[lacnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora en apnic.net
Vie Feb 9 15:02:17 -03 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 en lists.apnic.net.

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

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

IPv4 Routing Table Report   04:00 +10GMT Sat 10 Feb, 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:                              941813
    Prefixes after maximum aggregation (per Origin AS):          358035
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      457231
Total ASes present in the Internet Routing Table:                 75375
    Prefixes per ASN:                                             12.50
Origin-only ASes present in the Internet Routing Table:           64616
Origin ASes announcing only one prefix:                           26555
Transit ASes present in the Internet Routing Table:               10759
Transit-only ASes present in the Internet Routing Table:            481
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                     121
    Max AS path prepend of ASN (150315)                             116
Prefixes from unregistered ASNs in the Routing Table:              1100
    Number of instances of unregistered ASNs:                      1102
Number of 32-bit ASNs allocated by the RIRs:                      43593
Number of 32-bit ASNs visible in the Routing Table:               35849
Prefixes from 32-bit ASNs in the Routing Table:                  181573
Number of bogon 32-bit ASNs visible in the Routing Table:            34
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            508
Number of addresses announced to Internet:                   3042330496
    Equivalent to 181 /8s, 86 /16s and 71 /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:      310900

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

Prefixes being announced by APNIC Region ASes:                   251974
    Total APNIC prefixes after maximum aggregation:               72904
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          244649
    Unique aggregates announced from the APNIC address blocks:   100083
APNIC Region origin ASes present in the Internet Routing Table:   13974
    APNIC Prefixes per ASN:                                       17.51
APNIC Region origin ASes announcing only one prefix:               4224
APNIC Region transit ASes present in the Internet Routing Table:   1880
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                        121
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9337
Number of APNIC addresses announced to Internet:              774527616
    Equivalent to 46 /8s, 42 /16s and 90 /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:                    274965
    Total ARIN prefixes after maximum aggregation:               123818
    ARIN Deaggregation factor:                                     2.22
Prefixes being announced from the ARIN address blocks:           279952
    Unique aggregates announced from the ARIN address blocks:    132370
ARIN Region origin ASes present in the Internet Routing Table:    19087
    ARIN Prefixes per ASN:                                        14.67
ARIN Region origin ASes announcing only one prefix:                6950
ARIN Region transit ASes present in the Internet Routing Table:    1967
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4846
Number of ARIN addresses announced to Internet:              1269972480
    Equivalent to 75 /8s, 178 /16s and 62 /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:                    262681
    Total RIPE prefixes after maximum aggregation:               125609
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           257308
    Unique aggregates announced from the RIPE address blocks:    161464
RIPE Region origin ASes present in the Internet Routing Table:    28550
    RIPE Prefixes per ASN:                                         9.01
RIPE Region origin ASes announcing only one prefix:               12111
RIPE Region transit ASes present in the Internet Routing Table:    3955
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          37
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11582
Number of RIPE addresses announced to Internet:               713464064
    Equivalent to 42 /8s, 134 /16s and 153 /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:                  120689
    Total LACNIC prefixes after maximum aggregation:              28889
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:         119307
    Unique aggregates announced from the LACNIC address blocks:   49607
LACNIC Region origin ASes present in the Internet Routing Table:  11059
    LACNIC Prefixes per ASN:                                      10.79
LACNIC Region origin ASes announcing only one prefix:              2631
LACNIC Region transit ASes present in the Internet Routing Table:  2397
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:  8913
Number of LACNIC addresses announced to Internet:             177959680
    Equivalent to 10 /8s, 155 /16s and 115 /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:                  30404
    Total AfriNIC prefixes after maximum aggregation:              6097
    AfriNIC Deaggregation factor:                                  4.99
Prefixes being announced from the AfriNIC address blocks:         40089
    Unique aggregates announced from the AfriNIC address blocks:  13289
AfriNIC Region origin ASes present in the Internet Routing Table:  1822
    AfriNIC Prefixes per ASN:                                     22.00
AfriNIC Region origin ASes announcing only one prefix:              639
AfriNIC Region transit ASes present in the Internet Routing Table:  352
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       27
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1171
Number of AfriNIC addresses announced to Internet:            106107648
    Equivalent to 6 /8s, 83 /16s and 19 /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        9825       8739      55  CHINAMOBILE-CN China Mobile Communicati
  7545        5679        784     685  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4920       4192      75  ERX-CERNET-BKB China Education and Rese
 18403        4595        347      25  FPT-AS-AP FPT Telecom Company, VN
  7552        3877       1331      21  VIETEL-AS-AP Viettel Group, VN
  7713        3592       1043      64  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9498        3484        499     255  BBIL-AP BHARTI Airtel Ltd., IN
 45899        3286       1872      99  VNPT-AS-VN VNPT Corp, VN
 24560        2695        859     383  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2302      11258     574  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        9622      11224    3395  AMAZON-02, US
 11492        4579        304     655  CABLEONE, US
  7155        4177        288      96  VIASAT-SP-BACKBONE, US
 22773        3621       3062     299  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3593       1320      74  SHAW, CA
 16625        3240       1420    2313  AKAMAI-AS, US
   749        3184      54927    2436  DNIC-AS-00749, US
   174        3034       6640     664  COGENT-174, US
   367        2938       3732    1434  DNIC-ASBLK-00306-00371, US
396982        2753       3639     394  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        7596       1698     149  UNI2-AS, ES
 39891        4658        280      55  ALJAWWALSTC-AS, SA
 20940        3858       3396     134  AKAMAI-ASN1, NL
  9009        3284        285    1595  M247, RO
 12389        2994       2302     907  ROSTELECOM-AS, RU
  8551        2704        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984        2346        363     592  TELLCOM-AS, TR
 13188        1607        100      26  TRIOLAN, UA
  8452        1497       1852      14  TE-AS TE-AS, EG
 58224        1492        848     597  TCI, IR

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       12326       3390     616  UNINET, MX
 10620        3520        496     895  Telmex Colombia S.A., CO
 13999        2502        337     640  Mega Cable, S.A. de C.V., MX
 11830        2005        369      64  Instituto Costarricense de Electricidad
 28573        1326       2319     238  Claro NXT Telecomunicacoes Ltda, BR
  3816        1306        787     192  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6503        1237        340     498  Axtel, S.A.B. de C.V., MX
 11664        1133        178     427  Techtel LMDS Comunicaciones Interactiva
 22884        1074        116     379  TOTAL PLAY TELECOMUNICACIONES SA DE CV,
  6147        1067        369      22  Telefonica del Peru S.A.A., PE

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        1548        545      28  RAYA-AS, EG
 24863        1518        389      16  LINKdotNET-AS, EG
 36992        1361       1519     281  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1124         72      58  ORANGE-COTE-IVOIRE, CI
 36935         935        521      42  Vodafone-, EG
  6713         551       1861      34  IAM-AS, MA
 36914         530         82       3  KENET-AS, KE
 15399         525         55      53  WANANCHI-, KE
 24757         487         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       12326       3390     616  UNINET, MX
  9808        9825       8739      55  CHINAMOBILE-CN China Mobile Communicati
 16509        9622      11224    3395  AMAZON-02, US
 12479        7596       1698     149  UNI2-AS, ES
  7545        5679        784     685  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4920       4192      75  ERX-CERNET-BKB China Education and Rese
 39891        4658        280      55  ALJAWWALSTC-AS, SA
 18403        4595        347      25  FPT-AS-AP FPT Telecom Company, VN
 11492        4579        304     655  CABLEONE, US
  7155        4177        288      96  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        9825         9770  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7596         7447  UNI2-AS, ES
 16509        9622         6227  AMAZON-02, US
  7545        5679         4994  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4920         4845  ERX-CERNET-BKB China Education and Research Net
 39891        4658         4603  ALJAWWALSTC-AS, SA
 18403        4595         4570  FPT-AS-AP FPT Telecom Company, VN
  7155        4177         4081  VIASAT-SP-BACKBONE, US
 11492        4579         3924  CABLEONE, US
  7552        3877         3856  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
     33492  UNALLOCATED  8.6.184.0/23             33650  COMCAST-33650, US
     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  LIGHTOWER, US
    396894  UNALLOCATED  8.28.201.0/24            46887  LIGHTOWER, 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
23.164.72.0/24       Origin:     49195  SSAC, CN
23.164.72.0/24      Transit:     15353  XENTAIN, CA
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      /12:300     
/13:578     /14:1192    /15:2064    /16:13370   /17:8204    /18:13705   
/19:25020   /20:44430   /21:51908   /22:110832  /23:99440   /24:569871  
/25:734     /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        6713        7596  UNI2-AS, ES
  8151        6335       12326  UNINET, MX
 11492        3493        4579  CABLEONE, US
  6327        3391        3593  SHAW, CA
 39891        3340        4658  ALJAWWALSTC-AS, SA
  7155        3121        4177  VIASAT-SP-BACKBONE, US
 22773        2657        3621  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        2180        2704  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2137        2480  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2126        3520  Telmex Colombia S.A., CO

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

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

   1:2341      2:1459      3:298       4:6         5:4469      6:165    
   7:6         8:1533      9:1        11:172      12:1482     13:377    
  14:2379     15:311      16:202      17:362      18:729      20:353    
  21:4        22:188      23:6595     24:2709     25:2        27:2551   
  29:19       31:2561     32:57       34:38       35:124      36:2153   
  37:4473     38:6893     39:900      40:140      41:4057     42:2222   
  43:2323     44:330      45:16898    46:4361     47:285      49:1913   
  50:1906     51:572      52:1591     54:343      55:884      56:5      
  57:146      58:2030     59:1205     60:1018     61:2600     62:2697   
  63:1929     64:5518     65:2325     66:4933     67:3059     68:1338   
  69:4091     70:1199     71:578      72:2919     74:2658     75:1555   
  76:631      77:2357     78:1846     79:2516     80:2124     81:1906   
  82:1520     83:1249     84:1644     85:3095     86:782      87:2193   
  88:1222     89:4002     90:671      91:7924     92:2189     93:2636   
  94:3645     95:4061     96:1287     97:313      98:1033     99:744    
 100:95      101:1167    102:3075    103:32543   104:4781    105:598    
 106:927     107:2769    108:1132    109:4016    110:2152    111:3209   
 112:2070    113:1807    114:1762    115:1963    116:1977    117:2639   
 118:2752    119:1941    120:1812    121:1319    122:2633    123:2230   
 124:1604    125:2849    126:28      128:1451    129:926     130:1088   
 131:1824    132:824     133:411     134:1706    135:311     136:920    
 137:1029    138:2796    139:1541    140:1366    141:1341    142:1560   
 143:1512    144:1015    145:344     146:2005    147:1701    148:2513   
 149:2518    150:1023    151:1323    152:1981    153:528     154:5668   
 155:1374    156:2105    157:1503    158:1094    159:2207    160:2604   
 161:1630    162:3608    163:1695    164:1629    165:2110    166:1075   
 167:1711    168:3810    169:798     170:4711    171:1016    172:3808   
 173:3016    174:903     175:1214    176:3637    177:4545    178:3535   
 179:2204    180:2362    181:3679    182:3469    183:2017    184:2277   
 185:20549   186:4826    187:4394    188:4005    189:4022    190:9316   
 191:1451    192:11009   193:8996    194:7396    195:5265    196:3132   
 197:2614    198:6018    199:7150    200:8050    201:6354    202:10485  
 203:10160   204:4567    205:3742    206:4426    207:3524    208:4132   
 209:4964    210:4637    211:2582    212:4260    213:3409    214:1111   
 215:44      216:6802    217:2788    218:1364    219:597     220:2053   
 221:1020    222:873     223:2233   

End of report


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