[cmNOG] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Mar 8 18:02:13 UTC 2024


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
UKNOF, 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 09 Mar, 2024

  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:                              939417
    Prefixes after maximum aggregation (per Origin AS):          358869
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      458422
Total ASes present in the Internet Routing Table:                 75521
    Prefixes per ASN:                                             12.44
Origin-only ASes present in the Internet Routing Table:           64782
Origin ASes announcing only one prefix:                           26599
Transit ASes present in the Internet Routing Table:               10739
Transit-only ASes present in the Internet Routing Table:            500
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:              1069
    Number of instances of unregistered ASNs:                      1071
Number of 32-bit ASNs allocated by the RIRs:                      43794
Number of 32-bit ASNs visible in the Routing Table:               36019
Prefixes from 32-bit ASNs in the Routing Table:                  182502
Number of bogon 32-bit ASNs visible in the Routing Table:            39
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            542
Number of addresses announced to Internet:                   3041749632
    Equivalent to 181 /8s, 77 /16s and 106 /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:               99.6
Total number of prefixes smaller than registry allocations:      310039

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

Prefixes being announced by APNIC Region ASes:                   249003
    Total APNIC prefixes after maximum aggregation:               73042
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          241703
    Unique aggregates announced from the APNIC address blocks:    99939
APNIC Region origin ASes present in the Internet Routing Table:   14033
    APNIC Prefixes per ASN:                                       17.22
APNIC Region origin ASes announcing only one prefix:               4247
APNIC Region transit ASes present in the Internet Routing Table:   1873
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         32
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9408
Number of APNIC addresses announced to Internet:              774768768
    Equivalent to 46 /8s, 46 /16s and 8 /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, 131072-153913
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:                    273922
    Total ARIN prefixes after maximum aggregation:               123903
    ARIN Deaggregation factor:                                     2.21
Prefixes being announced from the ARIN address blocks:           278775
    Unique aggregates announced from the ARIN address blocks:    132662
ARIN Region origin ASes present in the Internet Routing Table:    19120
    ARIN Prefixes per ASN:                                        14.58
ARIN Region origin ASes announcing only one prefix:                6968
ARIN Region transit ASes present in the Internet Routing Table:    1981
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          26
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4859
Number of ARIN addresses announced to Internet:              1270191360
    Equivalent to 75 /8s, 181 /16s and 149 /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:                    263708
    Total RIPE prefixes after maximum aggregation:               126120
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           258268
    Unique aggregates announced from the RIPE address blocks:    162338
RIPE Region origin ASes present in the Internet Routing Table:    28580
    RIPE Prefixes per ASN:                                         9.04
RIPE Region origin ASes announcing only one prefix:               12112
RIPE Region transit ASes present in the Internet Routing Table:    3958
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          40
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11653
Number of RIPE addresses announced to Internet:               712687104
    Equivalent to 42 /8s, 122 /16s and 190 /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
                       196608-216475
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:                  121233
    Total LACNIC prefixes after maximum aggregation:              29012
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:         119680
    Unique aggregates announced from the LACNIC address blocks:   49540
LACNIC Region origin ASes present in the Internet Routing Table:  11062
    LACNIC Prefixes per ASN:                                      10.82
LACNIC Region origin ASes announcing only one prefix:              2621
LACNIC Region transit ASes present in the Internet Routing Table:  2379
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:  8915
Number of LACNIC addresses announced to Internet:             177494784
    Equivalent to 10 /8s, 148 /16s and 91 /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:                  30482
    Total AfriNIC prefixes after maximum aggregation:              6070
    AfriNIC Deaggregation factor:                                  5.02
Prefixes being announced from the AfriNIC address blocks:         40449
    Unique aggregates announced from the AfriNIC address blocks:  13505
AfriNIC Region origin ASes present in the Internet Routing Table:  1824
    AfriNIC Prefixes per ASN:                                     22.18
AfriNIC Region origin ASes announcing only one prefix:              651
AfriNIC Region transit ASes present in the Internet Routing Table:  353
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1184
Number of AfriNIC addresses announced to Internet:            106306048
    Equivalent to 6 /8s, 86 /16s and 26 /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        9818       8740      57  CHINAMOBILE-CN China Mobile Communicati
  7545        5651        777     673  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4935       4192      75  ERX-CERNET-BKB China Education and Rese
  7552        3845       1330      20  VIETEL-AS-AP Viettel Group, VN
  7713        3592       1043      64  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9498        3509        495     250  BBIL-AP BHARTI Airtel Ltd., IN
 45899        3288       1872      98  VNPT-AS-VN VNPT Corp, VN
 24560        2751        863     362  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2311      11259     574  KIXS-AS-KR Korea Telecom, KR
  4755        2189        434     195  TATACOMM-AS TATA Communications formerl

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        9641      11322    3360  AMAZON-02, US
 11492        4576        304     647  CABLEONE, US
  7155        4181        288      96  VIASAT-SP-BACKBONE, US
 22773        3612       3063     302  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3598       1320      75  SHAW, CA
   749        3199      54920    2451  DNIC-AS-00749, US
 16625        3191       1388    2286  AKAMAI-AS, US
   174        3117       6644     673  COGENT-174, US
   367        2920       3649    1408  DNIC-ASBLK-00306-00371, US
396982        2753       3638     403  GOOGLE-CLOUD-PLATFORM, 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        7622       1714     147  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3881       3396     129  AKAMAI-ASN1, NL
  9009        3268        284    1592  M247, RO
 12389        2961       2303     901  ROSTELECOM-AS, RU
  8551        2647        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984        2352        363     591  TELLCOM-AS, TR
 13188        1607        100      26  TRIOLAN, UA
  8452        1520       1852      14  TE-AS TE-AS, EG
 44477        1488         97     709  STARK-INDUSTRIES, GB

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       12517       3354     584  UNINET, MX
 10620        3525        496     891  Telmex Colombia S.A., CO
 13999        2504        338     650  Mega Cable, S.A. de C.V., MX
 11830        2000        369      64  Instituto Costarricense de Electricidad
 28573        1343       2319     241  Claro NXT Telecomunicacoes Ltda, BR
  3816        1312        787     193  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6503        1208        349     490  Axtel, S.A.B. de C.V., MX
 11664        1144        179     421  Techtel LMDS Comunicaciones Interactiva
  6147        1089        369      22  Telefonica del Peru S.A.A., PE
 22884        1069        114     378  TOTAL PLAY TELECOMUNICACIONES SA DE CV,

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
 24835        1549        545      28  RAYA-AS, EG
 24863        1520        389      20  LINKdotNET-AS, EG
 36992        1368       1519     282  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1165         75      59  ORANGE-COTE-IVOIRE, CI
 36935         935        521      42  Vodafone-, EG
  6713         554       1861      34  IAM-AS, MA
 15399         533         56      54  WANANCHI-, KE
 36914         485         82       3  KENET-AS, KE
 24757         426         73       5  EthioNet-AS, ET

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       12517       3354     584  UNINET, MX
  9808        9818       8740      57  CHINAMOBILE-CN China Mobile Communicati
 16509        9641      11322    3360  AMAZON-02, US
 12479        7622       1714     147  UNI2-AS, ES
  7545        5651        777     673  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4935       4192      75  ERX-CERNET-BKB China Education and Rese
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 11492        4576        304     647  CABLEONE, US
  7155        4181        288      96  VIASAT-SP-BACKBONE, US
 20940        3881       3396     129  AKAMAI-ASN1, NL

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

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

   ASN  No of nets  Net Savings  Description
  9808        9818         9761  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7622         7475  UNI2-AS, ES
 16509        9641         6281  AMAZON-02, US
  7545        5651         4978  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4935         4860  ERX-CERNET-BKB China Education and Research Net
 39891        4758         4698  ALJAWWALSTC-AS, SA
  7155        4181         4085  VIASAT-SP-BACKBONE, US
 11492        4576         3929  CABLEONE, US
  7552        3845         3825  VIETEL-AS-AP Viettel Group, VN
 20940        3881         3752  AKAMAI-ASN1, NL

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
     65536  DOCUMENT     5.102.30.0/24            65512  -Private Use AS-, ZZ
     33123  UNALLOCATED  8.10.69.0/24               174  COGENT-174, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     40493  UNALLOCATED  8.17.26.0/24              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  CROWNCASTLE-AS46887, US
    396894  UNALLOCATED  8.28.201.0/24            46887  CROWNCASTLE-AS46887, US
    394936  UNALLOCATED  8.33.224.0/24            22442  HOU-PHONOSCOPE, US
     54338  UNALLOCATED  8.33.241.0/24             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
23.140.216.0/24      Origin:     27176  DATAWAGON, US
23.140.216.0/24     Transit:     20278  NEXEON, US
23.141.0.0/24        Origin:    395350  RESERVED, ZZ
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
23.173.88.0/24       Origin:    394256  CLOUDSINGULARITY, CA
23.173.88.0/24      Transit:      6939  HURRICANE, US
23.176.160.0/24      Origin:    397327  RESERVED, ZZ
23.176.160.0/24     Transit:     19108  SUDDENLINK-COMMUNICATIONS, US
23.189.192.0/24      Origin:     27593  RESERVED, ZZ
23.189.192.0/24     Transit:       174  COGENT-174, US

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       /9:14      /10:37      /11:98      /12:299     
/13:577     /14:1192    /15:2063    /16:13386   /17:8228    /18:13745   
/19:24896   /20:44058   /21:51551   /22:111023  /23:98374   /24:569118  
/25:742     /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        6736        7622  UNI2-AS, ES
  8151        6476       12517  UNINET, MX
 11492        3489        4576  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3395        3598  SHAW, CA
  7155        3125        4181  VIASAT-SP-BACKBONE, US
 22773        2648        3612  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2156        2500  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2131        3525  Telmex Colombia S.A., CO
  8551        2123        2647  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo

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

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

   1:1637      2:1570      3:310       4:6         5:4503      6:161    
   7:6         8:1517      9:1        11:172      12:1468     13:382    
  14:2391     15:314      16:208      17:370      18:737      20:354    
  21:4        22:188      23:6637     24:2702     25:2        27:2573   
  29:19       31:2641     32:49       34:43       35:125      36:2182   
  37:4507     38:7109     39:894      40:140      41:4075     42:983    
  43:2342     44:325      45:16888    46:4366     47:288      49:1932   
  50:1907     51:575      52:1581     54:307      55:881      56:5      
  57:154      58:1876     59:1181     60:1022     61:2588     62:2701   
  63:1904     64:5519     65:2319     66:4715     67:3053     68:1338   
  69:4049     70:1199     71:574      72:2903     74:2591     75:1551   
  76:635      77:2408     78:1844     79:2470     80:2150     81:1934   
  82:1505     83:1257     84:1653     85:3100     86:833      87:2225   
  88:1237     89:4009     90:683      91:7983     92:2179     93:2634   
  94:3647     95:4117     96:1287     97:312      98:1037     99:742    
 100:91      101:1175    102:3104    103:32540   104:4768    105:636    
 106:938     107:2761    108:1133    109:4065    110:2143    111:3217   
 112:2067    113:1557    114:1785    115:1989    116:1959    117:2617   
 118:2361    119:1956    120:1811    121:1330    122:2689    123:2230   
 124:1608    125:2872    126:28      128:1497    129:925     130:1091   
 131:1803    132:815     133:410     134:1710    135:312     136:930    
 137:1051    138:2807    139:1575    140:1372    141:1357    142:1553   
 143:1489    144:1016    145:342     146:2029    147:1703    148:2491   
 149:2572    150:1084    151:1317    152:1988    153:526     154:5886   
 155:1358    156:2247    157:1585    158:1099    159:2238    160:2578   
 161:1633    162:3602    163:1716    164:1618    165:2109    166:1078   
 167:1711    168:3965    169:790     170:4718    171:1010    172:3838   
 173:3029    174:905     175:1218    176:3661    177:4461    178:3569   
 179:2224    180:2364    181:3671    182:3442    183:1804    184:2259   
 185:20610   186:4910    187:4398    188:4023    189:4080    190:9334   
 191:1448    192:10993   193:9033    194:7449    195:5269    196:3131   
 197:2571    198:6013    199:7385    200:8084    201:6364    202:10481  
 203:10158   204:4573    205:3741    206:4502    207:3533    208:4157   
 209:5012    210:4651    211:2578    212:4296    213:3410    214:1106   
 215:43      216:6765    217:2806    218:1363    219:580     220:2058   
 221:1024    222:876     223:2234   

End of report


More information about the cmNOG mailing list