[cmNOG] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri May 31 18:02:15 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 01 Jun, 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:                              954107
    Prefixes after maximum aggregation (per Origin AS):          362175
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      463323
Total ASes present in the Internet Routing Table:                 75895
    Prefixes per ASN:                                             12.57
Origin-only ASes present in the Internet Routing Table:           65044
Origin ASes announcing only one prefix:                           26737
Transit ASes present in the Internet Routing Table:               10851
Transit-only ASes present in the Internet Routing Table:            531
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      60
    Max AS path prepend of ASN ( 53153)                              57
Prefixes from unregistered ASNs in the Routing Table:              1002
    Number of instances of unregistered ASNs:                      1004
Number of 32-bit ASNs allocated by the RIRs:                      44617
Number of 32-bit ASNs visible in the Routing Table:               36520
Prefixes from 32-bit ASNs in the Routing Table:                  187339
Number of bogon 32-bit ASNs visible in the Routing Table:            14
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            603
Number of addresses announced to Internet:                   3028032640
    Equivalent to 180 /8s, 124 /16s and 28 /24s
    Percentage of available address space announced:               81.8
    Percentage of allocated address space announced:               81.8
    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:      314048

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

Prefixes being announced by APNIC Region ASes:                   255243
    Total APNIC prefixes after maximum aggregation:               74101
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          247269
    Unique aggregates announced from the APNIC address blocks:   101155
APNIC Region origin ASes present in the Internet Routing Table:   14184
    APNIC Prefixes per ASN:                                       17.43
APNIC Region origin ASes announcing only one prefix:               4326
APNIC Region transit ASes present in the Internet Routing Table:   1902
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         29
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9575
Number of APNIC addresses announced to Internet:              761652864
    Equivalent to 45 /8s, 101 /16s and 230 /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:                    277054
    Total ARIN prefixes after maximum aggregation:               125032
    ARIN Deaggregation factor:                                     2.22
Prefixes being announced from the ARIN address blocks:           281859
    Unique aggregates announced from the ARIN address blocks:    133926
ARIN Region origin ASes present in the Internet Routing Table:    19159
    ARIN Prefixes per ASN:                                        14.71
ARIN Region origin ASes announcing only one prefix:                6964
ARIN Region transit ASes present in the Internet Routing Table:    1989
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4918
Number of ARIN addresses announced to Internet:              1268000512
    Equivalent to 75 /8s, 148 /16s and 39 /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, 393216-402332
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:                    267369
    Total RIPE prefixes after maximum aggregation:               127457
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           261907
    Unique aggregates announced from the RIPE address blocks:    164539
RIPE Region origin ASes present in the Internet Routing Table:    28688
    RIPE Prefixes per ASN:                                         9.13
RIPE Region origin ASes announcing only one prefix:               12153
RIPE Region transit ASes present in the Internet Routing Table:    3979
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          46
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11838
Number of RIPE addresses announced to Internet:               714110720
    Equivalent to 42 /8s, 144 /16s and 119 /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:                  122002
    Total LACNIC prefixes after maximum aggregation:              28757
    LACNIC Deaggregation factor:                                   4.24
Prefixes being announced from the LACNIC address blocks:         120216
    Unique aggregates announced from the LACNIC address blocks:   50043
LACNIC Region origin ASes present in the Internet Routing Table:  11095
    LACNIC Prefixes per ASN:                                      10.84
LACNIC Region origin ASes announcing only one prefix:              2637
LACNIC Region transit ASes present in the Internet Routing Table:  2412
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        60
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8987
Number of LACNIC addresses announced to Internet:             176664320
    Equivalent to 10 /8s, 135 /16s and 175 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-274844 + 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:                  31437
    Total AfriNIC prefixes after maximum aggregation:              6167
    AfriNIC Deaggregation factor:                                  5.10
Prefixes being announced from the AfriNIC address blocks:         42253
    Unique aggregates announced from the AfriNIC address blocks:  13207
AfriNIC Region origin ASes present in the Internet Routing Table:  1837
    AfriNIC Prefixes per ASN:                                     23.00
AfriNIC Region origin ASes announcing only one prefix:              657
AfriNIC Region transit ASes present in the Internet Routing Table:  358
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1202
Number of AfriNIC addresses announced to Internet:            107282688
    Equivalent to 6 /8s, 101 /16s and 1 /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        9839       8743      69  CHINAMOBILE-CN China Mobile Communicati
  7545        5633        776     668  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4932       4192      74  ERX-CERNET-BKB China Education and Rese
 18403        4393        347      24  FPT-AS-AP FPT Telecom Company, VN
  7552        3931       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3758        509     261  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3620       1043      63  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3276       1857     103  VNPT-AS-VN VNPT Corp, VN
 24560        2795        863     374  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2294      11523     575  KIXS-AS-KR Korea Telecom, KR

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        9968      11390    3527  AMAZON-02, US
 11492        4617        306     592  CABLEONE, US
  7155        4167        287      89  VIASAT-SP-BACKBONE, US
  6327        3594       1320      79  SHAW, CA
 22773        3475       3039     228  ASN-CXA-ALL-CCI-22773-RDC, US
   174        3427       8783     880  COGENT-174, US
   749        3222      54904    2474  DNIC-AS-00749, US
 16625        3103       1338    2226  AKAMAI-AS, US
  7018        2850      23664    1803  ATT-INTERNET4, US
   367        2773       3370    1297  DNIC-ASBLK-00306-00371, 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        7760       1708     145  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3832       3396     133  AKAMAI-ASN1, NL
  9009        3513        300    1755  M247, RO
 12389        2990       2304     901  ROSTELECOM-AS, RU
  8551        2648        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984        2343        362     581  TELLCOM-AS, TR
212238        1694        124    1231  CDNEXT, GB
 13188        1607        100      26  TRIOLAN, UA
  8452        1579       1852      14  TE-AS TE-AS, EG

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       12149       3319     500  UNINET, MX
 10620        3512        492     940  Telmex Colombia S.A., CO
 13999        2547        355     666  Mega Cable, S.A. de C.V., MX
 11830        1999        369      64  Instituto Costarricense de Electricidad
 28573        1346       2311     255  Claro NXT Telecomunicacoes Ltda, BR
  3816        1322        784     196  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1240        278      33  Techtel LMDS Comunicaciones Interactiva
  6503        1128        315     480  Axtel, S.A.B. de C.V., MX
  6147        1088        369      22  Telefonica del Peru S.A.A., PE
 26615        1076       2503      53  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
 24835        1569        577      29  RAYA-AS, EG
 24863        1494        389      20  LINKdotNET-AS, EG
 36992        1376       1520     281  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1219         77      58  ORANGE-COTE-IVOIRE, CI
 36935         935        521      42  Vodafone-, EG
  6713         556       1861      35  IAM-AS, MA
 15399         534         56      56  WANANCHI-, KE
 36914         479         82       3  KENET-AS, KE
 37342         467         32       1  MOVITEL, MZ

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       12149       3319     500  UNINET, MX
 16509        9968      11390    3527  AMAZON-02, US
  9808        9839       8743      69  CHINAMOBILE-CN China Mobile Communicati
 12479        7760       1708     145  UNI2-AS, ES
  7545        5633        776     668  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4932       4192      74  ERX-CERNET-BKB China Education and Rese
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 11492        4617        306     592  CABLEONE, US
 18403        4393        347      24  FPT-AS-AP FPT Telecom Company, VN
  7155        4167        287      89  VIASAT-SP-BACKBONE, US

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

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

   ASN  No of nets  Net Savings  Description
  9808        9839         9770  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7760         7615  UNI2-AS, ES
 16509        9968         6441  AMAZON-02, US
  7545        5633         4965  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4932         4858  ERX-CERNET-BKB China Education and Research Net
 39891        4758         4698  ALJAWWALSTC-AS, SA
 18403        4393         4369  FPT-AS-AP FPT Telecom Company, VN
  7155        4167         4078  VIASAT-SP-BACKBONE, US
 11492        4617         4025  CABLEONE, US
  7552        3931         3910  VIETEL-AS-AP Viettel Group, VN

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
     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
     46639  UNALLOCATED  8.17.66.0/24               701  UUNET, 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             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
14.192.20.0/22       Origin:     26658  HENGTONG-IDC-LLC, US
14.192.20.0/22      Transit:      6939  HURRICANE, US
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
23.189.192.0/24      Origin:     27593  RESERVED, ZZ
23.189.192.0/24     Transit:       174  COGENT-174, US
27.0.192.0/22        Origin:    138415  YANCYLIMITED-AS-HK Yancy Limited, HK
27.0.192.0/22       Transit:     51847  NEAROUTE, HK

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      /11:93      /12:298     
/13:577     /14:1169    /15:2057    /16:13273   /17:8266    /18:13765   
/19:24726   /20:44291   /21:51767   /22:111633  /23:99578   /24:581817  
/25:730     /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        6854        7760  UNI2-AS, ES
  8151        6210       12149  UNINET, MX
 11492        3529        4617  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3390        3594  SHAW, CA
  7155        3111        4167  VIASAT-SP-BACKBONE, US
 22773        2576        3475  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2178        2520  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2141        3512  Telmex Colombia S.A., CO
  8551        2124        2648  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)
----------------------------------------------

   1:2330      2:1525      3:343       4:6         5:4557      6:162    
   7:6         8:1517      9:1        11:172      12:1461     13:362    
  14:2400     15:319      16:217      17:369      18:770      20:385    
  21:4        22:188      23:6861     24:2717     25:2        27:2545   
  29:19       31:2587     32:48       34:63       35:135      36:2299   
  37:4491     38:7590     39:896      40:122      41:4100     42:2122   
  43:2368     44:320      45:17104    46:4515     47:306      49:1969   
  50:1912     51:577      52:1585     54:314      55:986      56:7      
  57:180      58:2155     59:1257     60:1032     61:2601     62:2720   
  63:1884     64:5506     65:2348     66:4669     67:2995     68:1313   
  69:4080     70:1179     71:581      72:2877     74:2594     75:1551   
  76:624      77:2473     78:1860     79:2526     80:2187     81:2018   
  82:1642     83:1353     84:1674     85:3179     86:912      87:2293   
  88:1249     89:4118     90:687      91:8131     92:2316     93:2710   
  94:3748     95:4199     96:1278     97:315      98:1032     99:739    
 100:73      101:1177    102:3456    103:32492   104:4785    105:679    
 106:959     107:2751    108:1152    109:4199    110:2139    111:3263   
 112:2067    113:1800    114:1814    115:2080    116:1902    117:2653   
 118:2824    119:1986    120:1803    121:1348    122:2699    123:2241   
 124:1634    125:2881    126:32      128:1460    129:933     130:1155   
 131:1836    132:810     133:412     134:1741    135:322     136:1118   
 137:1072    138:2831    139:1534    140:1364    141:1341    142:1646   
 143:1552    144:1012    145:364     146:2065    147:1961    148:2515   
 149:2762    150:1038    151:1340    152:2204    153:525     154:6759   
 155:1458    156:2298    157:1821    158:1149    159:2327    160:2671   
 161:1698    162:3560    163:1713    164:1650    165:2154    166:1255   
 167:1795    168:3989    169:810     170:4914    171:1041    172:3866   
 173:3051    174:895     175:1222    176:3688    177:4861    178:3701   
 179:2284    180:2362    181:3749    182:3386    183:2000    184:2259   
 185:20826   186:5025    187:4588    188:4072    189:4189    190:9445   
 191:1697    192:11051   193:9129    194:7516    195:5320    196:3172   
 197:2601    198:6070    199:7891    200:8033    201:6240    202:10489  
 203:10191   204:4599    205:3668    206:4499    207:3602    208:4162   
 209:5065    210:4651    211:2621    212:4283    213:3482    214:1071   
 215:49      216:6790    217:3005    218:1340    219:580     220:2042   
 221:1034    222:858     223:2244   

End of report


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