[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri May 13 18:02:49 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 14 May, 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: 897555
Prefixes after maximum aggregation (per Origin AS): 338291
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 432305
Total ASes present in the Internet Routing Table: 73179
Prefixes per ASN: 12.27
Origin-only ASes present in the Internet Routing Table: 62817
Origin ASes announcing only one prefix: 25792
Transit ASes present in the Internet Routing Table: 10362
Transit-only ASes present in the Internet Routing Table: 375
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 66
Max AS path prepend of ASN (267602) 58
Prefixes from unregistered ASNs in the Routing Table: 884
Number of instances of unregistered ASNs: 891
Number of 32-bit ASNs allocated by the RIRs: 39367
Number of 32-bit ASNs visible in the Routing Table: 32660
Prefixes from 32-bit ASNs in the Routing Table: 153746
Number of bogon 32-bit ASNs visible in the Routing Table: 28
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 523
Number of addresses announced to Internet: 3069896832
Equivalent to 182 /8s, 250 /16s and 232 /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: 99.6
Total number of prefixes smaller than registry allocations: 304751
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 235080
Total APNIC prefixes after maximum aggregation: 66692
APNIC Deaggregation factor: 3.52
Prefixes being announced from the APNIC address blocks: 230271
Unique aggregates announced from the APNIC address blocks: 94848
APNIC Region origin ASes present in the Internet Routing Table: 12643
APNIC Prefixes per ASN: 18.21
APNIC Region origin ASes announcing only one prefix: 3611
APNIC Region transit ASes present in the Internet Routing Table: 1742
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 32
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7839
Number of APNIC addresses announced to Internet: 776150528
Equivalent to 46 /8s, 67 /16s and 30 /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: 261667
Total ARIN prefixes after maximum aggregation: 120196
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 261536
Unique aggregates announced from the ARIN address blocks: 126040
ARIN Region origin ASes present in the Internet Routing Table: 19026
ARIN Prefixes per ASN: 13.75
ARIN Region origin ASes announcing only one prefix: 6905
ARIN Region transit ASes present in the Internet Routing Table: 1950
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4483
Number of ARIN addresses announced to Internet: 1295698688
Equivalent to 77 /8s, 58 /16s and 203 /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: 257476
Total RIPE prefixes after maximum aggregation: 117662
RIPE Deaggregation factor: 2.19
Prefixes being announced from the RIPE address blocks: 254816
Unique aggregates announced from the RIPE address blocks: 150626
RIPE Region origin ASes present in the Internet Routing Table: 28154
RIPE Prefixes per ASN: 9.05
RIPE Region origin ASes announcing only one prefix: 12039
RIPE Region transit ASes present in the Internet Routing Table: 3974
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10709
Number of RIPE addresses announced to Internet: 713864832
Equivalent to 42 /8s, 140 /16s and 182 /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: 114700
Total LACNIC prefixes after maximum aggregation: 27605
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 114534
Unique aggregates announced from the LACNIC address blocks: 48595
LACNIC Region origin ASes present in the Internet Routing Table: 10965
LACNIC Prefixes per ASN: 10.45
LACNIC Region origin ASes announcing only one prefix: 2671
LACNIC Region transit ASes present in the Internet Routing Table: 2195
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 66
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8664
Number of LACNIC addresses announced to Internet: 176500992
Equivalent to 10 /8s, 133 /16s and 49 /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: 27748
Total AfriNIC prefixes after maximum aggregation: 5449
AfriNIC Deaggregation factor: 5.09
Prefixes being announced from the AfriNIC address blocks: 35875
Unique aggregates announced from the AfriNIC address blocks: 11748
AfriNIC Region origin ASes present in the Internet Routing Table: 1637
AfriNIC Prefixes per ASN: 21.92
AfriNIC Region origin ASes announcing only one prefix: 566
AfriNIC Region transit ASes present in the Internet Routing Table: 327
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: 965
Number of AfriNIC addresses announced to Internet: 107388928
Equivalent to 6 /8s, 102 /16s and 160 /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 9148 8884 44 CHINAMOBILE-CN China Mobile Communicati
7545 5924 789 694 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4708 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3584 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3489 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3429 1880 56 VNPT-AS-VN VNPT Corp, VN
4766 2494 11121 601 KIXS-AS-KR Korea Telecom, KR
9498 2403 499 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2169 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2119 438 203 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 6403 10352 2767 AMAZON-02, US
11492 4494 298 692 CABLEONE, US
22773 3920 3067 354 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3901 264 31 VIASAT-SP-BACKBONE, US
16625 3599 1833 2544 AKAMAI-AS, US
6327 3438 1318 62 SHAW, CA
749 2882 50780 2138 DNIC-AS-00749, US
30036 2624 374 128 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2461 4961 422 CENTURYLINK-US-LEGACY-QWEST, US
20115 2251 3051 492 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 6799 1730 150 UNI2-AS, ES
9121 6725 1692 17 TTNET, TR
8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3952 3360 201 AKAMAI-ASN1, NL
39891 3751 216 30 ALJAWWALSTC-AS, SA
12389 2949 2273 908 ROSTELECOM-AS, RU
6849 2907 355 21 UKRTELNET, UA
9009 2482 248 1288 M247, GB
34984 2238 357 631 TELLCOM-AS, TR
47331 2086 328 1598 TTNET, TR
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 10598 3397 561 Uninet S.A. de C.V., MX
10620 3477 519 738 Telmex Colombia S.A., CO
11830 2433 369 63 Instituto Costarricense de Electricidad
13999 1799 299 470 Mega Cable, S.A. de C.V., MX
6503 1454 355 527 Axtel, S.A.B. de C.V., MX
28573 1402 2333 253 CLARO S.A., BR
3816 1257 671 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1079 369 21 Telefonica del Peru S.A.A., PE
11664 1017 191 441 Techtel LMDS Comunicaciones Interactiva
11172 957 133 61 Alestra, S. de R.L. de C.V., MX
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 1653 393 21 LINKdotNET-AS, EG
24835 1442 501 30 RAYA-AS, EG
36992 1313 1519 263 ETISALAT-MISR, EG
36903 1199 545 114 MT-MPLS, MA
29571 947 65 59 ORANGE-COTE-IVOIRE, CI
36935 619 520 42 Vodafone-, EG
6713 611 1863 34 IAM-AS, MA
15399 512 51 33 WANANCHI-, KE
37342 467 32 1 MOVITEL, MZ
23889 423 232 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 10598 3397 561 Uninet S.A. de C.V., MX
9808 9148 8884 44 CHINAMOBILE-CN China Mobile Communicati
12479 6799 1730 150 UNI2-AS, ES
9121 6725 1692 17 TTNET, TR
16509 6403 10352 2767 AMAZON-02, US
7545 5924 789 694 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4708 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4494 298 692 CABLEONE, US
8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3952 3360 201 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9148 9104 CHINAMOBILE-CN China Mobile Communications Grou
9121 6725 6708 TTNET, TR
12479 6799 6649 UNI2-AS, ES
7545 5924 5230 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4708 4633 ERX-CERNET-BKB China Education and Research Net
8551 4009 3970 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3901 3870 VIASAT-SP-BACKBONE, US
11492 4494 3802 CABLEONE, US
20940 3952 3751 AKAMAI-ASN1, NL
39891 3751 3721 ALJAWWALSTC-AS, SA
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
65454 PRIVATE 1.9.206.0/24 4788 TMNET-AS-AP TM Net, Internet
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, 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
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
23.129.40.0/24 Origin: 6461 ZAYO-6461, US
23.129.40.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.129.56.0/24 Origin: 6461 ZAYO-6461, US
23.129.56.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.129.136.0/24 Origin: 6461 ZAYO-6461, US
23.129.136.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.8.0/24 Origin: 3257 GTT-BACKBONE GTT, US
23.131.8.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.88.0/24 Origin: 3257 GTT-BACKBONE GTT, US
23.131.88.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
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 /10:41 /11:101 /12:303
/13:591 /14:1213 /15:2063 /16:13542 /17:8311 /18:13902
/19:25186 /20:43851 /21:52191 /22:108370 /23:96015 /24:531042
/25:804 /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 5881 6725 TTNET, TR
12479 5778 6799 UNI2-AS, ES
8151 4314 10598 Uninet S.A. de C.V., MX
8551 3475 4009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3400 4494 CABLEONE, US
6327 3250 3438 SHAW, CA
39891 3067 3751 ALJAWWALSTC-AS, SA
7155 2991 3901 VIASAT-SP-BACKBONE, US
22773 2926 3920 ASN-CXA-ALL-CCI-22773-RDC, US
6849 2758 2907 UKRTELNET, UA
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1943 2:1034 3:154 4:6 5:3786 6:104
7:5 8:1566 9:1 11:172 12:1712 13:298
14:2383 15:201 16:44 17:386 18:161 20:212
21:4 22:188 23:5661 24:2292 25:6 27:2597
29:19 31:2420 32:96 34:2 35:76 36:1759
37:4372 38:2817 39:694 40:153 41:3979 42:1090
43:2181 44:287 45:16039 46:4143 47:321 49:1698
50:2156 51:100 52:1426 54:367 55:659 56:8
57:59 58:1810 59:1208 60:961 61:2257 62:2526
63:1948 64:5505 65:2315 66:4865 67:2974 68:1193
69:4159 70:1329 71:674 72:3043 74:2651 75:1390
76:584 77:2174 78:3914 79:3114 80:1990 81:1732
82:1494 83:1209 84:1366 85:3671 86:714 87:1962
88:2741 89:3288 90:521 91:7621 92:2015 93:2589
94:3492 95:4774 96:1307 97:349 98:996 99:737
100:75 101:1042 102:2056 103:28998 104:4379 105:462
106:873 107:2509 108:832 109:4243 110:2027 111:3287
112:2031 113:1550 114:1485 115:1979 116:1905 117:2513
118:2336 119:1840 120:1695 121:1073 122:2575 123:2115
124:1596 125:2125 128:1234 129:1100 130:971 131:2065
132:767 133:372 134:1902 135:290 136:880 137:850
138:2429 139:1507 140:864 141:1402 142:1291 143:1446
144:1209 145:343 146:1812 147:1493 148:2223 149:1724
150:847 151:1083 152:1853 153:459 154:3452 155:1424
156:1838 157:1232 158:1028 159:2171 160:2515 161:1273
162:3465 163:1265 164:1641 165:1601 166:716 167:1700
168:3782 169:837 170:4484 171:831 172:3177 173:3121
174:1023 175:1125 176:3515 177:4636 178:3509 179:2014
180:2281 181:2974 182:3246 183:1955 184:2388 185:19498
186:4306 187:3737 188:3867 189:3242 190:8866 191:1318
192:11009 193:8614 194:7006 195:4980 196:2985 197:2431
198:6008 199:6046 200:7499 201:5721 202:10492 203:10031
204:4553 205:3435 206:3760 207:3387 208:4042 209:4661
210:4305 211:2457 212:4040 213:3432 214:1151 215:67
216:6443 217:2664 218:1268 219:571 220:1946 221:980
222:843 223:2146
End of report
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