[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Feb 11 18:02:57 UTC 2022
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 12 Feb, 2022
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: 888216
Prefixes after maximum aggregation (per Origin AS): 334710
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 427455
Total ASes present in the Internet Routing Table: 72833
Prefixes per ASN: 12.20
Origin-only ASes present in the Internet Routing Table: 62489
Origin ASes announcing only one prefix: 25802
Transit ASes present in the Internet Routing Table: 10344
Transit-only ASes present in the Internet Routing Table: 368
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 53
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 962
Number of instances of unregistered ASNs: 965
Number of 32-bit ASNs allocated by the RIRs: 38545
Number of 32-bit ASNs visible in the Routing Table: 32109
Prefixes from 32-bit ASNs in the Routing Table: 149645
Number of bogon 32-bit ASNs visible in the Routing Table: 22
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 562
Number of addresses announced to Internet: 3068928512
Equivalent to 182 /8s, 236 /16s and 34 /24s
Percentage of available address space announced: 82.9
Percentage of allocated address space announced: 82.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 300423
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 233450
Total APNIC prefixes after maximum aggregation: 65864
APNIC Deaggregation factor: 3.54
Prefixes being announced from the APNIC address blocks: 228289
Unique aggregates announced from the APNIC address blocks: 94179
APNIC Region origin ASes present in the Internet Routing Table: 12370
APNIC Prefixes per ASN: 18.46
APNIC Region origin ASes announcing only one prefix: 3541
APNIC Region transit ASes present in the Internet Routing Table: 1714
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7566
Number of APNIC addresses announced to Internet: 774475904
Equivalent to 46 /8s, 41 /16s and 144 /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: 258538
Total ARIN prefixes after maximum aggregation: 119014
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 258644
Unique aggregates announced from the ARIN address blocks: 123403
ARIN Region origin ASes present in the Internet Routing Table: 18983
ARIN Prefixes per ASN: 13.63
ARIN Region origin ASes announcing only one prefix: 6899
ARIN Region transit ASes present in the Internet Routing Table: 1960
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4342
Number of ARIN addresses announced to Internet: 1295964160
Equivalent to 77 /8s, 62 /16s and 216 /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: 253719
Total RIPE prefixes after maximum aggregation: 116382
RIPE Deaggregation factor: 2.18
Prefixes being announced from the RIPE address blocks: 250101
Unique aggregates announced from the RIPE address blocks: 148984
RIPE Region origin ASes present in the Internet Routing Table: 28185
RIPE Prefixes per ASN: 8.87
RIPE Region origin ASes announcing only one prefix: 12134
RIPE Region transit ASes present in the Internet Routing Table: 3977
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10644
Number of RIPE addresses announced to Internet: 713448576
Equivalent to 42 /8s, 134 /16s and 92 /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: 113955
Total LACNIC prefixes after maximum aggregation: 27367
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 114689
Unique aggregates announced from the LACNIC address blocks: 48536
LACNIC Region origin ASes present in the Internet Routing Table: 10944
LACNIC Prefixes per ASN: 10.48
LACNIC Region origin ASes announcing only one prefix: 2676
LACNIC Region transit ASes present in the Internet Routing Table: 2210
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 53
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8630
Number of LACNIC addresses announced to Internet: 176510208
Equivalent to 10 /8s, 133 /16s and 85 /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: 27592
Total AfriNIC prefixes after maximum aggregation: 5367
AfriNIC Deaggregation factor: 5.14
Prefixes being announced from the AfriNIC address blocks: 35931
Unique aggregates announced from the AfriNIC address blocks: 11875
AfriNIC Region origin ASes present in the Internet Routing Table: 1593
AfriNIC Prefixes per ASN: 22.56
AfriNIC Region origin ASes announcing only one prefix: 552
AfriNIC Region transit ASes present in the Internet Routing Table: 312
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 34
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 927
Number of AfriNIC addresses announced to Internet: 108164608
Equivalent to 6 /8s, 114 /16s and 118 /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 9059 8886 46 CHINAMOBILE-CN China Mobile Communicati
7545 5867 788 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4681 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3596 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3484 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3435 1880 57 VNPT-AS-VN VNPT Corp, VN
4766 2557 11123 631 KIXS-AS-KR Korea Telecom, KR
9498 2317 475 235 BBIL-AP BHARTI Airtel Ltd., IN
45090 2170 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2114 429 198 TATACOMM-AS TATA Communications formerl
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 6241 10151 2680 AMAZON-02, US
11492 4514 299 785 CABLEONE, US
22773 3963 3028 367 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3902 264 30 VIASAT-SP-BACKBONE, US
16625 3650 1883 2564 AKAMAI-AS, US
6327 3376 1318 63 SHAW, CA
749 2887 50780 2143 DNIC-AS-00749, US
30036 2608 374 150 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2519 4962 428 CENTURYLINK-US-LEGACY-QWEST, US
20115 2253 3036 500 CHARTER-20115, 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 6801 1715 152 UNI2-AS, ES
9121 6745 1692 17 TTNET, TR
8551 4004 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3887 3347 207 AKAMAI-ASN1, NL
39891 3274 188 25 ALJAWWALSTC-AS, SA
12389 2961 2274 910 ROSTELECOM-AS, RU
9009 2469 250 1285 M247, GB
34984 2225 358 604 TELLCOM-AS, TR
47331 1953 312 1490 TTNET, TR
58224 1792 929 580 TCI, IR
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 10268 3415 566 Uninet S.A. de C.V., MX
10620 3458 519 719 Telmex Colombia S.A., CO
11830 2456 369 62 Instituto Costarricense de Electricidad
13999 1666 284 474 Mega Cable, S.A. de C.V., MX
6503 1441 354 524 Axtel, S.A.B. de C.V., MX
28573 1400 2330 246 CLARO S.A., BR
3816 1246 651 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1149 2351 140 TIM SA, BR
6147 1096 369 21 Telefonica del Peru S.A.A., PE
11664 1001 191 447 Techtel LMDS Comunicaciones Interactiva
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 1607 393 21 LINKdotNET-AS, EG
24835 1546 515 32 RAYA-AS, EG
36992 1299 1518 262 ETISALAT-MISR, EG
36903 1195 543 114 MT-MPLS, MA
29571 895 63 57 ORANGE-COTE-IVOIRE, CI
36935 735 521 39 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 519 50 33 WANANCHI-, KE
37342 468 32 1 MOVITEL, MZ
23889 422 232 16 MauritiusTelecom, MU
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 10268 3415 566 Uninet S.A. de C.V., MX
9808 9059 8886 46 CHINAMOBILE-CN China Mobile Communicati
12479 6801 1715 152 UNI2-AS, ES
9121 6745 1692 17 TTNET, TR
16509 6241 10151 2680 AMAZON-02, US
7545 5867 788 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4681 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4514 299 785 CABLEONE, US
8551 4004 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
22773 3963 3028 367 ASN-CXA-ALL-CCI-22773-RDC, 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 9059 9013 CHINAMOBILE-CN China Mobile Communications Grou
9121 6745 6728 TTNET, TR
12479 6801 6649 UNI2-AS, ES
7545 5867 5176 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4681 4607 ERX-CERNET-BKB China Education and Research Net
8551 4004 3965 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3902 3872 VIASAT-SP-BACKBONE, US
11492 4514 3729 CABLEONE, US
20940 3887 3680 AKAMAI-ASN1, NL
22773 3963 3596 ASN-CXA-ALL-CCI-22773-RDC, US
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
46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US
18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US
32306 UNALLOCATED 8.46.80.0/24 33652 CMCS, US
17033 UNALLOCATED 8.48.225.0/24 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
23.141.0.0/24 Origin: 395350 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.252.160.0/24 Origin: 398968 GROUP-IID-01, US
23.252.160.0/24 Transit: 174 COGENT-174, US
23.252.161.0/24 Origin: 398968 GROUP-IID-01, US
23.252.161.0/24 Transit: 174 COGENT-174, US
23.252.163.0/24 Origin: 398968 GROUP-IID-01, US
23.252.163.0/24 Transit: 174 COGENT-174, US
23.252.164.0/24 Origin: 398968 GROUP-IID-01, US
23.252.164.0/24 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 /9:13 /10:40 /11:102 /12:305
/13:590 /14:1204 /15:2034 /16:13577 /17:8355 /18:13897
/19:25165 /20:43382 /21:52167 /22:108288 /23:95228 /24:523062
/25:791 /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
9121 5908 6745 TTNET, TR
12479 5765 6801 UNI2-AS, ES
8151 3943 10268 Uninet S.A. de C.V., MX
8551 3469 4004 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3436 4514 CABLEONE, US
6327 3187 3376 SHAW, CA
7155 2992 3902 VIASAT-SP-BACKBONE, US
22773 2956 3963 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2810 3274 ALJAWWALSTC-AS, SA
30036 2263 2608 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1924 2:996 3:153 4:7 5:3744 6:103
7:5 8:1559 9:1 11:172 12:1720 13:415
14:2386 15:160 16:39 17:368 18:137 20:167
21:4 22:188 23:5486 24:2337 25:6 27:2585
29:19 31:2414 32:98 34:1 35:58 36:1734
37:3947 38:2518 39:681 40:149 41:3924 42:1058
43:2091 44:288 45:15960 46:3885 47:303 49:1639
50:1913 51:107 52:1361 53:1 54:293 55:755
56:8 57:55 58:1764 59:1165 60:959 61:2266
62:2442 63:1938 64:5499 65:2307 66:4901 67:2932
68:1177 69:4165 70:1347 71:672 72:3056 74:2630
75:1515 76:717 77:2120 78:3810 79:3099 80:1951
81:1663 82:1457 83:1194 84:1336 85:3625 86:714
87:1952 88:2621 89:3190 90:506 91:7533 92:1886
93:2595 94:3262 95:4488 96:1309 97:345 98:988
99:862 100:75 101:1032 102:1960 103:28252 104:4137
105:463 106:812 107:2459 108:768 109:4182 110:2058
111:3258 112:1965 113:1531 114:1535 115:1955 116:1896
117:2496 118:2328 119:1827 120:1667 121:1031 122:2543
123:2110 124:1611 125:2090 128:1348 129:1201 130:926
131:2084 132:760 133:370 134:1925 135:287 136:860
137:861 138:2436 139:1221 140:883 141:1354 142:1255
143:1443 144:1230 145:344 146:1770 147:1471 148:2218
149:1686 150:857 151:1078 152:1825 153:448 154:3591
155:1340 156:1878 157:1221 158:1012 159:2044 160:2402
161:1301 162:3447 163:1217 164:1662 165:1573 166:633
167:1692 168:3703 169:682 170:4335 171:824 172:3002
173:3061 174:1024 175:1128 176:3519 177:4603 178:3031
179:1994 180:2286 181:2928 182:3243 183:1920 184:2391
185:19285 186:4293 187:3573 188:3809 189:3020 190:8841
191:1316 192:11033 193:8516 194:6917 195:4983 196:2923
197:2359 198:5997 199:6008 200:7507 201:5660 202:10402
203:9993 204:4541 205:3357 206:3852 207:3403 208:4009
209:4631 210:4235 211:2454 212:3942 213:3378 214:1158
215:64 216:6382 217:2652 218:1247 219:600 220:1955
221:988 222:857 223:2173
End of report
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