[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 3 18:03:30 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 04 Mar, 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: 915877
Prefixes after maximum aggregation (per Origin AS): 346961
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 446240
Total ASes present in the Internet Routing Table: 74173
Prefixes per ASN: 12.35
Origin-only ASes present in the Internet Routing Table: 63640
Origin ASes announcing only one prefix: 26126
Transit ASes present in the Internet Routing Table: 10533
Transit-only ASes present in the Internet Routing Table: 445
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: 1039
Number of instances of unregistered ASNs: 1055
Number of 32-bit ASNs allocated by the RIRs: 41345
Number of 32-bit ASNs visible in the Routing Table: 34262
Prefixes from 32-bit ASNs in the Routing Table: 167731
Number of bogon 32-bit ASNs visible in the Routing Table: 39
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 532
Number of addresses announced to Internet: 3063466752
Equivalent to 182 /8s, 152 /16s and 203 /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: 306375
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 242621
Total APNIC prefixes after maximum aggregation: 69112
APNIC Deaggregation factor: 3.51
Prefixes being announced from the APNIC address blocks: 237131
Unique aggregates announced from the APNIC address blocks: 97910
APNIC Region origin ASes present in the Internet Routing Table: 13342
APNIC Prefixes per ASN: 17.77
APNIC Region origin ASes announcing only one prefix: 3892
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: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8617
Number of APNIC addresses announced to Internet: 773691776
Equivalent to 46 /8s, 29 /16s and 153 /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: 267916
Total ARIN prefixes after maximum aggregation: 121637
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 270075
Unique aggregates announced from the ARIN address blocks: 130267
ARIN Region origin ASes present in the Internet Routing Table: 19058
ARIN Prefixes per ASN: 14.17
ARIN Region origin ASes announcing only one prefix: 6966
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: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4745
Number of ARIN addresses announced to Internet: 1286859264
Equivalent to 76 /8s, 179 /16s and 234 /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: 257386
Total RIPE prefixes after maximum aggregation: 121252
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 253796
Unique aggregates announced from the RIPE address blocks: 156624
RIPE Region origin ASes present in the Internet Routing Table: 28232
RIPE Prefixes per ASN: 8.99
RIPE Region origin ASes announcing only one prefix: 12007
RIPE Region transit ASes present in the Internet Routing Table: 3949
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11050
Number of RIPE addresses announced to Internet: 718465920
Equivalent to 42 /8s, 210 /16s and 235 /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: 117790
Total LACNIC prefixes after maximum aggregation: 28486
LACNIC Deaggregation factor: 4.14
Prefixes being announced from the LACNIC address blocks: 117129
Unique aggregates announced from the LACNIC address blocks: 48798
LACNIC Region origin ASes present in the Internet Routing Table: 10981
LACNIC Prefixes per ASN: 10.67
LACNIC Region origin ASes announcing only one prefix: 2664
LACNIC Region transit ASes present in the Internet Routing Table: 2277
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: 8779
Number of LACNIC addresses announced to Internet: 176559104
Equivalent to 10 /8s, 134 /16s and 20 /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: 29125
Total AfriNIC prefixes after maximum aggregation: 5708
AfriNIC Deaggregation factor: 5.10
Prefixes being announced from the AfriNIC address blocks: 37214
Unique aggregates announced from the AfriNIC address blocks: 12218
AfriNIC Region origin ASes present in the Internet Routing Table: 1726
AfriNIC Prefixes per ASN: 21.56
AfriNIC Region origin ASes announcing only one prefix: 597
AfriNIC Region transit ASes present in the Internet Routing Table: 334
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: 1071
Number of AfriNIC addresses announced to Internet: 107562240
Equivalent to 6 /8s, 105 /16s and 69 /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 9463 8884 51 CHINAMOBILE-CN China Mobile Communicati
7545 5797 786 692 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4862 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN
7713 3533 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3374 1874 95 VNPT-AS-VN VNPT Corp, VN
9498 2795 499 238 BBIL-AP BHARTI Airtel Ltd., IN
4766 2553 11251 591 KIXS-AS-KR Korea Telecom, KR
24560 2358 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 8040 10755 2872 AMAZON-02, US
11492 4517 299 627 CABLEONE, US
7155 3958 270 43 VIASAT-SP-BACKBONE, US
22773 3652 3064 290 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3504 1320 64 SHAW, CA
16625 3305 1661 2430 AKAMAI-AS, US
749 3033 50571 2300 DNIC-AS-00749, US
396982 2620 3586 356 GOOGLE-CLOUD-PLATFORM, US
7018 2565 24120 1572 ATT-INTERNET4, US
30036 2540 364 392 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 7064 1706 146 UNI2-AS, ES
39891 4561 269 58 ALJAWWALSTC-AS, SA
20940 4056 3399 175 AKAMAI-ASN1, NL
8551 3900 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2950 2292 911 ROSTELECOM-AS, RU
9009 2657 252 1378 M247, RO
34984 2264 359 608 TELLCOM-AS, TR
6849 2164 339 19 UKRTELNET, UA
58224 1847 949 546 TCI, IR
13188 1607 100 27 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 11223 3349 585 Uninet S.A. de C.V., MX
10620 3466 504 876 Telmex Colombia S.A., CO
13999 2264 369 603 Mega Cable, S.A. de C.V., MX
11830 2261 369 64 Instituto Costarricense de Electricidad
28573 1341 2325 254 Claro NXT Telecomunicacoes Ltda, BR
3816 1298 757 159 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1298 339 513 Axtel, S.A.B. de C.V., MX
6147 1128 370 22 Telefonica del Peru S.A.A., PE
11664 1098 180 458 Techtel LMDS Comunicaciones Interactiva
26615 1026 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 1551 393 19 LINKdotNET-AS, EG
24835 1528 533 30 RAYA-AS, EG
36992 1345 1517 276 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1010 67 53 ORANGE-COTE-IVOIRE, CI
36935 854 520 42 Vodafone-, EG
6713 549 1861 34 IAM-AS, MA
15399 527 54 46 WANANCHI-, KE
24757 493 73 5 EthioNet-AS, ET
37342 493 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 11223 3349 585 Uninet S.A. de C.V., MX
9808 9463 8884 51 CHINAMOBILE-CN China Mobile Communicati
16509 8040 10755 2872 AMAZON-02, US
12479 7064 1706 146 UNI2-AS, ES
7545 5797 786 692 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4862 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4561 269 58 ALJAWWALSTC-AS, SA
11492 4517 299 627 CABLEONE, US
20940 4056 3399 175 AKAMAI-ASN1, NL
7155 3958 270 43 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 9463 9412 CHINAMOBILE-CN China Mobile Communications Grou
12479 7064 6918 UNI2-AS, ES
16509 8040 5168 AMAZON-02, US
7545 5797 5105 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4862 4787 ERX-CERNET-BKB China Education and Research Net
39891 4561 4503 ALJAWWALSTC-AS, SA
7155 3958 3915 VIASAT-SP-BACKBONE, US
11492 4517 3890 CABLEONE, US
20940 4056 3881 AKAMAI-ASN1, NL
8551 3900 3863 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
3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V.,
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US
16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US
16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, 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
1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, 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
23.136.112.0/24 Origin: 54835 UNASSIGNED
23.136.112.0/24 Transit: 21559 OSNET, PR
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 /9:13 /10:39 /11:103 /12:299
/13:580 /14:1202 /15:2040 /16:13479 /17:8283 /18:13847
/19:25192 /20:44372 /21:51820 /22:109962 /23:97531 /24:546277
/25:822 /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 6121 7064 UNI2-AS, ES
8151 5224 11223 Uninet S.A. de C.V., MX
39891 3552 4561 ALJAWWALSTC-AS, SA
11492 3433 4517 CABLEONE, US
8551 3372 3900 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3312 3504 SHAW, CA
7155 3035 3958 VIASAT-SP-BACKBONE, US
22773 2697 3652 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2197 2540 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2020 3466 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1683 2:1241 3:168 4:5 5:4335 6:115
7:6 8:1555 9:1 11:172 12:1583 13:391
14:2337 15:293 16:111 17:365 18:398 20:249
21:4 22:188 23:6108 24:2489 25:4 27:2525
29:19 31:2505 32:107 34:8 35:106 36:1919
37:4604 38:4281 39:865 40:152 41:4031 42:1094
43:2343 44:305 45:16415 46:4175 47:381 49:1747
50:1830 51:386 52:1584 54:386 55:862 56:8
57:90 58:1746 59:1170 60:981 61:2436 62:2640
63:1939 64:5627 65:2322 66:4933 67:3030 68:1353
69:4143 70:1270 71:664 72:2976 74:2600 75:1458
76:605 77:2417 78:1851 79:3174 80:2059 81:1733
82:1504 83:1236 84:1532 85:3015 86:757 87:1955
88:1247 89:3623 90:610 91:7674 92:2012 93:2585
94:3507 95:3955 96:1328 97:331 98:1165 99:745
100:77 101:1061 102:2627 103:31048 104:4588 105:483
106:915 107:2541 108:932 109:4391 110:2100 111:3319
112:2045 113:1552 114:1628 115:2043 116:1919 117:2567
118:2276 119:1964 120:1771 121:1115 122:2591 123:2186
124:1586 125:2435 128:1328 129:1071 130:996 131:2011
132:790 133:421 134:1907 135:299 136:863 137:939
138:2581 139:1547 140:1198 141:1467 142:1428 143:1485
144:1209 145:356 146:1906 147:1559 148:2245 149:1929
150:919 151:1147 152:1846 153:487 154:4243 155:1429
156:1674 157:1292 158:1021 159:2266 160:2564 161:1444
162:3549 163:1495 164:1598 165:1678 166:856 167:1723
168:3847 169:924 170:4585 171:900 172:3505 173:2969
174:1015 175:1164 176:3741 177:4747 178:3614 179:2185
180:2385 181:3417 182:3428 183:1936 184:2351 185:20075
186:4679 187:4017 188:4148 189:3637 190:9108 191:1500
192:10962 193:8825 194:7230 195:5126 196:3065 197:2392
198:5958 199:6092 200:7774 201:5879 202:10697 203:10174
204:4601 205:3526 206:3860 207:3442 208:4081 209:4865
210:4464 211:2499 212:4096 213:3560 214:1096 215:55
216:6590 217:2650 218:1287 219:582 220:2018 221:972
222:872 223:2147
End of report
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