[REN-BGP-stats-all] IPv4 R&E Routing Table Report - PREGINET (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Apr 3 20:31:54 UTC 2025
IPv4 R&E Routing Table Report 20:30 GMT Thu 03 Apr, 2025
IPv4 BGP Table (R&E) as seen at PREGINET.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/PREGINET/
Analysis Summary
----------------
BGP routing table entries examined: 158490
Prefixes after maximum aggregation (per Origin AS): 64156
Deaggregation factor: 2.47
Unique aggregates announced (without unneeded subnets): 91084
Number of IPv4 prefixes with a valid ROA: 86201
Number of IPv4 prefixes with an invalid ROA: 62
Number of IPv4 prefixes with no ROA: 72227
Total ASes present in the Internet Routing Table: 14831
Prefixes per ASN: 10.69
Origin-only ASes present in the Internet Routing Table: 12538
Origin ASes announcing only one prefix: 6011
Transit ASes present in the Internet Routing Table: 2293
Transit-only ASes present in the Internet Routing Table: 519
Paths with bogon ASNs present in the IPv4 Routing Table: 4
Average AS path length visible in the Internet Routing Table: 6.7
Max AS path length visible: 45
Max AS path prepend of ASN (212940) 40
Prefixes from unregistered ASNs in the Routing Table: 82
Number of instances of unregistered ASNs: 85
Number of 32-bit ASNs allocated by the RIRs: 46145
Number of 32-bit ASNs visible in the Routing Table: 7369
Prefixes from 32-bit ASNs in the Routing Table: 30119
Number of bogon 32-bit ASNs visible in the Routing Table: 8
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 53
Number of addresses announced to Internet: 510048000
Equivalent to 30 /8s, 102 /16s and 183 /24s
Percentage of available address space announced: 13.8
Percentage of allocated address space announced: 13.8
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: 38901
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 77313
Total APNIC prefixes after maximum aggregation: 25595
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 75502
Unique aggregates announced from the APNIC address blocks: 36999
APNIC Region origin ASes present in the Internet Routing Table: 5064
APNIC Prefixes per ASN: 14.91
APNIC Region origin ASes announcing only one prefix: 1882
APNIC Region transit ASes present in the Internet Routing Table: 735
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 36
Number of APNIC region 32-bit ASNs visible in the Routing Table: 3261
Number of APNIC addresses announced to Internet: 189096704
Equivalent to 11 /8s, 69 /16s and 99 /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: 27228
Total ARIN prefixes after maximum aggregation: 14884
ARIN Deaggregation factor: 1.83
Prefixes being announced from the ARIN address blocks: 26889
Unique aggregates announced from the ARIN address blocks: 20819
ARIN Region origin ASes present in the Internet Routing Table: 2163
ARIN Prefixes per ASN: 12.43
ARIN Region origin ASes announcing only one prefix: 1021
ARIN Region transit ASes present in the Internet Routing Table: 232
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 479
Number of ARIN addresses announced to Internet: 171504896
Equivalent to 10 /8s, 56 /16s and 245 /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: 39580
Total RIPE prefixes after maximum aggregation: 18804
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 40361
Unique aggregates announced from the RIPE address blocks: 25507
RIPE Region origin ASes present in the Internet Routing Table: 4671
RIPE Prefixes per ASN: 8.64
RIPE Region origin ASes announcing only one prefix: 2130
RIPE Region transit ASes present in the Internet Routing Table: 692
Average RIPE Region AS path length visible: 6.2
Max RIPE Region AS path length visible: 45
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1639
Number of RIPE addresses announced to Internet: 124755968
Equivalent to 7 /8s, 111 /16s and 160 /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: 12442
Total LACNIC prefixes after maximum aggregation: 4414
LACNIC Deaggregation factor: 2.82
Prefixes being announced from the LACNIC address blocks: 11930
Unique aggregates announced from the LACNIC address blocks: 5823
LACNIC Region origin ASes present in the Internet Routing Table: 2263
LACNIC Prefixes per ASN: 5.27
LACNIC Region origin ASes announcing only one prefix: 930
LACNIC Region transit ASes present in the Internet Routing Table: 487
Average LACNIC Region AS path length visible: 7.6
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1917
Number of LACNIC addresses announced to Internet: 18375424
Equivalent to 1 /8s, 24 /16s and 99 /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: 1845
Total AfriNIC prefixes after maximum aggregation: 400
AfriNIC Deaggregation factor: 4.61
Prefixes being announced from the AfriNIC address blocks: 3755
Unique aggregates announced from the AfriNIC address blocks: 1901
AfriNIC Region origin ASes present in the Internet Routing Table: 128
AfriNIC Prefixes per ASN: 29.34
AfriNIC Region origin ASes announcing only one prefix: 48
AfriNIC Region transit ASes present in the Internet Routing Table: 41
Average AfriNIC Region AS path length visible: 7.6
Max AfriNIC Region AS path length visible: 40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 73
Number of AfriNIC addresses announced to Internet: 6283008
Equivalent to 0 /8s, 95 /16s and 223 /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 10133 8753 88 CHINAMOBILE-CN China Mobile Communication
9498 4157 497 265 BBIL-AP BHARTI Airtel Ltd., IN
24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2017 6035 941 KIXS-AS-KR Korea Telecom, KR
45609 1835 824 326 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd.
7552 1763 689 528 VIETEL-AS-AP Viettel Group, VN
56046 1592 812 181 CMNET-JIANGSU-AP China Mobile communicati
56041 1547 725 74 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1480 192 53 CMNET-HUNAN-AP China Mobile communication
9919 967 170 64 NCIC-TW New Century InfoComm Tech Co., Lt
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
30036 2385 331 692 MEDIACOM-ENTERPRISE-BUSINESS, US
20115 2230 3096 505 CHARTER-20115, US
16509 2204 3549 1264 AMAZON-02, US
11492 1880 130 1027 CABLEONE, US
714 1206 4391 8 APPLE-ENGINEERING, US
8075 735 16019 620 MICROSOFT-CORP-MSN-AS-BLOCK, US
10796 640 1944 302 TWC-10796-MIDWEST, US
12083 440 191 84 WOW-INTERNET, US
2152 387 40 263 CENIC-2152, US
33363 384 1416 211 BHN-33363, US
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 4179 255 52 ALJAWWALSTC-AS, SA
12389 2309 1997 789 ROSTELECOM-AS, RU
25019 898 638 320 SAUDINETSTC-AS, SA
49505 856 92 355 SELECTEL, RU
50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM
9123 597 37 262 TIMEWEB-AS, RU
9155 426 37 9 QNET Kuwait, KW
42772 373 63 104 A1-BY-AS, BY
50340 347 34 227 SELECTEL-MSK, RU
209242 342 31 307 CLOUDFLARESPECTRUM Cloudflare, Inc., US
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1900 689 251 UNINET, MX
7738 605 1807 67 V tal, BR
8167 342 1089 44 V tal, BR
1916 235 177 40 Rede Nacional de Ensino e Pesquisa, BR
28201 218 16 28 Companhia Itabirana Telecomunicacoes Ltda
28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M
271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
11014 128 10 26 CPS, AR
11340 110 25 52 Red Universitaria Nacional, CL
19089 107 18 45 Scala Data Centers, BR
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 553 82 3 KENET-AS, KE
2018 374 318 69 TENET-1, ZA
15399 226 47 20 WANANCHI-, KE
36873 198 83 30 VNL1-AS, NG
23889 49 27 29 MauritiusTelecom, MU
8094 47 48 18 PUKNET, ZA
37215 34 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37531 19 2 15 AIRTEL-NIGER, NE
327885 17 4 2 Viettel-Tanzania, TZ
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
9808 10133 8753 88 CHINAMOBILE-CN China Mobile Communication
39891 4179 255 52 ALJAWWALSTC-AS, SA
9498 4157 497 265 BBIL-AP BHARTI Airtel Ltd., IN
24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
30036 2385 331 692 MEDIACOM-ENTERPRISE-BUSINESS, US
12389 2309 1997 789 ROSTELECOM-AS, RU
20115 2230 3096 505 CHARTER-20115, US
16509 2204 3549 1264 AMAZON-02, US
4766 2017 6035 941 KIXS-AS-KR Korea Telecom, KR
8151 1900 689 251 UNINET, MX
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
39891 4179 4127 ALJAWWALSTC-AS, SA
9498 4157 3892 BBIL-AP BHARTI Airtel Ltd., IN
24560 2847 2311 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem
20115 2230 1725 CHARTER-20115, US
30036 2385 1693 MEDIACOM-ENTERPRISE-BUSINESS, US
8151 1900 1649 UNINET, MX
12389 2309 1520 ROSTELECOM-AS, RU
45609 1835 1509 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for
56041 1547 1473 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1480 1427 CMNET-HUNAN-AP China Mobile communications corp
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI
393377 UNALLOCATED 12.195.116.0/24 40264 TWC-40264-WI-MN-UPPERMI
202528 UNALLOCATED 23.143.136.0/24 153371 BACKWAVESLIMITED-AS-AP
46123 UNALLOCATED 24.73.234.0/24 33363 BHN-33363, US
53771 UNALLOCATED 24.172.253.0/24 11426 TWC-11426-CAROLINAS, US
53657 UNALLOCATED 24.213.247.0/24 11351 TWC-11351-NORTHEAST, US
11835 UNALLOCATED 45.4.236.0/22 14868 Ligga Telecomunicacoes
40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US
396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US
26345 UNALLOCATED 71.13.182.0/24 20115 CHARTER-20115, US
Complete listing at https://bgp.nsrc.org/REN/PREGINET/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://bgp.nsrc.org/REN/PREGINET/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.161.8.0/24 Origin: 142433 DATAWAVE-AS-AP DATAWAVE GLOBAL LLC, CN
23.161.8.0/24 Transit: 983 AKARI-NETWORKS, US
102.219.4.0/22 Origin: 328932 RESERVED, ZZ
102.219.4.0/22 Transit: 36873 VNL1-AS, NG
103.5.136.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP
103.5.136.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP
103.6.224.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP
103.6.224.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP
103.8.106.0/24 Origin: 135391 AOFEI-HK AOFEI DATA INTERNATIONAL COMPAN
103.8.106.0/24 Transit: 55888 NINTATSU Nintatsu Global Telecommunicati
Complete listing at https://bgp.nsrc.org/REN/PREGINET/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 /8:1 /9:2 /10:13 /11:13 /12:48
/13:81 /14:161 /15:397 /16:2525 /17:1341 /18:2806
/19:4447 /20:7589 /21:9206 /22:17000 /23:16451 /24:96408
/25:1 /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
39891 3321 4179 ALJAWWALSTC-AS, SA
30036 2070 2385 MEDIACOM-ENTERPRISE-BUSINESS, US
12389 1406 2309 ROSTELECOM-AS, RU
11492 1314 1880 CABLEONE, US
8151 1038 1900 UNINET, MX
49505 592 856 SELECTEL, RU
50010 552 665 NAWRAS-AS Sultanate of Oman, OM
20115 545 2230 CHARTER-20115, US
36914 529 553 KENET-AS, KE
16509 487 2204 AMAZON-02, US
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:196 2:328 3:100 5:1069 6:4 8:61
12:82 13:87 14:380 15:58 16:63 17:312
18:71 20:28 23:720 24:498 25:2 27:595
31:526 32:2 34:3 35:38 36:1347 37:623
38:556 39:692 40:1 41:262 42:143 43:663
44:22 45:2518 46:778 47:63 49:198 50:320
51:138 52:257 54:41 57:28 58:300 59:451
60:95 61:807 62:565 63:129 64:384 65:289
66:302 67:303 68:69 69:253 70:34 71:80
72:246 74:199 75:64 76:57 77:489 78:454
79:232 80:235 81:353 82:382 83:181 84:179
85:365 86:141 87:299 88:111 89:495 90:132
91:1381 92:412 93:925 94:765 95:1454 96:264
97:145 98:72 99:47 101:465 102:143 103:8138
104:374 105:170 106:292 107:115 108:143 109:436
110:230 111:2095 112:919 113:316 114:843 115:302
116:394 117:1351 118:360 119:281 120:1227 121:417
122:1729 123:456 124:330 125:1568 126:3 128:401
129:61 130:126 131:220 132:45 133:304 134:166
135:23 136:79 137:163 138:313 139:226 140:317
141:193 142:80 143:166 144:115 145:133 146:376
147:258 148:358 149:232 150:268 151:488 152:465
153:37 154:943 155:197 156:478 157:288 158:131
159:391 160:661 161:152 162:270 163:306 164:145
165:224 166:58 167:195 168:343 169:80 170:495
171:162 172:215 173:966 174:117 175:563 176:723
177:558 178:674 179:226 180:491 181:156 182:1579
183:1057 184:140 185:2253 186:206 187:470 188:624
189:292 190:461 191:86 192:1865 193:1119 194:914
195:769 196:293 197:445 198:767 199:584 200:764
201:548 202:2455 203:2181 204:293 205:276 206:308
207:320 208:238 209:321 210:1471 211:1144 212:788
213:534 214:10 216:376 217:551 218:800 219:64
220:570 221:354 222:135 223:1052
End of report
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