[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Apr 15 18:02:44 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 16 Apr, 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: 896801
Prefixes after maximum aggregation (per Origin AS): 337333
Deaggregation factor: 2.66
Unique aggregates announced (without unneeded subnets): 429950
Total ASes present in the Internet Routing Table: 73005
Prefixes per ASN: 12.28
Origin-only ASes present in the Internet Routing Table: 62657
Origin ASes announcing only one prefix: 25706
Transit ASes present in the Internet Routing Table: 10348
Transit-only ASes present in the Internet Routing Table: 372
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 65
Max AS path prepend of ASN (267602) 58
Prefixes from unregistered ASNs in the Routing Table: 1047
Number of instances of unregistered ASNs: 1053
Number of 32-bit ASNs allocated by the RIRs: 39109
Number of 32-bit ASNs visible in the Routing Table: 32469
Prefixes from 32-bit ASNs in the Routing Table: 152871
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: 668
Number of addresses announced to Internet: 3067665792
Equivalent to 182 /8s, 216 /16s and 221 /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: 303952
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 235767
Total APNIC prefixes after maximum aggregation: 66532
APNIC Deaggregation factor: 3.54
Prefixes being announced from the APNIC address blocks: 230569
Unique aggregates announced from the APNIC address blocks: 94543
APNIC Region origin ASes present in the Internet Routing Table: 12548
APNIC Prefixes per ASN: 18.37
APNIC Region origin ASes announcing only one prefix: 3569
APNIC Region transit ASes present in the Internet Routing Table: 1725
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7750
Number of APNIC addresses announced to Internet: 774131456
Equivalent to 46 /8s, 36 /16s and 79 /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: 260766
Total ARIN prefixes after maximum aggregation: 119680
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 260793
Unique aggregates announced from the ARIN address blocks: 124356
ARIN Region origin ASes present in the Internet Routing Table: 18991
ARIN Prefixes per ASN: 13.73
ARIN Region origin ASes announcing only one prefix: 6886
ARIN Region transit ASes present in the Internet Routing Table: 1949
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 37
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4439
Number of ARIN addresses announced to Internet: 1295176960
Equivalent to 77 /8s, 50 /16s and 213 /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: 256871
Total RIPE prefixes after maximum aggregation: 117354
RIPE Deaggregation factor: 2.19
Prefixes being announced from the RIPE address blocks: 254279
Unique aggregates announced from the RIPE address blocks: 150463
RIPE Region origin ASes present in the Internet Routing Table: 28122
RIPE Prefixes per ASN: 9.04
RIPE Region origin ASes announcing only one prefix: 12044
RIPE Region transit ASes present in the Internet Routing Table: 3978
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10674
Number of RIPE addresses announced to Internet: 714141824
Equivalent to 42 /8s, 144 /16s and 240 /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: 114644
Total LACNIC prefixes after maximum aggregation: 27585
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 114546
Unique aggregates announced from the LACNIC address blocks: 48315
LACNIC Region origin ASes present in the Internet Routing Table: 10952
LACNIC Prefixes per ASN: 10.46
LACNIC Region origin ASes announcing only one prefix: 2641
LACNIC Region transit ASes present in the Internet Routing Table: 2199
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 65
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8647
Number of LACNIC addresses announced to Internet: 176352512
Equivalent to 10 /8s, 130 /16s and 237 /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: 27706
Total AfriNIC prefixes after maximum aggregation: 5457
AfriNIC Deaggregation factor: 5.08
Prefixes being announced from the AfriNIC address blocks: 35946
Unique aggregates announced from the AfriNIC address blocks: 11730
AfriNIC Region origin ASes present in the Internet Routing Table: 1627
AfriNIC Prefixes per ASN: 22.09
AfriNIC Region origin ASes announcing only one prefix: 566
AfriNIC Region transit ASes present in the Internet Routing Table: 331
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: 959
Number of AfriNIC addresses announced to Internet: 107402240
Equivalent to 6 /8s, 102 /16s and 212 /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 9229 8884 44 CHINAMOBILE-CN China Mobile Communicati
7545 5911 789 699 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4722 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3607 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3500 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3426 1880 56 VNPT-AS-VN VNPT Corp, VN
4766 2497 11121 601 KIXS-AS-KR Korea Telecom, KR
9498 2395 491 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2165 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2115 429 197 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 6216 10270 2693 AMAZON-02, US
11492 4473 297 692 CABLEONE, US
22773 3937 3076 365 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3900 264 31 VIASAT-SP-BACKBONE, US
16625 3621 1856 2555 AKAMAI-AS, US
6327 3431 1318 62 SHAW, CA
749 2882 50780 2138 DNIC-AS-00749, US
30036 2616 374 118 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2521 4962 423 CENTURYLINK-US-LEGACY-QWEST, US
20115 2255 3042 494 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 6823 1730 149 UNI2-AS, ES
9121 6719 1692 17 TTNET, TR
8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3928 3360 201 AKAMAI-ASN1, NL
39891 3751 216 33 ALJAWWALSTC-AS, SA
12389 2954 2274 909 ROSTELECOM-AS, RU
6849 2762 355 21 UKRTELNET, UA
9009 2463 245 1275 M247, GB
34984 2236 357 633 TELLCOM-AS, TR
47331 2084 328 1595 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 10546 3392 559 Uninet S.A. de C.V., MX
10620 3466 518 753 Telmex Colombia S.A., CO
11830 2430 369 63 Instituto Costarricense de Electricidad
13999 1735 294 473 Mega Cable, S.A. de C.V., MX
6503 1452 354 523 Axtel, S.A.B. de C.V., MX
28573 1397 2333 253 CLARO S.A., BR
3816 1255 667 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1084 369 21 Telefonica del Peru S.A.A., PE
11664 1009 193 449 Techtel LMDS Comunicaciones Interactiva
11172 960 133 63 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 1645 393 21 LINKdotNET-AS, EG
24835 1473 523 33 RAYA-AS, EG
36992 1314 1519 263 ETISALAT-MISR, EG
36903 1199 545 114 MT-MPLS, MA
29571 902 65 59 ORANGE-COTE-IVOIRE, CI
36935 771 520 42 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 520 51 35 WANANCHI-, KE
37342 468 32 1 MOVITEL, MZ
23889 424 232 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 10546 3392 559 Uninet S.A. de C.V., MX
9808 9229 8884 44 CHINAMOBILE-CN China Mobile Communicati
12479 6823 1730 149 UNI2-AS, ES
9121 6719 1692 17 TTNET, TR
16509 6216 10270 2693 AMAZON-02, US
7545 5911 789 699 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4722 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4473 297 692 CABLEONE, US
8551 4009 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
22773 3937 3076 365 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 9229 9185 CHINAMOBILE-CN China Mobile Communications Grou
9121 6719 6702 TTNET, TR
12479 6823 6674 UNI2-AS, ES
7545 5911 5212 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4722 4647 ERX-CERNET-BKB China Education and Research Net
8551 4009 3970 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3900 3869 VIASAT-SP-BACKBONE, US
11492 4473 3781 CABLEONE, US
20940 3928 3727 AKAMAI-ASN1, NL
39891 3751 3718 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
398083 UNALLOCATED 5.133.124.0/24 399587 UT, US
19397 UNALLOCATED 8.5.244.0/24 3257 GTT-BACKBONE GTT, US
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
19397 UNALLOCATED 8.15.12.0/24 7843 TWC-7843-BB, 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
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
27.100.7.0/24 Origin: 56096 UNASSIGNED
27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
41.57.124.0/22 Origin: 37442 UNASSIGNED
41.57.124.0/22 Transit: 37204 TELONE, ZW
41.57.124.0/23 Origin: 37442 UNASSIGNED
41.57.124.0/23 Transit: 37204 TELONE, ZW
41.57.124.0/24 Origin: 37442 UNASSIGNED
41.57.124.0/24 Transit: 37204 TELONE, ZW
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 /11:100 /12:303
/13:590 /14:1209 /15:2058 /16:13532 /17:8247 /18:13900
/19:25181 /20:43713 /21:52350 /22:108483 /23:95912 /24:530324
/25:830 /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 5874 6719 TTNET, TR
12479 5801 6823 UNI2-AS, ES
8151 4204 10546 Uninet S.A. de C.V., MX
8551 3475 4009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3379 4473 CABLEONE, US
6327 3243 3431 SHAW, CA
39891 3067 3751 ALJAWWALSTC-AS, SA
7155 2990 3900 VIASAT-SP-BACKBONE, US
22773 2936 3937 ASN-CXA-ALL-CCI-22773-RDC, US
6849 2624 2762 UKRTELNET, UA
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1941 2:1035 3:154 4:7 5:3800 6:103
7:5 8:1561 9:1 11:172 12:1708 13:293
14:2388 15:192 16:45 17:381 18:156 20:194
21:4 22:188 23:5618 24:2294 25:4 27:2593
29:19 31:2423 32:96 34:1 35:74 36:1755
37:4414 38:2776 39:731 40:153 41:3944 42:1073
43:2183 44:289 45:16088 46:4135 47:337 49:1675
50:1934 51:100 52:1410 53:1 54:363 55:708
56:8 57:58 58:1804 59:1203 60:957 61:2267
62:2487 63:1957 64:5511 65:2303 66:4854 67:2976
68:1181 69:4156 70:1339 71:658 72:3051 74:2666
75:1388 76:589 77:2168 78:3902 79:3113 80:1984
81:1750 82:1483 83:1201 84:1363 85:3649 86:708
87:1964 88:2726 89:3267 90:524 91:7621 92:1989
93:2595 94:3480 95:4775 96:1298 97:348 98:988
99:739 100:74 101:1040 102:2028 103:29058 104:4371
105:466 106:857 107:2540 108:830 109:4228 110:2071
111:3306 112:2031 113:1530 114:1488 115:1960 116:1909
117:2539 118:2328 119:1866 120:1698 121:1066 122:2567
123:2125 124:1593 125:2116 128:1222 129:1225 130:967
131:2055 132:768 133:373 134:1930 135:289 136:883
137:874 138:2441 139:1495 140:858 141:1400 142:1296
143:1474 144:1244 145:342 146:1803 147:1498 148:2226
149:1667 150:862 151:1083 152:1844 153:458 154:3538
155:1440 156:1874 157:1222 158:1033 159:2085 160:2467
161:1318 162:3454 163:1250 164:1630 165:1609 166:708
167:1712 168:3803 169:708 170:4460 171:830 172:3142
173:3093 174:1021 175:1127 176:3516 177:4641 178:3417
179:2018 180:2284 181:2951 182:3243 183:1953 184:2385
185:19471 186:4376 187:3654 188:3879 189:3189 190:8887
191:1321 192:10993 193:8603 194:6961 195:4953 196:2952
197:2399 198:6041 199:6040 200:7505 201:5684 202:10498
203:10035 204:4566 205:3382 206:3769 207:3410 208:4060
209:4674 210:4265 211:2453 212:4018 213:3420 214:1159
215:67 216:6446 217:2671 218:1272 219:572 220:1946
221:979 222:843 223:2150
End of report
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