[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri May 16 20:16:56 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 16 May, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 263545
Prefixes after maximum aggregation (per Origin AS): 115690
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135174
Number of IPv4 prefixes with a valid ROA: 118701
Number of IPv4 prefixes with an invalid ROA: 28
Number of IPv4 prefixes with no ROA: 144816
Total ASes present in the Internet Routing Table: 19759
Prefixes per ASN: 13.34
Origin-only ASes present in the Internet Routing Table: 17082
Origin ASes announcing only one prefix: 7757
Transit ASes present in the Internet Routing Table: 2677
Transit-only ASes present in the Internet Routing Table: 720
Paths with bogon ASNs present in the IPv4 Routing Table: 9
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 314
Number of instances of unregistered ASNs: 318
Number of 32-bit ASNs allocated by the RIRs: 46423
Number of 32-bit ASNs visible in the Routing Table: 7429
Prefixes from 32-bit ASNs in the Routing Table: 27844
Number of bogon 32-bit ASNs visible in the Routing Table: 10
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 136
Number of addresses announced to Internet: 1553370333
Equivalent to 92 /8s, 150 /16s and 140 /24s
Percentage of available address space announced: 42.0
Percentage of allocated address space announced: 42.0
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: 83294
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32373
Total APNIC prefixes after maximum aggregation: 7520
APNIC Deaggregation factor: 4.30
Prefixes being announced from the APNIC address blocks: 30799
Unique aggregates announced from the APNIC address blocks: 7609
APNIC Region origin ASes present in the Internet Routing Table: 1205
APNIC Prefixes per ASN: 25.56
APNIC Region origin ASes announcing only one prefix: 478
APNIC Region transit ASes present in the Internet Routing Table: 206
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 555
Number of APNIC addresses announced to Internet: 167563628
Equivalent to 9 /8s, 252 /16s and 209 /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: 125798
Total ARIN prefixes after maximum aggregation: 65498
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 122920
Unique aggregates announced from the ARIN address blocks: 66028
ARIN Region origin ASes present in the Internet Routing Table: 9332
ARIN Prefixes per ASN: 13.17
ARIN Region origin ASes announcing only one prefix: 3895
ARIN Region transit ASes present in the Internet Routing Table: 867
Average ARIN Region AS path length visible: 5.4
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2178
Number of ARIN addresses announced to Internet: 960401889
Equivalent to 57 /8s, 62 /16s and 145 /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: 49268
Total RIPE prefixes after maximum aggregation: 26737
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 50969
Unique aggregates announced from the RIPE address blocks: 37220
RIPE Region origin ASes present in the Internet Routing Table: 4604
RIPE Prefixes per ASN: 11.07
RIPE Region origin ASes announcing only one prefix: 1926
RIPE Region transit ASes present in the Internet Routing Table: 700
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1877
Number of RIPE addresses announced to Internet: 281181008
Equivalent to 16 /8s, 194 /16s and 123 /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: 45001
Total LACNIC prefixes after maximum aggregation: 13385
LACNIC Deaggregation factor: 3.36
Prefixes being announced from the LACNIC address blocks: 44059
Unique aggregates announced from the LACNIC address blocks: 19994
LACNIC Region origin ASes present in the Internet Routing Table: 3484
LACNIC Prefixes per ASN: 12.65
LACNIC Region origin ASes announcing only one prefix: 1348
LACNIC Region transit ASes present in the Internet Routing Table: 695
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2665
Number of LACNIC addresses announced to Internet: 97415744
Equivalent to 5 /8s, 206 /16s and 114 /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: 10791
Total AfriNIC prefixes after maximum aggregation: 2337
AfriNIC Deaggregation factor: 4.62
Prefixes being announced from the AfriNIC address blocks: 14662
Unique aggregates announced from the AfriNIC address blocks: 4205
AfriNIC Region origin ASes present in the Internet Routing Table: 286
AfriNIC Prefixes per ASN: 51.27
AfriNIC Region origin ASes announcing only one prefix: 110
AfriNIC Region transit ASes present in the Internet Routing Table: 78
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 154
Number of AfriNIC addresses announced to Internet: 46756096
Equivalent to 2 /8s, 201 /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 10804 8756 95 CHINAMOBILE-CN China Mobile Communication
56046 1772 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1572 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication
24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
17561 855 54 402 LCS-AS-AP LARUS Limited, HK
24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 600 2154 463 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 520 852 139 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13399 40824 5011 AMAZON-02, US
22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3243 54815 2494 DNIC-AS-00749, US
4155 2731 207 1676 USDA-1, US
36352 2528 208 1122 AS-COLOCROSSING, US
367 2449 2910 1178 DNIC-ASBLK-00306-00371, US
7018 2094 22887 1543 ATT-INTERNET4, US
11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1860 3758 488 CELLCO-PART, US
209 1663 4890 273 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1177 92 966 AKAMAI-ASN1, NL
3257 931 2076 748 GTT-BACKBONE GTT, US
3215 895 4818 289 France Telecom - Orange, FR
25019 814 1301 129 SAUDINETSTC-AS, SA
8452 709 1842 17 TE-AS TE-AS, EG
34984 689 76 412 TELLCOM-AS, TR
212238 625 44 551 CDNEXT, GB
8376 570 53 21 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7458 2010 997 UNINET, MX
11830 1996 369 64 Instituto Costarricense de Electricidad y
10620 1902 280 1293 Telmex Colombia S.A., CO
3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1195 371 22 Telefonica del Peru S.A.A., PE
26615 1027 2503 52 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 644 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 552 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1495 389 16 LINKdotNET-AS, EG
24835 1037 523 36 RAYA-AS, EG
29571 981 100 75 ORANGE-COTE-IVOIRE, CI
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36992 603 1228 124 ETISALAT-MISR, EG
36935 585 125 166 Vodafone-, EG
36914 542 82 3 KENET-AS, KE
37069 469 1046 15 MOBINIL, EG
36903 457 205 331 MT-MPLS, MA
2018 373 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13399 40824 5011 AMAZON-02, US
9808 10804 8756 95 CHINAMOBILE-CN China Mobile Communication
8151 7458 2010 997 UNINET, MX
22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3243 54815 2494 DNIC-AS-00749, US
4155 2731 207 1676 USDA-1, US
36352 2528 208 1122 AS-COLOCROSSING, US
367 2449 2910 1178 DNIC-ASBLK-00306-00371, US
7018 2094 22887 1543 ATT-INTERNET4, US
11830 1996 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10804 10709 CHINAMOBILE-CN China Mobile Communications Grou
8151 7458 6461 UNINET, MX
22773 3345 3181 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1996 1932 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1895 1679 ATLANTICBB-JOHNSTOWN, US
56046 1772 1586 CMNET-JIANGSU-AP China Mobile communications co
56041 1572 1494 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1495 1479 LINKdotNET-AS, EG
56047 1485 1432 CMNET-HUNAN-AP China Mobile communications corp
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
41.204.224.0/24 Origin: 36911 RESERVED, ZZ
41.204.224.0/24 Transit: 328766 RESERVED, ZZ
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:41 /12:150
/13:208 /14:573 /15:1099 /16:7633 /17:3452 /18:4205
/19:7661 /20:12347 /21:15240 /22:27391 /23:27787 /24:155486
/25:61 /26:79 /27:35 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3988 7458 UNINET, MX
22773 2499 3345 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2330 13399 AMAZON-02, US
11830 1697 1996 Instituto Costarricense de Electricidad y Telecom., CR
10620 1081 1902 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1008 2528 AS-COLOCROSSING, US
19901 978 1264 BRSPD-PUBLIC, US
209 964 1663 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1895 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:19 2:476 3:741 4:6 5:776 6:156
7:5 8:680 11:171 12:996 13:364 14:114
15:301 16:246 17:6 18:882 20:177 21:4
22:188 23:2596 24:638 27:21 29:19 31:532
32:9 33:1 34:10 35:133 36:1714 37:904
38:1966 39:554 40:62 41:879 42:21 43:201
44:35 45:3618 46:958 47:92 49:18 50:363
51:386 52:1387 54:313 55:1090 56:11 57:18
58:17 59:15 60:16 61:74 62:543 63:753
64:1997 65:1085 66:1585 67:958 68:396 69:1128
70:413 71:202 72:733 74:950 75:427 76:248
77:468 78:364 79:287 80:300 81:368 82:737
83:231 84:342 85:452 86:233 87:230 88:292
89:858 90:104 91:933 92:612 93:485 94:912
95:677 96:289 97:59 98:458 99:179 100:35
101:22 102:400 103:1211 104:1629 105:217 106:29
107:1530 108:546 109:387 110:35 111:1961 112:460
113:39 114:40 115:22 116:62 117:1047 118:40
119:124 120:1220 121:45 122:59 123:78 124:57
125:25 128:494 129:394 130:689 131:901 132:564
133:212 134:494 135:113 136:610 137:501 138:874
139:430 140:701 141:458 142:1023 143:683 144:421
145:136 146:682 147:492 148:866 149:774 150:352
151:640 152:495 153:129 154:1696 155:843 156:1432
157:372 158:551 159:733 160:824 161:668 162:976
163:359 164:718 165:775 166:788 167:629 168:1142
169:154 170:1613 171:125 172:1372 173:842 174:255
175:62 176:688 177:841 178:472 179:710 180:49
181:1826 182:29 183:930 184:450 185:3516 186:2054
187:1402 188:808 189:1758 190:4249 191:447 192:5172
193:1894 194:1234 195:958 196:713 197:1564 198:2727
199:4914 200:3594 201:3288 202:967 203:725 204:2160
205:1935 206:1542 207:1508 208:1433 209:1936 210:290
211:437 212:1074 213:841 214:982 215:42 216:2528
217:426 218:520 219:19 220:28 221:339 222:31
223:792
End of report
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