[menog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Jul 12 18:02:23 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 13 Jul, 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:                              954328
    Prefixes after maximum aggregation (per Origin AS):          363665
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      465597
Total ASes present in the Internet Routing Table:                 75938
    Prefixes per ASN:                                             12.57
Origin-only ASes present in the Internet Routing Table:           65026
Origin ASes announcing only one prefix:                           26674
Transit ASes present in the Internet Routing Table:               10912
Transit-only ASes present in the Internet Routing Table:            536
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      84
    Max AS path prepend of ASN (152107)                              80
Prefixes from unregistered ASNs in the Routing Table:              1020
    Number of instances of unregistered ASNs:                      1025
Number of 32-bit ASNs allocated by the RIRs:                      44960
Number of 32-bit ASNs visible in the Routing Table:               36707
Prefixes from 32-bit ASNs in the Routing Table:                  189010
Number of bogon 32-bit ASNs visible in the Routing Table:            24
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            571
Number of addresses announced to Internet:                   3026911360
    Equivalent to 180 /8s, 107 /16s and 0 /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:      312151

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

Prefixes being announced by APNIC Region ASes:                   255815
    Total APNIC prefixes after maximum aggregation:               74526
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          247602
    Unique aggregates announced from the APNIC address blocks:   101771
APNIC Region origin ASes present in the Internet Routing Table:   14252
    APNIC Prefixes per ASN:                                       17.37
APNIC Region origin ASes announcing only one prefix:               4324
APNIC Region transit ASes present in the Internet Routing Table:   1914
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         84
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9653
Number of APNIC addresses announced to Internet:              761717632
    Equivalent to 45 /8s, 102 /16s and 227 /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:                    277964
    Total ARIN prefixes after maximum aggregation:               125400
    ARIN Deaggregation factor:                                     2.22
Prefixes being announced from the ARIN address blocks:           282504
    Unique aggregates announced from the ARIN address blocks:    134602
ARIN Region origin ASes present in the Internet Routing Table:    19119
    ARIN Prefixes per ASN:                                        14.78
ARIN Region origin ASes announcing only one prefix:                6935
ARIN Region transit ASes present in the Internet Routing Table:    1999
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:    4932
Number of ARIN addresses announced to Internet:              1267395584
    Equivalent to 75 /8s, 138 /16s and 236 /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:                    266254
    Total RIPE prefixes after maximum aggregation:               127585
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           261482
    Unique aggregates announced from the RIPE address blocks:    165270
RIPE Region origin ASes present in the Internet Routing Table:    28663
    RIPE Prefixes per ASN:                                         9.12
RIPE Region origin ASes announcing only one prefix:               12107
RIPE Region transit ASes present in the Internet Routing Table:    3986
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          39
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11899
Number of RIPE addresses announced to Internet:               715058176
    Equivalent to 42 /8s, 158 /16s and 236 /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:                  121526
    Total LACNIC prefixes after maximum aggregation:              29242
    LACNIC Deaggregation factor:                                   4.16
Prefixes being announced from the LACNIC address blocks:         119524
    Unique aggregates announced from the LACNIC address blocks:   50055
LACNIC Region origin ASes present in the Internet Routing Table:  11114
    LACNIC Prefixes per ASN:                                      10.75
LACNIC Region origin ASes announcing only one prefix:              2644
LACNIC Region transit ASes present in the Internet Routing Table:  2447
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:  9008
Number of LACNIC addresses announced to Internet:             177189376
    Equivalent to 10 /8s, 143 /16s and 178 /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:                  31749
    Total AfriNIC prefixes after maximum aggregation:              6245
    AfriNIC Deaggregation factor:                                  5.08
Prefixes being announced from the AfriNIC address blocks:         42645
    Unique aggregates announced from the AfriNIC address blocks:  13431
AfriNIC Region origin ASes present in the Internet Routing Table:  1853
    AfriNIC Prefixes per ASN:                                     23.01
AfriNIC Region origin ASes announcing only one prefix:              664
AfriNIC Region transit ASes present in the Internet Routing Table:  358
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1215
Number of AfriNIC addresses announced to Internet:            105179392
    Equivalent to 6 /8s, 68 /16s and 233 /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        9851       8747      79  CHINAMOBILE-CN China Mobile Communication
  7545        5661        776     671  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4934       4192      74  ERX-CERNET-BKB China Education and Resear
 18403        4203        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3961       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3786        511     264  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3623       1044      66  TELKOMNET-AS-AP PT Telekomunikasi Indones
 45899        3237       1841     104  VNPT-AS-VN VNPT Corp, VN
 24560        2824        862     401  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
  4766        2285      11523     579  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       10073      11530    3664  AMAZON-02, US
 11492        4627        307     563  CABLEONE, US
  7155        4166        287      88  VIASAT-SP-BACKBONE, US
   174        3721       8791     885  COGENT-174, US
  6327        3594       1320      78  SHAW, CA
 22773        3426       3035     189  ASN-CXA-ALL-CCI-22773-RDC, US
   749        3254      54899    2506  DNIC-AS-00749, US
 16625        3111       1307    2189  AKAMAI-AS, US
  7018        2932      23686    1834  ATT-INTERNET4, US
396982        2769       3611     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        7710       1708     145  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3830       3396     133  AKAMAI-ASN1, NL
  9009        3570        305    1814  M247, RO
 12389        2943       2302     887  ROSTELECOM-AS, RU
 34984        2346        361     578  TELLCOM-AS, TR
  8551        1774        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Internet 
212238        1717        124    1249  CDNEXT, GB
 13188        1607        100      26  TRIOLAN, UA
  8452        1574       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       11871       3311     503  UNINET, MX
 10620        3521        492     937  Telmex Colombia S.A., CO
 13999        2542        354     681  Mega Cable, S.A. de C.V., MX
 11830        2001        369      64  Instituto Costarricense de Electricidad y
 28573        1343       2311     258  Claro NXT Telecomunicacoes Ltda, BR
  3816        1322        777     195  COLOMBIA TELECOMUNICACIONES S.A. ESP, CO
  6503        1124        314     478  Axtel, S.A.B. de C.V., MX
 26615        1082       2503      53  TIM SA, BR
  6147        1080        369      22  Telefonica del Peru S.A.A., PE
 22884        1062         97     370  TOTAL PLAY TELECOMUNICACIONES SA DE CV, M

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        1605        389      16  LINKdotNET-AS, EG
 24835        1557        593      29  RAYA-AS, EG
 36992        1381       1520     283  ETISALAT-MISR, EG
 29571        1260         80      76  ORANGE-COTE-IVOIRE, CI
 36903        1249        554      96  MT-MPLS, MA
 36935         940        521      43  Vodafone-, EG
  6713         555       1861      35  IAM-AS, MA
 15399         508         56      57  WANANCHI-, KE
 36914         502         82       3  KENET-AS, KE
 37342         433         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       11871       3311     503  UNINET, MX
 16509       10073      11530    3664  AMAZON-02, US
  9808        9851       8747      79  CHINAMOBILE-CN China Mobile Communication
 12479        7710       1708     145  UNI2-AS, ES
  7545        5661        776     671  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4934       4192      74  ERX-CERNET-BKB China Education and Resear
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 11492        4627        307     563  CABLEONE, US
 18403        4203        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        9851         9772  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7710         7565  UNI2-AS, ES
 16509       10073         6409  AMAZON-02, US
  7545        5661         4990  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4934         4860  ERX-CERNET-BKB China Education and Research Net
 39891        4758         4698  ALJAWWALSTC-AS, SA
 18403        4203         4180  FPT-AS-AP FPT Telecom Company, VN
  7155        4166         4078  VIASAT-SP-BACKBONE, US
 11492        4627         4064  CABLEONE, US
  7552        3961         3940  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-D
     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
    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
     46639  UNALLOCATED  8.38.73.0/24              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
23.152.48.0/24       Origin:     46167  RESERVED, ZZ
23.152.48.0/24      Transit:      7018  ATT-INTERNET4, US
23.170.224.0/24      Origin:     30168  RESERVED, ZZ
23.170.224.0/24     Transit:    397095  SETSONLLC, 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      /11:92      /12:294     
/13:572     /14:1166    /15:2061    /16:13248   /17:8274    /18:13761   
/19:24695   /20:44284   /21:51910   /22:111524  /23:99933   /24:581753  
/25:694     /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        6796        7710  UNI2-AS, ES
  8151        5939       11871  UNINET, MX
 11492        3537        4627  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3391        3594  SHAW, CA
  7155        3111        4166  VIASAT-SP-BACKBONE, US
 22773        2561        3426  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2160        2500  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2150        3521  Telmex Colombia S.A., CO
 16509        2128       10073  AMAZON-02, US

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

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

   1:2342      2:1543      3:370       4:6         5:4372      6:149    
   7:6         8:1516      9:1        11:172      12:1435     13:353    
  14:2373     15:321      16:219      17:371      18:773      20:388    
  21:4        22:188      23:6912     24:2700     25:2        27:2562   
  29:19       31:2602     32:48       34:63       35:135      36:2339   
  37:4503     38:8071     39:907      40:146      41:4083     42:1997   
  43:2392     44:324      45:17367    46:4536     47:298      49:1971   
  50:1894     51:581      52:1570     54:314      55:919      56:8      
  57:217      58:2223     59:1257     60:1048     61:2653     62:2760   
  63:1881     64:5479     65:2304     66:4628     67:2988     68:1304   
  69:4062     70:1162     71:557      72:2861     74:2604     75:1550   
  76:625      77:2489     78:1872     79:1783     80:2201     81:2027   
  82:1643     83:1368     84:1690     85:3176     86:924      87:2303   
  88:1242     89:4178     90:690      91:8143     92:2348     93:2712   
  94:3745     95:4196     96:1277     97:317      98:1023     99:737    
 100:73      101:1174    102:3510    103:32313   104:4804    105:692    
 106:1004    107:2486    108:1153    109:4062    110:2131    111:3261   
 112:2055    113:1820    114:1820    115:2085    116:1974    117:2658   
 118:2801    119:1981    120:1808    121:1364    122:2697    123:2284   
 124:1625    125:2863    126:32      128:1428    129:931     130:1181   
 131:1870    132:812     133:416     134:1733    135:318     136:1121   
 137:1085    138:2860    139:1523    140:1419    141:1368    142:1668   
 143:1555    144:1022    145:362     146:2101    147:2007    148:2522   
 149:2782    150:1033    151:1360    152:2225    153:521     154:6948   
 155:1492    156:2178    157:1878    158:1170    159:2441    160:2794   
 161:1696    162:3540    163:1706    164:1666    165:2130    166:1251   
 167:1817    168:4052    169:801     170:4976    171:1045    172:3881   
 173:3062    174:892     175:1235    176:3437    177:4605    178:3685   
 179:2193    180:2415    181:3791    182:3335    183:1981    184:2258   
 185:20880   186:4933    187:4333    188:4051    189:4140    190:9465   
 191:1501    192:11056   193:9160    194:7474    195:5303    196:3208   
 197:2666    198:6055    199:7992    200:8092    201:6222    202:10511  
 203:10282   204:4586    205:3705    206:4499    207:3610    208:4171   
 209:5052    210:4645    211:2624    212:4361    213:3594    214:1053   
 215:49      216:6746    217:3064    218:1394    219:589     220:2026   
 221:1035    222:856     223:2254   

End of report


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