[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Apr 21 18:03:31 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
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 22 Apr, 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: 918940
Prefixes after maximum aggregation (per Origin AS): 348842
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 448780
Total ASes present in the Internet Routing Table: 74349
Prefixes per ASN: 12.36
Origin-only ASes present in the Internet Routing Table: 63776
Origin ASes announcing only one prefix: 26197
Transit ASes present in the Internet Routing Table: 10573
Transit-only ASes present in the Internet Routing Table: 439
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 1361
Number of instances of unregistered ASNs: 1361
Number of 32-bit ASNs allocated by the RIRs: 41703
Number of 32-bit ASNs visible in the Routing Table: 34496
Prefixes from 32-bit ASNs in the Routing Table: 170505
Number of bogon 32-bit ASNs visible in the Routing Table: 13
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 857
Number of addresses announced to Internet: 3061027072
Equivalent to 182 /8s, 115 /16s and 145 /24s
Percentage of available address space announced: 82.7
Percentage of allocated address space announced: 82.7
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: 307074
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 242581
Total APNIC prefixes after maximum aggregation: 69276
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 236874
Unique aggregates announced from the APNIC address blocks: 97897
APNIC Region origin ASes present in the Internet Routing Table: 13392
APNIC Prefixes per ASN: 17.69
APNIC Region origin ASes announcing only one prefix: 3937
APNIC Region transit ASes present in the Internet Routing Table: 1801
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 32
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8693
Number of APNIC addresses announced to Internet: 773697152
Equivalent to 46 /8s, 29 /16s and 174 /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, 131072-151865
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: 268810
Total ARIN prefixes after maximum aggregation: 122340
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 271345
Unique aggregates announced from the ARIN address blocks: 130919
ARIN Region origin ASes present in the Internet Routing Table: 19084
ARIN Prefixes per ASN: 14.22
ARIN Region origin ASes announcing only one prefix: 6957
ARIN Region transit ASes present in the Internet Routing Table: 1960
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4790
Number of ARIN addresses announced to Internet: 1284384768
Equivalent to 76 /8s, 142 /16s and 40 /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: 259272
Total RIPE prefixes after maximum aggregation: 122099
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 255283
Unique aggregates announced from the RIPE address blocks: 157840
RIPE Region origin ASes present in the Internet Routing Table: 28311
RIPE Prefixes per ASN: 9.02
RIPE Region origin ASes announcing only one prefix: 12055
RIPE Region transit ASes present in the Internet Routing Table: 3968
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11152
Number of RIPE addresses announced to Internet: 717903232
Equivalent to 42 /8s, 202 /16s and 85 /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
196608-213403
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: 117706
Total LACNIC prefixes after maximum aggregation: 28516
LACNIC Deaggregation factor: 4.13
Prefixes being announced from the LACNIC address blocks: 116976
Unique aggregates announced from the LACNIC address blocks: 49247
LACNIC Region origin ASes present in the Internet Routing Table: 10982
LACNIC Prefixes per ASN: 10.65
LACNIC Region origin ASes announcing only one prefix: 2638
LACNIC Region transit ASes present in the Internet Routing Table: 2301
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 55
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8773
Number of LACNIC addresses announced to Internet: 176780544
Equivalent to 10 /8s, 137 /16s and 117 /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: 29210
Total AfriNIC prefixes after maximum aggregation: 5806
AfriNIC Deaggregation factor: 5.03
Prefixes being announced from the AfriNIC address blocks: 37605
Unique aggregates announced from the AfriNIC address blocks: 12289
AfriNIC Region origin ASes present in the Internet Routing Table: 1743
AfriNIC Prefixes per ASN: 21.57
AfriNIC Region origin ASes announcing only one prefix: 610
AfriNIC Region transit ASes present in the Internet Routing Table: 341
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1088
Number of AfriNIC addresses announced to Internet: 107590144
Equivalent to 6 /8s, 105 /16s and 178 /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 9481 8706 40 CHINAMOBILE-CN China Mobile Communicati
7545 5727 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4859 4192 75 ERX-CERNET-BKB China Education and Rese
7713 3546 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3393 1872 93 VNPT-AS-VN VNPT Corp, VN
7552 3057 1331 21 VIETEL-AS-AP Viettel Group, VN
9498 2938 490 237 BBIL-AP BHARTI Airtel Ltd., IN
4766 2551 11252 591 KIXS-AS-KR Korea Telecom, KR
24560 2380 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
45090 2184 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
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 8228 10773 2938 AMAZON-02, US
11492 4543 301 602 CABLEONE, US
7155 3969 279 48 VIASAT-SP-BACKBONE, US
22773 3594 3057 284 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3522 1320 64 SHAW, CA
16625 3165 1584 2358 AKAMAI-AS, US
749 3071 53111 2323 DNIC-AS-00749, US
396982 2631 3590 363 GOOGLE-CLOUD-PLATFORM, US
7018 2572 24122 1566 ATT-INTERNET4, US
30036 2510 362 438 MEDIACOM-ENTERPRISE-BUSINESS, 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 7217 1706 140 UNI2-AS, ES
39891 4833 286 59 ALJAWWALSTC-AS, SA
20940 4076 3399 164 AKAMAI-ASN1, NL
8551 3893 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2951 2292 909 ROSTELECOM-AS, RU
9009 2659 250 1390 M247, RO
34984 2276 359 612 TELLCOM-AS, TR
6849 2018 307 18 UKRTELNET, UA
58224 1851 950 543 TCI, IR
13188 1606 100 26 TRIOLAN, UA
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 11234 3361 589 Uninet S.A. de C.V., MX
10620 3502 507 853 Telmex Colombia S.A., CO
13999 2325 357 613 Mega Cable, S.A. de C.V., MX
11830 2260 369 64 Instituto Costarricense de Electricidad
28573 1334 2324 240 Claro NXT Telecomunicacoes Ltda, BR
6503 1299 339 514 Axtel, S.A.B. de C.V., MX
3816 1293 760 170 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1132 370 22 Telefonica del Peru S.A.A., PE
11664 1098 180 444 Techtel LMDS Comunicaciones Interactiva
26615 1032 2498 45 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 1578 393 19 LINKdotNET-AS, EG
24835 1553 533 30 RAYA-AS, EG
36992 1338 1518 275 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1025 67 51 ORANGE-COTE-IVOIRE, CI
36935 875 520 42 Vodafone-, EG
6713 549 1861 34 IAM-AS, MA
15399 535 54 47 WANANCHI-, KE
37342 493 32 1 MOVITEL, MZ
24757 485 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 11234 3361 589 Uninet S.A. de C.V., MX
9808 9481 8706 40 CHINAMOBILE-CN China Mobile Communicati
16509 8228 10773 2938 AMAZON-02, US
12479 7217 1706 140 UNI2-AS, ES
7545 5727 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4859 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4833 286 59 ALJAWWALSTC-AS, SA
11492 4543 301 602 CABLEONE, US
20940 4076 3399 164 AKAMAI-ASN1, NL
7155 3969 279 48 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 9481 9441 CHINAMOBILE-CN China Mobile Communications Grou
12479 7217 7077 UNI2-AS, ES
16509 8228 5290 AMAZON-02, US
7545 5727 5036 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4859 4784 ERX-CERNET-BKB China Education and Research Net
39891 4833 4774 ALJAWWALSTC-AS, SA
11492 4543 3941 CABLEONE, US
7155 3969 3921 VIASAT-SP-BACKBONE, US
20940 4076 3912 AKAMAI-ASN1, NL
8551 3893 3856 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
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
198802 UNALLOCATED 5.105.41.0/24 207279 MARKAHOST-TELEKOMUNIKASYON-L
198802 UNALLOCATED 5.105.82.0/24 207279 MARKAHOST-TELEKOMUNIKASYON-L
198802 UNALLOCATED 5.105.102.0/24 207279 MARKAHOST-TELEKOMUNIKASYON-L
3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V.,
198802 UNALLOCATED 5.105.197.0/24 207279 MARKAHOST-TELEKOMUNIKASYON-L
33492 UNALLOCATED 8.6.184.0/23 33650 COMCAST-33650, US
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
62828 UNALLOCATED 8.21.130.0/24 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
23.131.185.0/24 Origin: 174 COGENT-174, US
23.131.185.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.186.0/24 Origin: 174 COGENT-174, US
23.131.186.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.187.0/24 Origin: 174 COGENT-174, US
23.131.187.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.188.0/24 Origin: 174 COGENT-174, US
23.131.188.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.139.232.0/24 Origin: 211619 MAXKO, HR
23.139.232.0/24 Transit: 42864 GIGANET-HU GigaNet Internet Service Prov
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 /10:39 /11:103 /12:298
/13:578 /14:1196 /15:2050 /16:13461 /17:8245 /18:13834
/19:25155 /20:44224 /21:51231 /22:109545 /23:97693 /24:550516
/25:742 /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 6274 7217 UNI2-AS, ES
8151 5176 11234 Uninet S.A. de C.V., MX
39891 3632 4833 ALJAWWALSTC-AS, SA
11492 3452 4543 CABLEONE, US
8551 3365 3893 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3331 3522 SHAW, CA
7155 3039 3969 VIASAT-SP-BACKBONE, US
22773 2659 3594 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2167 2510 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2056 3502 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1806 2:1268 3:175 4:5 5:4498 6:128
7:6 8:1546 9:1 11:172 12:1548 13:385
14:2322 15:299 16:183 17:369 18:415 20:256
21:4 22:188 23:6255 24:2588 25:6 27:2449
29:19 31:2507 32:89 34:12 35:108 36:1923
37:4648 38:4458 39:820 40:151 41:3940 42:1220
43:2348 44:308 45:16552 46:4279 47:363 49:1754
50:1840 51:573 52:1589 54:391 55:859 56:8
57:113 58:1782 59:1153 60:989 61:2457 62:2655
63:1923 64:5684 65:2323 66:4969 67:3004 68:1377
69:4152 70:1249 71:674 72:2981 74:2629 75:1443
76:612 77:2439 78:1865 79:3175 80:2098 81:1737
82:1489 83:1284 84:1533 85:2995 86:762 87:1985
88:1240 89:3642 90:611 91:7719 92:2063 93:2630
94:3596 95:4011 96:1327 97:336 98:1154 99:745
100:73 101:1071 102:2680 103:31273 104:4653 105:484
106:943 107:2527 108:1031 109:4427 110:2084 111:3139
112:2034 113:1608 114:1652 115:2020 116:1925 117:2509
118:2358 119:2015 120:1799 121:1111 122:2631 123:2213
124:1614 125:2516 128:1301 129:1063 130:1015 131:1983
132:813 133:422 134:1898 135:304 136:877 137:949
138:2564 139:1577 140:1238 141:1454 142:1437 143:1504
144:1165 145:347 146:1943 147:1578 148:2350 149:2107
150:879 151:1158 152:1817 153:489 154:4471 155:1434
156:1773 157:1304 158:1056 159:2302 160:2552 161:1531
162:3519 163:1522 164:1624 165:1718 166:1037 167:1729
168:3893 169:944 170:4598 171:869 172:3558 173:2950
174:1072 175:1158 176:3699 177:4563 178:3586 179:2159
180:2572 181:3420 182:3372 183:1968 184:2359 185:20191
186:4711 187:3933 188:4115 189:3564 190:9155 191:1432
192:10934 193:8884 194:7316 195:5159 196:3066 197:2370
198:5949 199:6098 200:7986 201:5852 202:10666 203:10221
204:4597 205:3547 206:4169 207:3440 208:4078 209:4865
210:4435 211:2495 212:4126 213:3577 214:1083 215:59
216:6640 217:2703 218:1294 219:577 220:2019 221:971
222:885 223:2184
End of report
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