[REN-BGP-stats-all] IPv4 R&E Routing Table Report - PREGINET (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Mar 25 20:31:52 UTC 2025
IPv4 R&E Routing Table Report 20:30 GMT Tue 25 Mar, 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: 157918
Prefixes after maximum aggregation (per Origin AS): 63833
Deaggregation factor: 2.47
Unique aggregates announced (without unneeded subnets): 90851
Number of IPv4 prefixes with a valid ROA: 86013
Number of IPv4 prefixes with an invalid ROA: 56
Number of IPv4 prefixes with no ROA: 71849
Total ASes present in the Internet Routing Table: 14781
Prefixes per ASN: 10.68
Origin-only ASes present in the Internet Routing Table: 12492
Origin ASes announcing only one prefix: 6010
Transit ASes present in the Internet Routing Table: 2289
Transit-only ASes present in the Internet Routing Table: 503
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: 51
Max AS path prepend of ASN (212940) 40
Prefixes from unregistered ASNs in the Routing Table: 59
Number of instances of unregistered ASNs: 62
Number of 32-bit ASNs allocated by the RIRs: 46134
Number of 32-bit ASNs visible in the Routing Table: 7317
Prefixes from 32-bit ASNs in the Routing Table: 29217
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: 42
Number of addresses announced to Internet: 509424896
Equivalent to 30 /8s, 93 /16s and 53 /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: 39203
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 76575
Total APNIC prefixes after maximum aggregation: 25353
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 74964
Unique aggregates announced from the APNIC address blocks: 36695
APNIC Region origin ASes present in the Internet Routing Table: 5015
APNIC Prefixes per ASN: 14.95
APNIC Region origin ASes announcing only one prefix: 1869
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: 51
Number of APNIC region 32-bit ASNs visible in the Routing Table: 3218
Number of APNIC addresses announced to Internet: 189088768
Equivalent to 11 /8s, 69 /16s and 68 /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: 27039
Total ARIN prefixes after maximum aggregation: 14803
ARIN Deaggregation factor: 1.83
Prefixes being announced from the ARIN address blocks: 26663
Unique aggregates announced from the ARIN address blocks: 20701
ARIN Region origin ASes present in the Internet Routing Table: 2153
ARIN Prefixes per ASN: 12.38
ARIN Region origin ASes announcing only one prefix: 1011
ARIN Region transit ASes present in the Internet Routing Table: 228
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 475
Number of ARIN addresses announced to Internet: 171518464
Equivalent to 10 /8s, 57 /16s and 42 /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: 39757
Total RIPE prefixes after maximum aggregation: 18775
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 40536
Unique aggregates announced from the RIPE address blocks: 25653
RIPE Region origin ASes present in the Internet Routing Table: 4673
RIPE Prefixes per ASN: 8.67
RIPE Region origin ASes announcing only one prefix: 2139
RIPE Region transit ASes present in the Internet Routing Table: 694
Average RIPE Region AS path length visible: 6.3
Max RIPE Region AS path length visible: 45
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1627
Number of RIPE addresses announced to Internet: 124778752
Equivalent to 7 /8s, 111 /16s and 249 /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: 12577
Total LACNIC prefixes after maximum aggregation: 4436
LACNIC Deaggregation factor: 2.84
Prefixes being announced from the LACNIC address blocks: 12040
Unique aggregates announced from the LACNIC address blocks: 5865
LACNIC Region origin ASes present in the Internet Routing Table: 2288
LACNIC Prefixes per ASN: 5.26
LACNIC Region origin ASes announcing only one prefix: 944
LACNIC Region transit ASes present in the Internet Routing Table: 496
Average LACNIC Region AS path length visible: 7.5
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1926
Number of LACNIC addresses announced to Internet: 18446848
Equivalent to 1 /8s, 25 /16s and 122 /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: 1911
Total AfriNIC prefixes after maximum aggregation: 419
AfriNIC Deaggregation factor: 4.56
Prefixes being announced from the AfriNIC address blocks: 3673
Unique aggregates announced from the AfriNIC address blocks: 1900
AfriNIC Region origin ASes present in the Internet Routing Table: 126
AfriNIC Prefixes per ASN: 29.15
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 7.5
Max AfriNIC Region AS path length visible: 40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 71
Number of AfriNIC addresses announced to Internet: 5562624
Equivalent to 0 /8s, 84 /16s and 225 /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 10153 8753 87 CHINAMOBILE-CN China Mobile Communication
9498 4145 496 257 BBIL-AP BHARTI Airtel Ltd., IN
24560 2839 847 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2004 6034 928 KIXS-AS-KR Korea Telecom, KR
45609 1841 822 323 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd.
7552 1758 692 534 VIETEL-AS-AP Viettel Group, VN
56046 1581 804 173 CMNET-JIANGSU-AP China Mobile communicati
56041 1547 725 74 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 192 53 CMNET-HUNAN-AP China Mobile communication
9919 965 170 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 2400 332 685 MEDIACOM-ENTERPRISE-BUSINESS, US
20115 2229 3095 504 CHARTER-20115, US
16509 2192 3548 1253 AMAZON-02, US
11492 1872 130 1023 CABLEONE, US
714 1204 4391 8 APPLE-ENGINEERING, US
8075 730 16018 616 MICROSOFT-CORP-MSN-AS-BLOCK, US
10796 640 1944 302 TWC-10796-MIDWEST, US
12083 438 191 84 WOW-INTERNET, US
2152 385 39 261 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 2257 1999 781 ROSTELECOM-AS, RU
25019 925 640 342 SAUDINETSTC-AS, SA
49505 854 92 355 SELECTEL, RU
50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM
9123 595 37 263 TIMEWEB-AS, RU
9155 430 37 9 QNET Kuwait, KW
42772 374 63 104 A1-BY-AS, BY
50340 347 34 227 SELECTEL-MSK, RU
21299 345 77 62 KAR-TEL-AS Almaty, Republic of Kazakhstan
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 1965 703 254 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 157 10 69 Universidad Juarez Autonoma de Tabasco, M
52251 139 6 9 NORTECH, AR
11014 130 10 26 CPS, AR
271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
11340 110 25 52 Red Universitaria Nacional, CL
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 535 82 3 KENET-AS, KE
2018 374 318 69 TENET-1, ZA
15399 289 35 32 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
37326 20 1 5 GICO, SO
37531 20 2 15 AIRTEL-NIGER, NE
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 10153 8753 87 CHINAMOBILE-CN China Mobile Communication
39891 4179 255 52 ALJAWWALSTC-AS, SA
9498 4145 496 257 BBIL-AP BHARTI Airtel Ltd., IN
24560 2839 847 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
30036 2400 332 685 MEDIACOM-ENTERPRISE-BUSINESS, US
12389 2257 1999 781 ROSTELECOM-AS, RU
20115 2229 3095 504 CHARTER-20115, US
16509 2192 3548 1253 AMAZON-02, US
4766 2004 6034 928 KIXS-AS-KR Korea Telecom, KR
8151 1965 703 254 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 4145 3888 BBIL-AP BHARTI Airtel Ltd., IN
24560 2839 2301 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem
20115 2229 1725 CHARTER-20115, US
30036 2400 1715 MEDIACOM-ENTERPRISE-BUSINESS, US
8151 1965 1711 UNINET, MX
45609 1841 1518 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for
12389 2257 1476 ROSTELECOM-AS, RU
56041 1547 1473 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1482 1429 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
269325 UNALLOCATED 45.184.40.0/22 270814 ZAAZ PROVEDOR DE INTERN
269325 UNALLOCATED 45.184.40.0/23 270814 ZAAZ PROVEDOR DE INTERN
40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, 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
45.184.40.0/22 Origin: 269325 RESERVED, ZZ
45.184.40.0/22 Transit: 270814 ZAAZ PROVEDOR DE INTERNET E TELECOMUNICA
45.184.40.0/23 Origin: 269325 RESERVED, ZZ
45.184.40.0/23 Transit: 270814 ZAAZ PROVEDOR DE INTERNET E TELECOMUNICA
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
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
/13:80 /14:161 /15:398 /16:2527 /17:1345 /18:2795
/19:4434 /20:7584 /21:9195 /22:16983 /23:16332 /24:96006
/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 2084 2400 MEDIACOM-ENTERPRISE-BUSINESS, US
12389 1358 2257 ROSTELECOM-AS, RU
11492 1313 1872 CABLEONE, US
8151 1061 1965 UNINET, MX
49505 590 854 SELECTEL, RU
50010 552 665 NAWRAS-AS Sultanate of Oman, OM
20115 545 2229 CHARTER-20115, US
36914 511 535 KENET-AS, KE
16509 486 2192 AMAZON-02, US
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:194 2:313 3:98 5:1067 6:4 8:61
12:82 13:87 14:333 15:58 16:63 17:312
18:71 20:23 23:717 24:502 25:2 27:558
31:541 32:2 34:3 35:38 36:1343 37:663
38:529 39:692 40:1 41:248 42:145 43:629
44:20 45:2485 46:783 47:63 49:200 50:325
51:138 52:255 54:41 57:29 58:300 59:451
60:95 61:806 62:554 63:130 64:383 65:285
66:296 67:299 68:69 69:250 70:32 71:76
72:246 74:201 75:64 76:56 77:484 78:450
79:230 80:223 81:346 82:375 83:180 84:184
85:351 86:140 87:301 88:103 89:477 90:133
91:1387 92:426 93:936 94:788 95:1458 96:263
97:145 98:72 99:47 101:354 102:95 103:8088
104:375 105:170 106:292 107:114 108:142 109:429
110:233 111:2102 112:882 113:316 114:845 115:302
116:390 117:1347 118:352 119:273 120:1228 121:389
122:1721 123:450 124:349 125:1581 126:1 128:399
129:60 130:133 131:205 132:43 133:304 134:120
135:23 136:80 137:152 138:330 139:225 140:316
141:202 142:80 143:147 144:111 145:99 146:377
147:257 148:348 149:229 150:276 151:498 152:460
153:37 154:887 155:195 156:446 157:280 158:133
159:392 160:642 161:149 162:268 163:294 164:143
165:224 166:57 167:198 168:351 169:79 170:497
171:161 172:211 173:977 174:119 175:562 176:713
177:553 178:697 179:215 180:496 181:183 182:1569
183:1077 184:139 185:2295 186:224 187:476 188:792
189:295 190:514 191:90 192:1834 193:1120 194:913
195:767 196:289 197:515 198:773 199:584 200:764
201:550 202:2390 203:2190 204:291 205:276 206:302
207:317 208:236 209:320 210:1480 211:1140 212:786
213:539 214:10 216:374 217:543 218:796 219:66
220:568 221:357 222:135 223:1047
End of report
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