[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 31 18:03:22 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 01 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: 917070
Prefixes after maximum aggregation (per Origin AS): 348172
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 447686
Total ASes present in the Internet Routing Table: 74255
Prefixes per ASN: 12.35
Origin-only ASes present in the Internet Routing Table: 63714
Origin ASes announcing only one prefix: 26176
Transit ASes present in the Internet Routing Table: 10541
Transit-only ASes present in the Internet Routing Table: 443
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: 1115
Number of instances of unregistered ASNs: 1115
Number of 32-bit ASNs allocated by the RIRs: 41565
Number of 32-bit ASNs visible in the Routing Table: 34398
Prefixes from 32-bit ASNs in the Routing Table: 169231
Number of bogon 32-bit ASNs visible in the Routing Table: 60
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 497
Number of addresses announced to Internet: 3062486272
Equivalent to 182 /8s, 137 /16s and 213 /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: 306990
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 242093
Total APNIC prefixes after maximum aggregation: 69211
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 236746
Unique aggregates announced from the APNIC address blocks: 98032
APNIC Region origin ASes present in the Internet Routing Table: 13396
APNIC Prefixes per ASN: 17.67
APNIC Region origin ASes announcing only one prefix: 3933
APNIC Region transit ASes present in the Internet Routing Table: 1804
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 38
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8680
Number of APNIC addresses announced to Internet: 773780096
Equivalent to 46 /8s, 30 /16s and 242 /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: 268442
Total ARIN prefixes after maximum aggregation: 122101
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 270802
Unique aggregates announced from the ARIN address blocks: 130492
ARIN Region origin ASes present in the Internet Routing Table: 19067
ARIN Prefixes per ASN: 14.20
ARIN Region origin ASes announcing only one prefix: 6961
ARIN Region transit ASes present in the Internet Routing Table: 1962
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: 4765
Number of ARIN addresses announced to Internet: 1285972224
Equivalent to 76 /8s, 166 /16s and 97 /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: 258614
Total RIPE prefixes after maximum aggregation: 121854
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 254694
Unique aggregates announced from the RIPE address blocks: 157454
RIPE Region origin ASes present in the Internet Routing Table: 28265
RIPE Prefixes per ASN: 9.01
RIPE Region origin ASes announcing only one prefix: 12031
RIPE Region transit ASes present in the Internet Routing Table: 3962
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11107
Number of RIPE addresses announced to Internet: 717980544
Equivalent to 42 /8s, 203 /16s and 131 /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: 117628
Total LACNIC prefixes after maximum aggregation: 28474
LACNIC Deaggregation factor: 4.13
Prefixes being announced from the LACNIC address blocks: 116991
Unique aggregates announced from the LACNIC address blocks: 49097
LACNIC Region origin ASes present in the Internet Routing Table: 10970
LACNIC Prefixes per ASN: 10.66
LACNIC Region origin ASes announcing only one prefix: 2644
LACNIC Region transit ASes present in the Internet Routing Table: 2276
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: 8766
Number of LACNIC addresses announced to Internet: 176631040
Equivalent to 10 /8s, 135 /16s and 45 /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: 29178
Total AfriNIC prefixes after maximum aggregation: 5773
AfriNIC Deaggregation factor: 5.05
Prefixes being announced from the AfriNIC address blocks: 37340
Unique aggregates announced from the AfriNIC address blocks: 12210
AfriNIC Region origin ASes present in the Internet Routing Table: 1733
AfriNIC Prefixes per ASN: 21.55
AfriNIC Region origin ASes announcing only one prefix: 607
AfriNIC Region transit ASes present in the Internet Routing Table: 336
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1080
Number of AfriNIC addresses announced to Internet: 107755264
Equivalent to 6 /8s, 108 /16s and 55 /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 9506 8884 51 CHINAMOBILE-CN China Mobile Communicati
7545 5756 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4865 4192 75 ERX-CERNET-BKB China Education and Rese
7713 3532 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3437 1331 21 VIETEL-AS-AP Viettel Group, VN
45899 3381 1872 93 VNPT-AS-VN VNPT Corp, VN
9498 2903 491 237 BBIL-AP BHARTI Airtel Ltd., IN
4766 2557 11252 593 KIXS-AS-KR Korea Telecom, KR
24560 2363 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 8192 10775 2874 AMAZON-02, US
11492 4537 300 622 CABLEONE, US
7155 3963 279 46 VIASAT-SP-BACKBONE, US
22773 3621 3062 293 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3514 1320 64 SHAW, CA
16625 3163 1590 2343 AKAMAI-AS, US
749 3036 50520 2303 DNIC-AS-00749, US
396982 2626 3588 360 GOOGLE-CLOUD-PLATFORM, US
7018 2567 24117 1575 ATT-INTERNET4, US
30036 2501 360 497 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 7262 1705 149 UNI2-AS, ES
39891 4833 286 59 ALJAWWALSTC-AS, SA
20940 4060 3399 164 AKAMAI-ASN1, NL
8551 3888 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2952 2292 911 ROSTELECOM-AS, RU
9009 2672 252 1392 M247, RO
34984 2268 359 609 TELLCOM-AS, TR
6849 2173 307 18 UKRTELNET, UA
58224 1850 950 543 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 11205 3343 577 Uninet S.A. de C.V., MX
10620 3499 506 850 Telmex Colombia S.A., CO
13999 2305 368 607 Mega Cable, S.A. de C.V., MX
11830 2261 369 64 Instituto Costarricense de Electricidad
28573 1332 2325 235 Claro NXT Telecomunicacoes Ltda, BR
3816 1303 767 159 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1298 339 514 Axtel, S.A.B. de C.V., MX
6147 1131 370 22 Telefonica del Peru S.A.A., PE
11664 1101 180 451 Techtel LMDS Comunicaciones Interactiva
26615 1030 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
24835 1527 533 30 RAYA-AS, EG
24863 1524 393 19 LINKdotNET-AS, EG
36992 1341 1518 275 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1018 67 48 ORANGE-COTE-IVOIRE, CI
36935 880 520 42 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 530 54 47 WANANCHI-, KE
37342 493 32 1 MOVITEL, MZ
24757 488 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 11205 3343 577 Uninet S.A. de C.V., MX
9808 9506 8884 51 CHINAMOBILE-CN China Mobile Communicati
16509 8192 10775 2874 AMAZON-02, US
12479 7262 1705 149 UNI2-AS, ES
7545 5756 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4865 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4833 286 59 ALJAWWALSTC-AS, SA
11492 4537 300 622 CABLEONE, US
20940 4060 3399 164 AKAMAI-ASN1, NL
7155 3963 279 46 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 9506 9455 CHINAMOBILE-CN China Mobile Communications Grou
12479 7262 7113 UNI2-AS, ES
16509 8192 5318 AMAZON-02, US
7545 5756 5067 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4865 4790 ERX-CERNET-BKB China Education and Research Net
39891 4833 4774 ALJAWWALSTC-AS, SA
7155 3963 3917 VIASAT-SP-BACKBONE, US
11492 4537 3915 CABLEONE, US
20940 4060 3896 AKAMAI-ASN1, NL
8551 3888 3851 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
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
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US
396894 UNALLOCATED 8.28.201.0/24 46887 LIGHTOWER, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, 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
/13:578 /14:1198 /15:2038 /16:13473 /17:8271 /18:13864
/19:25195 /20:44276 /21:51559 /22:109685 /23:97736 /24:547997
/25:730 /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 6322 7262 UNI2-AS, ES
8151 5172 11205 Uninet S.A. de C.V., MX
39891 3632 4833 ALJAWWALSTC-AS, SA
11492 3445 4537 CABLEONE, US
8551 3360 3888 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3323 3514 SHAW, CA
7155 3038 3963 VIASAT-SP-BACKBONE, US
22773 2677 3621 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2158 2501 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2053 3499 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1705 2:1232 3:170 4:5 5:4468 6:122
7:6 8:1551 9:1 11:172 12:1575 13:391
14:2283 15:296 16:137 17:372 18:413 20:248
21:4 22:188 23:6169 24:2576 25:6 27:2489
29:19 31:2513 32:97 34:10 35:107 36:1914
37:4664 38:4398 39:805 40:151 41:3965 42:988
43:2345 44:310 45:16559 46:4248 47:375 49:1751
50:1835 51:564 52:1594 54:389 55:763 56:8
57:90 58:1752 59:1123 60:978 61:2450 62:2642
63:1932 64:5672 65:2317 66:4921 67:3016 68:1373
69:4151 70:1253 71:669 72:2972 74:2604 75:1462
76:613 77:2430 78:1863 79:3166 80:2092 81:1741
82:1502 83:1276 84:1531 85:3007 86:754 87:1987
88:1247 89:3630 90:616 91:7684 92:2043 93:2583
94:3599 95:3999 96:1328 97:336 98:1158 99:746
100:73 101:1067 102:2638 103:31154 104:4621 105:483
106:907 107:2551 108:1006 109:4387 110:2082 111:3200
112:2058 113:1563 114:1630 115:2023 116:1924 117:2552
118:2285 119:1980 120:1778 121:1112 122:2603 123:2183
124:1617 125:2530 128:1316 129:1070 130:1005 131:1997
132:791 133:423 134:1905 135:301 136:872 137:941
138:2556 139:1541 140:1222 141:1448 142:1442 143:1496
144:1166 145:350 146:1934 147:1569 148:2337 149:1965
150:871 151:1153 152:1844 153:488 154:4295 155:1418
156:1708 157:1293 158:1047 159:2269 160:2544 161:1517
162:3536 163:1505 164:1604 165:1707 166:916 167:1715
168:3903 169:936 170:4622 171:877 172:3536 173:2946
174:1018 175:1159 176:3684 177:4622 178:3636 179:2165
180:2406 181:3431 182:3368 183:1929 184:2352 185:20135
186:4660 187:3944 188:4106 189:3574 190:9163 191:1435
192:10933 193:8845 194:7312 195:5170 196:3091 197:2410
198:5962 199:6080 200:7887 201:5862 202:10750 203:10207
204:4627 205:3549 206:3963 207:3450 208:4092 209:4894
210:4439 211:2497 212:4105 213:3541 214:1084 215:60
216:6618 217:2681 218:1294 219:581 220:2016 221:975
222:889 223:2183
End of report
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