[lacnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora en apnic.net
Vie Jun 21 15:02:26 -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 22 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:                              953350
    Prefixes after maximum aggregation (per Origin AS):          362882
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      465189
Total ASes present in the Internet Routing Table:                 75929
    Prefixes per ASN:                                             12.56
Origin-only ASes present in the Internet Routing Table:           65040
Origin ASes announcing only one prefix:                           26726
Transit ASes present in the Internet Routing Table:               10889
Transit-only ASes present in the Internet Routing Table:            540
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      60
    Max AS path prepend of ASN ( 53153)                              57
Prefixes from unregistered ASNs in the Routing Table:              1014
    Number of instances of unregistered ASNs:                      1016
Number of 32-bit ASNs allocated by the RIRs:                      44823
Number of 32-bit ASNs visible in the Routing Table:               36609
Prefixes from 32-bit ASNs in the Routing Table:                  187733
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:            630
Number of addresses announced to Internet:                   3024212608
    Equivalent to 180 /8s, 65 /16s and 210 /24s
    Percentage of available address space announced:               81.7
    Percentage of allocated address space announced:               81.7
    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:      312260

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

Prefixes being announced by APNIC Region ASes:                   255235
    Total APNIC prefixes after maximum aggregation:               74274
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          247276
    Unique aggregates announced from the APNIC address blocks:   101275
APNIC Region origin ASes present in the Internet Routing Table:   14216
    APNIC Prefixes per ASN:                                       17.39
APNIC Region origin ASes announcing only one prefix:               4325
APNIC Region transit ASes present in the Internet Routing Table:   1915
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         55
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9616
Number of APNIC addresses announced to Internet:              761663872
    Equivalent to 45 /8s, 102 /16s and 17 /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:                    277575
    Total ARIN prefixes after maximum aggregation:               125346
    ARIN Deaggregation factor:                                     2.21
Prefixes being announced from the ARIN address blocks:           282123
    Unique aggregates announced from the ARIN address blocks:    134701
ARIN Region origin ASes present in the Internet Routing Table:    19135
    ARIN Prefixes per ASN:                                        14.74
ARIN Region origin ASes announcing only one prefix:                6954
ARIN Region transit ASes present in the Internet Routing Table:    1991
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:    4923
Number of ARIN addresses announced to Internet:              1266609408
    Equivalent to 75 /8s, 126 /16s and 237 /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:                    266046
    Total RIPE prefixes after maximum aggregation:               127500
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           260889
    Unique aggregates announced from the RIPE address blocks:    164941
RIPE Region origin ASes present in the Internet Routing Table:    28690
    RIPE Prefixes per ASN:                                         9.09
RIPE Region origin ASes announcing only one prefix:               12150
RIPE Region transit ASes present in the Internet Routing Table:    3998
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          41
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11870
Number of RIPE addresses announced to Internet:               713172992
    Equivalent to 42 /8s, 130 /16s and 40 /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:                  121601
    Total LACNIC prefixes after maximum aggregation:              28857
    LACNIC Deaggregation factor:                                   4.21
Prefixes being announced from the LACNIC address blocks:         119705
    Unique aggregates announced from the LACNIC address blocks:   50270
LACNIC Region origin ASes present in the Internet Routing Table:  11097
    LACNIC Prefixes per ASN:                                      10.79
LACNIC Region origin ASes announcing only one prefix:              2638
LACNIC Region transit ASes present in the Internet Routing Table:  2411
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:  8986
Number of LACNIC addresses announced to Internet:             176669696
    Equivalent to 10 /8s, 135 /16s and 196 /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:                  31879
    Total AfriNIC prefixes after maximum aggregation:              6231
    AfriNIC Deaggregation factor:                                  5.12
Prefixes being announced from the AfriNIC address blocks:         42727
    Unique aggregates announced from the AfriNIC address blocks:  13539
AfriNIC Region origin ASes present in the Internet Routing Table:  1851
    AfriNIC Prefixes per ASN:                                     23.08
AfriNIC Region origin ASes announcing only one prefix:              659
AfriNIC Region transit ASes present in the Internet Routing Table:  365
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       33
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1214
Number of AfriNIC addresses announced to Internet:            105711360
    Equivalent to 6 /8s, 77 /16s and 7 /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        9861       8745      76  CHINAMOBILE-CN China Mobile Communicati
  7545        5643        777     672  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4932       4192      74  ERX-CERNET-BKB China Education and Rese
 18403        4189        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3930       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3779        510     262  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3585       1044      66  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3279       1857     106  VNPT-AS-VN VNPT Corp, VN
 24560        2827        864     392  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2290      11522     578  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       10077      11455    3584  AMAZON-02, US
 11492        4641        308     547  CABLEONE, US
  7155        4166        287      88  VIASAT-SP-BACKBONE, US
   174        3656       8784     869  COGENT-174, US
  6327        3594       1320      79  SHAW, CA
 22773        3450       3037     212  ASN-CXA-ALL-CCI-22773-RDC, US
   749        3250      54901    2502  DNIC-AS-00749, US
 16625        3156       1340    2229  AKAMAI-AS, US
  7018        2868      23666    1802  ATT-INTERNET4, US
396982        2770       3620     417  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        7719       1708     145  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3829       3396     133  AKAMAI-ASN1, NL
  9009        3596        306    1818  M247, RO
 12389        2988       2304     898  ROSTELECOM-AS, RU
 34984        2347        361     577  TELLCOM-AS, TR
  8551        1773        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
212238        1704        123    1236  CDNEXT, GB
 13188        1607        100      26  TRIOLAN, UA
  8452        1477       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       11854       3302     501  UNINET, MX
 10620        3518        492     938  Telmex Colombia S.A., CO
 13999        2553        356     674  Mega Cable, S.A. de C.V., MX
 11830        2003        369      64  Instituto Costarricense de Electricidad
 28573        1342       2311     260  Claro NXT Telecomunicacoes Ltda, BR
  3816        1323        778     198  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1252        278      33  Techtel LMDS Comunicaciones Interactiva
  6503        1128        314     478  Axtel, S.A.B. de C.V., MX
  6147        1092        369      22  Telefonica del Peru S.A.A., PE
 26615        1078       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
 24863        1610        389      20  LINKdotNET-AS, EG
 24835        1570        593      29  RAYA-AS, EG
 36992        1380       1520     283  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1226         78      74  ORANGE-COTE-IVOIRE, CI
 36935         940        521      43  Vodafone-, EG
  6713         555       1861      35  IAM-AS, MA
 36914         540         82       3  KENET-AS, KE
 15399         526         56      56  WANANCHI-, KE
 37342         480         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       11854       3302     501  UNINET, MX
 16509       10077      11455    3584  AMAZON-02, US
  9808        9861       8745      76  CHINAMOBILE-CN China Mobile Communicati
 12479        7719       1708     145  UNI2-AS, ES
  7545        5643        777     672  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        4641        308     547  CABLEONE, US
 18403        4189        347      23  FPT-AS-AP FPT Telecom Company, VN
  7155        4166        287      88  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        9861         9785  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7719         7574  UNI2-AS, ES
 16509       10077         6493  AMAZON-02, US
  7545        5643         4971  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        4189         4166  FPT-AS-AP FPT Telecom Company, VN
 11492        4641         4094  CABLEONE, US
  7155        4166         4078  VIASAT-SP-BACKBONE, US
  7552        3930         3909  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
23.170.224.0/24      Origin:     30168  RESERVED, ZZ
23.170.224.0/24     Transit:    397095  SETSONLLC, 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      /11:93      /12:296     
/13:571     /14:1169    /15:2061    /16:13260   /17:8267    /18:13757   
/19:24702   /20:44319   /21:51838   /22:111546  /23:99899   /24:580780  
/25:725     /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        6807        7719  UNI2-AS, ES
  8151        5939       11854  UNINET, MX
 11492        3548        4641  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3390        3594  SHAW, CA
  7155        3111        4166  VIASAT-SP-BACKBONE, US
 22773        2562        3450  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2154        2494  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2147        3518  Telmex Colombia S.A., CO
 16509        2122       10077  AMAZON-02, US

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

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

   1:2321      2:1534      3:353       4:6         5:4357      6:162    
   7:6         8:1512      9:1        11:172      12:1454     13:357    
  14:2405     15:316      16:217      17:368      18:774      20:385    
  21:4        22:188      23:6856     24:2700     25:2        27:2557   
  29:19       31:2584     32:48       34:63       35:135      36:2326   
  37:4481     38:7885     39:898      40:140      41:4197     42:2017   
  43:2378     44:324      45:17222    46:4504     47:301      49:1976   
  50:1875     51:581      52:1581     54:316      55:907      56:8      
  57:208      58:2158     59:1254     60:1037     61:2601     62:2743   
  63:1885     64:5488     65:2309     66:4616     67:2991     68:1302   
  69:4115     70:1176     71:574      72:2876     74:2598     75:1550   
  76:624      77:2493     78:1860     79:1784     80:2188     81:2019   
  82:1641     83:1360     84:1684     85:3172     86:918      87:2289   
  88:1226     89:4143     90:683      91:8154     92:2321     93:2708   
  94:3731     95:4191     96:1282     97:317      98:1019     99:740    
 100:73      101:1172    102:3515    103:32407   104:4822    105:702    
 106:1002    107:2486    108:1148    109:4046    110:2139    111:3265   
 112:2054    113:1815    114:1821    115:2074    116:1902    117:2653   
 118:2788    119:1986    120:1803    121:1364    122:2705    123:2245   
 124:1641    125:2874    126:32      128:1455    129:897     130:1169   
 131:1853    132:825     133:412     134:1736    135:322     136:1119   
 137:1082    138:2828    139:1512    140:1398    141:1366    142:1669   
 143:1565    144:995     145:372     146:2092    147:1986    148:2539   
 149:2750    150:1033    151:1363    152:2223    153:522     154:6946   
 155:1490    156:2287    157:1864    158:1154    159:2320    160:2724   
 161:1714    162:3545    163:1707    164:1663    165:2155    166:1283   
 167:1808    168:4036    169:792     170:4924    171:1045    172:3863   
 173:3055    174:895     175:1221    176:3473    177:4646    178:3676   
 179:2252    180:2407    181:3764    182:3348    183:1979    184:2264   
 185:20861   186:4956    187:4372    188:4064    189:4200    190:9424   
 191:1481    192:11029   193:9159    194:7523    195:5308    196:3208   
 197:2717    198:6039    199:7956    200:8058    201:6318    202:10482  
 203:10197   204:4593    205:3664    206:4489    207:3607    208:4156   
 209:5064    210:4656    211:2624    212:4362    213:3504    214:1059   
 215:49      216:6763    217:3035    218:1337    219:582     220:2025   
 221:1038    222:853     223:2250   

End of report


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