   12962
    APNIC Prefixes per ASN:                                       17.90
APNIC Region origin ASes announcing only one prefix:               3743
APNIC Region transit ASes present in the Internet Routing Table:   1754
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:   8200
Number of APNIC addresses announced to Internet:              773418240
    Equivalent to 46 /8s, 25 /16s and 109 /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:                    265063
    Total ARIN prefixes after maximum aggregation:               121004
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           265804
    Unique aggregates announced from the ARIN address blocks:    128101
ARIN Region origin ASes present in the Internet Routing Table:    19054
    ARIN Prefixes per ASN:                                        13.95
ARIN Region origin ASes announcing only one prefix:                6934
ARIN Region transit ASes present in the Internet Routing Table:    1916
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          33
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4618
Number of ARIN addresses announced to Internet:              1292487936
    Equivalent to 77 /8s, 9 /16s and 205 /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:                    260848
    Total RIPE prefixes after maximum aggregation:               119782
    RIPE Deaggregation factor:                                     2.18
Prefixes being announced from the RIPE address blocks:           258088
    Unique aggregates announced from the RIPE address blocks:    153669
RIPE Region origin ASes present in the Internet Routing Table:    28175
    RIPE Prefixes per ASN:                                         9.16
RIPE Region origin ASes announcing only one prefix:               12049
RIPE Region transit ASes present in the Internet Routing Table:    3985
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:   10801
Number of RIPE addresses announced to Internet:               718336128
    Equivalent to 42 /8s, 208 /16s and 240 /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:                  116632
    Total LACNIC prefixes after maximum aggregation:              27906
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:         116231
    Unique aggregates announced from the LACNIC address blocks:   48971
LACNIC Region origin ASes present in the Internet Routing Table:  10965
    LACNIC Prefixes per ASN:                                      10.60
LACNIC Region origin ASes announcing only one prefix:              2691
LACNIC Region transit ASes present in the Internet Routing Table:  2230
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        55
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8725
Number of LACNIC addresses announced to Internet:             176454912
    Equivalent to 10 /8s, 132 /16s and 125 /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:                  28331
    Total AfriNIC prefixes after maximum aggregation:              5587
    AfriNIC Deaggregation factor:                                  5.07
Prefixes being announced from the AfriNIC address blocks:         36334
    Unique aggregates announced from the AfriNIC address blocks:  11838
AfriNIC Region origin ASes present in the Internet Routing Table:  1687
    AfriNIC Prefixes per ASN:                                     21.54
AfriNIC Region origin ASes announcing only one prefix:              590
AfriNIC Region transit ASes present in the Internet Routing Table:  325
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:            107810560
    Equivalent to 6 /8s, 109 /16s and 15 /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        9063       8884      50  CHINAMOBILE-CN China Mobile Communicati
  7545        5914        786     696  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4720       4192      75  ERX-CERNET-BKB China Education and Rese
  7552        3575       1330      20  VIETEL-AS-AP Viettel Group, VN
  7713        3499       1042      61  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3361       1870      59  VNPT-AS-VN VNPT Corp, VN
  4766        2471      11124     603  KIXS-AS-KR Korea Telecom, KR
  9498        2445        499     238  BBIL-AP BHARTI Airtel Ltd., IN
 24560        2206        852     413  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
 45090        2173       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        7167      10498    2836  AMAZON-02, US
 11492        4542        301     591  CABLEONE, US
  7155        3898        265      32  VIASAT-SP-BACKBONE, US
 22773        3795       3064     355  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3530       1826    2532  AKAMAI-AS, US
  6327        3464       1319      63  SHAW, CA
   749        3033      50728    2291  DNIC-AS-00749, US
 30036        2616        370     231  MEDIACOM-ENTERPRISE-BUSINESS, US
396982        2533       3387     365  GOOGLE-CLOUD-PLATFORM, US
   209        2348       4935     394  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        6913       1730     144  UNI2-AS, ES
  9121        6854       1692      17  TTNET, TR
 20940        4062       3348     217  AKAMAI-ASN1, NL
 39891        4010        234      47  ALJAWWALSTC-AS, SA
  8551        3986        374      38  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2943       2290     910  ROSTELECOM-AS, RU
  6849        2702        355      21  UKRTELNET, UA
  9009        2604        251    1344  M247, GB
 34984        2257        358     633  TELLCOM-AS, TR
 47331        1985        312    1500  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       10950       3394     557  Uninet S.A. de C.V., MX
 10620        3501        515     787  Telmex Colombia S.A., CO
 11830        2322        369      65  Instituto Costarricense de Electricidad
 13999        1995        325     510  Mega Cable, S.A. de C.V., MX
 28573        1360       2328     264  Claro NXT Telecomunicacoes Ltda, BR
  6503        1289        338     520  Axtel, S.A.B. de C.V., MX
  3816        1279        708     148  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1134        369      21  Telefonica del Peru S.A.A., PE
 11664        1058        179     467  Techtel LMDS Comunicaciones Interactiva
 26615         985       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        1556        393      21  LINKdotNET-AS, EG
 24835        1520        521      31  RAYA-AS, EG
 36992        1346       1519     268  ETISALAT-MISR, EG
 36903        1268        550      99  MT-MPLS, MA
 29571         989         68      32  ORANGE-COTE-IVOIRE, CI
 36935         810        520      42  Vodafone-, EG
  6713         612       1863      34  IAM-AS, MA
 15399         522         52      40  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       10950       3394     557  Uninet S.A. de C.V., MX
  9808        9063       8884      50  CHINAMOBILE-CN China Mobile Communicati
 16509        7167      10498    2836  AMAZON-02, US
 12479        6913       1730     144  UNI2-AS, ES
  9121        6854       1692      17  TTNET, TR
  7545        5914        786     696  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4720       4192      75  ERX-CERNET-BKB China Education and Rese
 11492        4542        301     591  CABLEONE, US
 20940        4062       3348     217  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        9063         9013  CHINAMOBILE-CN China Mobile Communications Grou
  9121        6854         6837  TTNET, TR
 12479        6913         6769  UNI2-AS, ES
  7545        5914         5218  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4720         4645  ERX-CERNET-BKB China Education and Research Net
 16509        7167         4331  AMAZON-02, US
 39891        4010         3963  ALJAWWALSTC-AS, SA
 11492        4542         3951  CABLEONE, US
  8551        3986         3948  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
     25674  UNALLOCATED  8.12.76.0/24              3356  LEVEL3, US
     25674  UNALLOCATED  8.14.115.0/24             3356  LEVEL3, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     25674  UNALLOCATED  8.19.146.0/24             3356  LEVEL3, US
     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

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
23.141.0.0/24        Origin:    395350  UNASSIGNED
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
24.152.20.0/23       Origin:    270472  UNASSIGNED
24.152.20.0/23      Transit:     28186  ITS TELECOMUNICACOES LTDA, BR
24.152.22.0/23       Origin:    270472  UNASSIGNED
24.152.22.0/23      Transit:     28186  ITS TELECOMUNICACOES LTDA, BR
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 

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     /12:297     
/13:591     /14:1208    /15:2059    /16:13514   /17:8339    /18:13955   
/19:25148   /20:44502   /21:52362   /22:109317  /23:97324   /24:539556  
/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        6000        6854  TTNET, TR
 12479        5911        6913  UNI2-AS, ES
  8151        4688       10950  Uninet S.A. de C.V., MX
 11492        3462        4542  CABLEONE, US
  8551        3450        3986  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  6327        3274        3464  SHAW, CA
 39891        3193        4010  ALJAWWALSTC-AS, SA
  7155        2987        3898  VIASAT-SP-BACKBONE, US
 22773        2811        3795  ASN-CXA-ALL-CCI-22773-RDC, US
  6849        2558        2702  UKRTELNET, UA

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

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

   1:1911      2:1020      3:163       4:5         5:3884      6:116    
   7:6         8:1600      9:1        11:173      12:1634     13:340    
  14:2367     15:262      16:51       17:361      18:308      20:244    
  21:4        22:188      23:5947     24:2445     25:6        27:2663   
  29:19       31:2413     32:94       34:7        35:88       36:1857   
  37:4474     38:3557     39:740      40:155      41:3916     42:1149   
  43:2243     44:289      45:16127    46:4188     47:308      48:1      
  49:1695     50:1932     51:241      52:1493     54:385      55:833    
  56:8        57:64       58:1786     59:1163     60:983      61:2309   
  62:2547     63:1916     64:5600     65:2306     66:4879     67:2968   
  68:1209     69:4156     70:1312     71:686      72:2999     74:2645   
  75:1455     76:593      77:2266     78:3995     79:3131     80:2058   
  81:1810     82:1506     83:1200     84:1394     85:3721     86:729    
  87:1913     88:2826     89:3422     90:557      91:7594     92:2057   
  93:2543     94:3537     95:4798     96:1309     97:348      98:1031   
  99:721     100:75      101:1067    102:2319    103:29985   104:4555   
 105:472     106:889     107:2542    108:892     109:4319    110:1997   
 111:3324    112:2040    113:1539    114:1500    115:2007    116:1914   
 117:2480    118:2321    119:1827    120:1736    121:1078    122:2532   
 123:2093    124:1554    125:2149    128:1224    129:1029    130:1004   
 131:2029    132:821     133:377     134:1945    135:296     136:860    
 137:876     138:2522    139:1512    140:950     141:1455    142:1333   
 143:1395    144:1197    145:343     146:1851    147:1520    148:2215   
 149:1806    150:868     151:1102    152:1822    153:467     154:3771   
 155:1424    156:1692    157:1278    158:1041    159:2189    160:2532   
 161:1343    162:3500    163:1401    164:1674    165:1658    166:794    
 167:1724    168:3820    169:870     170:4509    171:845     172:3352   
 173:3118    174:1022    175:1150    176:3606    177:4687    178:3579   
 179:2144    180:2330    181:3292    182:3232    183:1931    184:2359   
 185:19710   186:4617    187:3929    188:4008    189:3470    190:8990   
 191:1490    192:10992   193:8702    194:7130    195:5064    196:2970   
 197:2459    198:5981    199:6029    200:7697    201:5797    202:10530  
 203:10028   204:4508    205:3457    206:3841    207:3434    208:4053   
 209:4719    210:4333    211:2397    212:4077    213:3480    214:1117   
 215:54      216:6402    217:2630    218:1286    219:567     220:2010   
 221:922     222:827     223:2004   

End of report


More information about the cmNOG mailing list