[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Dec 8 18:02:14 UTC 2023
This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.
Daily listings are sent to bgp-stats at lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 09 Dec, 2023
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: 936367
Prefixes after maximum aggregation (per Origin AS): 357087
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 455742
Total ASes present in the Internet Routing Table: 75116
Prefixes per ASN: 12.47
Origin-only ASes present in the Internet Routing Table: 64439
Origin ASes announcing only one prefix: 26531
Transit ASes present in the Internet Routing Table: 10677
Transit-only ASes present in the Internet Routing Table: 474
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 1031
Number of instances of unregistered ASNs: 1033
Number of 32-bit ASNs allocated by the RIRs: 43201
Number of 32-bit ASNs visible in the Routing Table: 35494
Prefixes from 32-bit ASNs in the Routing Table: 178380
Number of bogon 32-bit ASNs visible in the Routing Table: 18
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 514
Number of addresses announced to Internet: 3049008640
Equivalent to 181 /8s, 188 /16s and 46 /24s
Percentage of available address space announced: 82.4
Percentage of allocated address space announced: 82.4
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: 310382
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 249706
Total APNIC prefixes after maximum aggregation: 72069
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 242887
Unique aggregates announced from the APNIC address blocks: 99410
APNIC Region origin ASes present in the Internet Routing Table: 13816
APNIC Prefixes per ASN: 17.58
APNIC Region origin ASes announcing only one prefix: 4152
APNIC Region transit ASes present in the Internet Routing Table: 1861
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 32
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9149
Number of APNIC addresses announced to Internet: 771420032
Equivalent to 45 /8s, 250 /16s and 239 /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: 273633
Total ARIN prefixes after maximum aggregation: 124620
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 278333
Unique aggregates announced from the ARIN address blocks: 132968
ARIN Region origin ASes present in the Internet Routing Table: 19075
ARIN Prefixes per ASN: 14.59
ARIN Region origin ASes announcing only one prefix: 6950
ARIN Region transit ASes present in the Internet Routing Table: 1957
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: 4818
Number of ARIN addresses announced to Internet: 1276553984
Equivalent to 76 /8s, 22 /16s and 171 /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: 261778
Total RIPE prefixes after maximum aggregation: 124834
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 256282
Unique aggregates announced from the RIPE address blocks: 160693
RIPE Region origin ASes present in the Internet Routing Table: 28495
RIPE Prefixes per ASN: 8.99
RIPE Region origin ASes announcing only one prefix: 12114
RIPE Region transit ASes present in the Internet Routing Table: 3944
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 37
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11473
Number of RIPE addresses announced to Internet: 714656896
Equivalent to 42 /8s, 152 /16s and 204 /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: 119803
Total LACNIC prefixes after maximum aggregation: 28851
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 118552
Unique aggregates announced from the LACNIC address blocks: 49442
LACNIC Region origin ASes present in the Internet Routing Table: 11059
LACNIC Prefixes per ASN: 10.72
LACNIC Region origin ASes announcing only one prefix: 2679
LACNIC Region transit ASes present in the Internet Routing Table: 2360
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: 8903
Number of LACNIC addresses announced to Internet: 178422784
Equivalent to 10 /8s, 162 /16s and 132 /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: 30416
Total AfriNIC prefixes after maximum aggregation: 6040
AfriNIC Deaggregation factor: 5.04
Prefixes being announced from the AfriNIC address blocks: 39799
Unique aggregates announced from the AfriNIC address blocks: 12809
AfriNIC Region origin ASes present in the Internet Routing Table: 1811
AfriNIC Prefixes per ASN: 21.98
AfriNIC Region origin ASes announcing only one prefix: 636
AfriNIC Region transit ASes present in the Internet Routing Table: 349
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 27
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1151
Number of AfriNIC addresses announced to Internet: 107593728
Equivalent to 6 /8s, 105 /16s and 192 /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 9769 8730 44 CHINAMOBILE-CN China Mobile Communicati
7545 5678 784 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4925 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4419 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3602 1047 70 TELKOMNET-AS-AP PT Telekomunikasi Indon
9498 3387 494 252 BBIL-AP BHARTI Airtel Ltd., IN
45899 3266 1872 99 VNPT-AS-VN VNPT Corp, VN
7552 2988 1330 20 VIETEL-AS-AP Viettel Group, VN
24560 2640 853 366 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2485 11259 586 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 9463 11189 3329 AMAZON-02, US
11492 4561 303 681 CABLEONE, US
7155 4175 288 96 VIASAT-SP-BACKBONE, US
6327 3560 1320 68 SHAW, CA
22773 3507 3055 301 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3188 1418 2330 AKAMAI-AS, US
749 3163 54930 2415 DNIC-AS-00749, US
367 2988 3842 1417 DNIC-ASBLK-00306-00371, US
396982 2724 3631 375 GOOGLE-CLOUD-PLATFORM, US
7018 2576 23628 1594 ATT-INTERNET4, 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 7555 1714 146 UNI2-AS, ES
39891 4502 267 55 ALJAWWALSTC-AS, SA
20940 4010 3397 142 AKAMAI-ASN1, NL
9009 3482 299 1634 M247, RO
12389 2948 2299 905 ROSTELECOM-AS, RU
8551 2940 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
34984 2326 360 590 TELLCOM-AS, TR
58224 1610 895 586 TCI, IR
13188 1607 100 26 TRIOLAN, UA
8452 1521 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 12133 3379 595 UNINET, MX
10620 3518 496 885 Telmex Colombia S.A., CO
13999 2482 338 637 Mega Cable, S.A. de C.V., MX
11830 2004 369 64 Instituto Costarricense de Electricidad
28573 1345 2321 241 Claro NXT Telecomunicacoes Ltda, BR
3816 1306 787 197 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1242 341 503 Axtel, S.A.B. de C.V., MX
11664 1099 175 434 Techtel LMDS Comunicaciones Interactiva
6147 1080 369 22 Telefonica del Peru S.A.A., PE
26615 1048 2502 52 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 1591 389 16 LINKdotNET-AS, EG
24835 1548 545 28 RAYA-AS, EG
36992 1359 1518 280 ETISALAT-MISR, EG
36903 1248 553 98 MT-MPLS, MA
29571 1045 67 51 ORANGE-COTE-IVOIRE, CI
36935 936 521 43 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 534 55 54 WANANCHI-, KE
36914 521 82 3 KENET-AS, KE
37342 491 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 12133 3379 595 UNINET, MX
9808 9769 8730 44 CHINAMOBILE-CN China Mobile Communicati
16509 9463 11189 3329 AMAZON-02, US
12479 7555 1714 146 UNI2-AS, ES
7545 5678 784 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4925 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4561 303 681 CABLEONE, US
39891 4502 267 55 ALJAWWALSTC-AS, SA
18403 4419 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4175 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 9769 9725 CHINAMOBILE-CN China Mobile Communications Grou
12479 7555 7409 UNI2-AS, ES
16509 9463 6134 AMAZON-02, US
7545 5678 4987 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4925 4850 ERX-CERNET-BKB China Education and Research Net
39891 4502 4447 ALJAWWALSTC-AS, SA
18403 4419 4394 FPT-AS-AP FPT Telecom Company, VN
7155 4175 4079 VIASAT-SP-BACKBONE, US
11492 4561 3880 CABLEONE, US
20940 4010 3868 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
65536 DOCUMENT 5.102.30.0/24 65512 -Private Use AS-, ZZ
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
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
23.176.160.0/24 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
36.255.139.0/24 Origin: 56050 NEW-SHINE-INTERNET-TH 134 Yenchit Road,
36.255.139.0/24 Transit: 58913 HCL-TH 4819 Supapong 3 Alley, Srinakarin
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 /10:38 /11:99 /12:298
/13:582 /14:1192 /15:2063 /16:13465 /17:8304 /18:13845
/19:25143 /20:44391 /21:51626 /22:110750 /23:99737 /24:564071
/25:733 /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 6644 7555 UNI2-AS, ES
8151 6147 12133 UNINET, MX
11492 3475 4561 CABLEONE, US
6327 3367 3560 SHAW, CA
39891 3256 4502 ALJAWWALSTC-AS, SA
7155 3119 4175 VIASAT-SP-BACKBONE, US
22773 2560 3507 ASN-CXA-ALL-CCI-22773-RDC, US
8551 2417 2940 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2126 2471 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2121 3518 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2273 2:1422 3:280 4:5 5:4395 6:160
7:6 8:1534 9:1 11:172 12:1488 13:374
14:2328 15:304 16:206 17:362 18:707 20:328
21:4 22:188 23:6546 24:2599 25:2 27:2525
29:19 31:2543 32:56 34:33 35:119 36:2046
37:4466 38:5711 39:881 40:150 41:4104 42:2141
43:2335 44:329 45:16698 46:4394 47:286 49:1901
50:1889 51:573 52:1598 54:395 55:803 56:5
57:127 58:1919 59:1177 60:1007 61:2565 62:2728
63:1911 64:5463 65:2342 66:5032 67:3052 68:1356
69:4083 70:1183 71:606 72:2932 74:2641 75:1564
76:628 77:2275 78:1823 79:2994 80:2122 81:1863
82:1518 83:1325 84:1625 85:2978 86:784 87:1967
88:1236 89:3929 90:641 91:7884 92:2176 93:2639
94:3580 95:3994 96:1299 97:316 98:1017 99:738
100:94 101:1150 102:2996 103:32494 104:4793 105:594
106:986 107:2747 108:1140 109:3760 110:2137 111:3195
112:2083 113:1762 114:1751 115:1993 116:1954 117:2493
118:2752 119:1949 120:1808 121:1290 122:2639 123:2217
124:1646 125:2780 128:1485 129:915 130:1057 131:1982
132:835 133:410 134:1707 135:295 136:914 137:987
138:2712 139:1577 140:1343 141:1347 142:1541 143:1525
144:1009 145:344 146:1987 147:1638 148:2471 149:2377
150:1011 151:1289 152:1831 153:527 154:5310 155:1377
156:2133 157:1369 158:1085 159:2204 160:2618 161:1616
162:3564 163:1646 164:1637 165:1866 166:1110 167:1769
168:3848 169:799 170:4695 171:966 172:3762 173:3003
174:905 175:1212 176:3607 177:4570 178:3532 179:2231
180:2310 181:3598 182:3442 183:2024 184:2252 185:20481
186:4747 187:4270 188:4001 189:3974 190:9326 191:1494
192:11018 193:8978 194:7301 195:5225 196:3143 197:2654
198:6026 199:6662 200:8061 201:6242 202:10593 203:10068
204:4601 205:3675 206:4440 207:3498 208:4107 209:4933
210:4542 211:2560 212:4217 213:3395 214:1116 215:63
216:6752 217:2747 218:1324 219:587 220:2026 221:1014
222:880 223:2228
End of report
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