[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 14 18:02:24 UTC 2025
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
UKNOF, 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 15 Mar, 2025
IPv4 BGP Table (Global) as seen at Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 978380
Prefixes after maximum aggregation (per Origin AS): 374690
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 476459
Number of IPv4 prefixes with a valid ROA: 525877
Number of IPv4 prefixes with an invalid ROA: 4178
Number of IPv4 prefixes with no ROA: 448325
Total ASes present in the Internet Routing Table: 76723
Prefixes per ASN: 12.75
Origin-only ASes present in the Internet Routing Table: 65699
Origin ASes announcing only one prefix: 26862
Transit ASes present in the Internet Routing Table: 11024
Transit-only ASes present in the Internet Routing Table: 549
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 204
Max AS path prepend of ASN (273039) 200
Prefixes from unregistered ASNs in the Routing Table: 1042
Number of instances of unregistered ASNs: 1049
Number of 32-bit ASNs allocated by the RIRs: 46120
Number of 32-bit ASNs visible in the Routing Table: 37981
Prefixes from 32-bit ASNs in the Routing Table: 199874
Number of bogon 32-bit ASNs visible in the Routing Table: 36
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 522
Number of addresses announced to Internet: 3111505920
Equivalent to 185 /8s, 117 /16s and 208 /24s
Percentage of available address space announced: 84.0
Percentage of allocated address space announced: 84.0
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: 320978
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 256691
Total APNIC prefixes after maximum aggregation: 76803
APNIC Deaggregation factor: 3.34
Prefixes being announced from the APNIC address blocks: 248476
Unique aggregates announced from the APNIC address blocks: 102800
APNIC Region origin ASes present in the Internet Routing Table: 14573
APNIC Prefixes per ASN: 17.05
APNIC Region origin ASes announcing only one prefix: 4436
APNIC Region transit ASes present in the Internet Routing Table: 1964
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 40
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10051
Number of APNIC addresses announced to Internet: 750059264
Equivalent to 44 /8s, 180 /16s and 255 /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, 131072-155961
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: 289432
Total ARIN prefixes after maximum aggregation: 128574
ARIN Deaggregation factor: 2.25
Prefixes being announced from the ARIN address blocks: 290289
Unique aggregates announced from the ARIN address blocks: 136595
ARIN Region origin ASes present in the Internet Routing Table: 19226
ARIN Prefixes per ASN: 15.10
ARIN Region origin ASes announcing only one prefix: 7010
ARIN Region transit ASes present in the Internet Routing Table: 1999
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5167
Number of ARIN addresses announced to Internet: 1352586752
Equivalent to 80 /8s, 158 /16s and 214 /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, 393216-402332
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, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 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: 272587
Total RIPE prefixes after maximum aggregation: 132612
RIPE Deaggregation factor: 2.06
Prefixes being announced from the RIPE address blocks: 270589
Unique aggregates announced from the RIPE address blocks: 173300
RIPE Region origin ASes present in the Internet Routing Table: 28881
RIPE Prefixes per ASN: 9.37
RIPE Region origin ASes announcing only one prefix: 12067
RIPE Region transit ASes present in the Internet Routing Table: 3991
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 45
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12328
Number of RIPE addresses announced to Internet: 732229888
Equivalent to 43 /8s, 164 /16s and 241 /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
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 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: 123613
Total LACNIC prefixes after maximum aggregation: 29262
LACNIC Deaggregation factor: 4.22
Prefixes being announced from the LACNIC address blocks: 120385
Unique aggregates announced from the LACNIC address blocks: 48823
LACNIC Region origin ASes present in the Internet Routing Table: 11202
LACNIC Prefixes per ASN: 10.75
LACNIC Region origin ASes announcing only one prefix: 2659
LACNIC Region transit ASes present in the Internet Routing Table: 2490
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 204
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9166
Number of LACNIC addresses announced to Internet: 171491072
Equivalent to 10 /8s, 56 /16s and 191 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 35015
Total AfriNIC prefixes after maximum aggregation: 6796
AfriNIC Deaggregation factor: 5.15
Prefixes being announced from the AfriNIC address blocks: 48119
Unique aggregates announced from the AfriNIC address blocks: 14512
AfriNIC Region origin ASes present in the Internet Routing Table: 1906
AfriNIC Prefixes per ASN: 25.25
AfriNIC Region origin ASes announcing only one prefix: 690
AfriNIC Region transit ASes present in the Internet Routing Table: 382
Average AfriNIC Region AS path length visible: 6.0
Max AfriNIC Region AS path length visible: 65
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1269
Number of AfriNIC addresses announced to Internet: 104886528
Equivalent to 6 /8s, 64 /16s and 113 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 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 10331 8754 93 CHINAMOBILE-CN China Mobile Communication
7545 6211 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4769 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4258 530 277 BBIL-AP BHARTI Airtel Ltd., IN
7552 3911 1332 26 VIETEL-AS-AP Viettel Group, VN
7713 3676 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3282 1869 102 VNPT-AS-VN VNPT Corp, VN
24560 2841 847 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2348 11520 602 KIXS-AS-KR Korea Telecom, KR
45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer
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 12938 39643 3960 AMAZON-02, US
11492 4675 310 585 CABLEONE, US
7155 4174 286 83 VIASAT-SP-BACKBONE, US
6327 3622 1320 81 SHAW, CA
174 3605 8765 949 COGENT-174, US
22773 3378 3033 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3259 54879 2506 DNIC-AS-00749, US
16625 2984 1257 2187 AKAMAI-AS, US
396982 2944 3660 457 GOOGLE-CLOUD-PLATFORM, US
30036 2545 350 417 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 7753 1714 145 UNI2-AS, ES
39891 4797 293 62 ALJAWWALSTC-AS, SA
20940 3933 3395 130 AKAMAI-ASN1, NL
9009 3758 322 1940 M247, RO
12389 3006 2303 891 ROSTELECOM-AS, RU
34984 2370 361 582 TELLCOM-AS, TR
212238 2042 147 1507 CDNEXT, GB
8452 1607 1852 14 TE-AS TE-AS, EG
13188 1606 100 34 TRIOLAN, UA
62240 1485 98 744 CLOUVIDER Clouvider - Global ASN, GB
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 11812 3241 582 UNINET, MX
10620 3524 487 971 Telmex Colombia S.A., CO
13999 2506 539 368 Mega Cable, S.A. de C.V., MX
11830 1992 369 64 Instituto Costarricense de Electricidad y
28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR
3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1193 371 22 Telefonica del Peru S.A.A., PE
11664 1156 278 33 Techtel LMDS Comunicaciones Interactivas
6503 1092 359 174 Axtel, S.A.B. de C.V., MX
22884 1049 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
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 1683 599 30 RAYA-AS, EG
24863 1619 389 16 LINKdotNET-AS, EG
29571 1576 104 71 ORANGE-COTE-IVOIRE, CI
36992 1426 1518 286 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
36935 1006 521 42 Vodafone-, EG
20011 980 183 284 INTERNET-SOLUTIONS, ZA
37069 855 1083 15 MOBINIL, EG
6713 560 1861 35 IAM-AS, MA
36914 547 82 3 KENET-AS, KE
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
16509 12938 39643 3960 AMAZON-02, US
8151 11812 3241 582 UNINET, MX
9808 10331 8754 93 CHINAMOBILE-CN China Mobile Communication
12479 7753 1714 145 UNI2-AS, ES
7545 6211 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 293 62 ALJAWWALSTC-AS, SA
4538 4769 4192 76 ERX-CERNET-BKB China Education and Resear
11492 4675 310 585 CABLEONE, US
9498 4258 530 277 BBIL-AP BHARTI Airtel Ltd., IN
7155 4174 286 83 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
8151 11812 11230 UNINET, MX
9808 10331 10238 CHINAMOBILE-CN China Mobile Communications Grou
12479 7753 7608 UNI2-AS, ES
7545 6211 5553 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 4735 ALJAWWALSTC-AS, SA
4538 4769 4693 ERX-CERNET-BKB China Education and Research Net
7155 4174 4091 VIASAT-SP-BACKBONE, US
11492 4675 4090 CABLEONE, US
9498 4258 3981 BBIL-AP BHARTI Airtel Ltd., IN
7552 3911 3885 VIETEL-AS-AP Viettel Group, VN
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
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.38.73.0/24 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
14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US
14.192.20.0/22 Transit: 6939 HURRICANE, US
23.138.40.0/22 Origin: 964 IONSWITCH-NW, US
23.138.40.0/22 Transit: 20055 AS-WHOLESAIL, US
23.138.41.0/24 Origin: 964 IONSWITCH-NW, US
23.138.41.0/24 Transit: 20055 AS-WHOLESAIL, US
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, 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 /9:16 /10:42 /11:92 /12:304
/13:584 /14:1215 /15:2147 /16:13976 /17:8356 /18:13820
/19:24796 /20:44594 /21:52229 /22:112363 /23:101334 /24:601787
/25:709 /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 6691 7753 UNI2-AS, ES
8151 6018 11812 UNINET, MX
11492 3528 4675 CABLEONE, US
39891 3489 4797 ALJAWWALSTC-AS, SA
6327 3417 3622 SHAW, CA
7155 3121 4174 VIASAT-SP-BACKBONE, US
22773 2517 3378 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2342 12938 AMAZON-02, US
30036 2206 2545 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2185 3524 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1693 2:1513 3:594 4:10 5:4543 6:162
7:6 8:1555 9:1 11:172 12:1375 13:348
14:2546 15:349 16:279 17:364 18:921 20:462
21:4 22:188 23:7320 24:3022 25:2 27:2668
29:19 31:3201 32:38 34:79 35:203 36:2414
37:4614 38:8967 39:899 40:155 41:4244 42:929
43:2537 44:355 45:18447 46:5021 47:290 49:1994
50:1890 51:591 52:1555 54:301 55:1071 56:9
57:244 58:2120 59:1300 60:1166 61:2792 62:2902
63:1833 64:5492 65:2163 66:4619 67:3010 68:1117
69:3946 70:1110 71:615 72:2865 74:2788 75:1654
76:616 77:2694 78:1856 79:1732 80:2208 81:2011
82:2790 83:1397 84:1814 85:3363 86:1036 87:2411
88:1281 89:4331 90:783 91:8318 92:2787 93:2892
94:3915 95:4248 96:1414 97:313 98:985 99:738
100:71 101:1158 102:3652 103:32244 104:4820 105:736
106:1000 107:2599 108:1210 109:4119 110:2233 111:3336
112:2040 113:1522 114:1941 115:2091 116:2045 117:2753
118:2424 119:1930 120:1895 121:1414 122:2753 123:2173
124:1616 125:2902 126:88 128:1553 129:968 130:1274
131:1858 132:786 133:451 134:1530 135:330 136:1284
137:1160 138:2887 139:1611 140:1561 141:1471 142:1825
143:1639 144:1065 145:479 146:2158 147:2089 148:2601
149:2886 150:1242 151:2118 152:2107 153:504 154:7846
155:1622 156:3300 157:1904 158:1269 159:2430 160:3528
161:1937 162:3678 163:1887 164:1700 165:2189 166:1400
167:1880 168:4083 169:788 170:5094 171:1001 172:4443
173:3223 174:912 175:1262 176:3682 177:4777 178:3812
179:2320 180:2576 181:4037 182:3371 183:1829 184:2296
185:21488 186:5075 187:4392 188:4214 189:4188 190:9625
191:1488 192:11172 193:9419 194:7767 195:5535 196:3258
197:3654 198:6204 199:8385 200:8186 201:6308 202:10588
203:10521 204:4529 205:3666 206:4604 207:3562 208:4177
209:5198 210:4804 211:2635 212:4518 213:3730 214:1054
215:42 216:6582 217:3088 218:1380 219:536 220:2105
221:1053 222:850 223:2340
End of report
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