[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu May 1 20:16:57 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Thu 01 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: 261326
Prefixes after maximum aggregation (per Origin AS): 114416
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135108
Number of IPv4 prefixes with a valid ROA: 116918
Number of IPv4 prefixes with an invalid ROA: 41
Number of IPv4 prefixes with no ROA: 144367
Total ASes present in the Internet Routing Table: 19684
Prefixes per ASN: 13.28
Origin-only ASes present in the Internet Routing Table: 17009
Origin ASes announcing only one prefix: 7732
Transit ASes present in the Internet Routing Table: 2675
Transit-only ASes present in the Internet Routing Table: 716
Paths with bogon ASNs present in the IPv4 Routing Table: 6
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: 311
Number of instances of unregistered ASNs: 312
Number of 32-bit ASNs allocated by the RIRs: 46308
Number of 32-bit ASNs visible in the Routing Table: 7418
Prefixes from 32-bit ASNs in the Routing Table: 27643
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 143
Number of addresses announced to Internet: 1551138525
Equivalent to 92 /8s, 116 /16s and 126 /24s
Percentage of available address space announced: 41.9
Percentage of allocated address space announced: 41.9
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: 82445
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31948
Total APNIC prefixes after maximum aggregation: 7454
APNIC Deaggregation factor: 4.29
Prefixes being announced from the APNIC address blocks: 30455
Unique aggregates announced from the APNIC address blocks: 7888
APNIC Region origin ASes present in the Internet Routing Table: 1200
APNIC Prefixes per ASN: 25.38
APNIC Region origin ASes announcing only one prefix: 468
APNIC Region transit ASes present in the Internet Routing Table: 202
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 544
Number of APNIC addresses announced to Internet: 167510124
Equivalent to 9 /8s, 252 /16s and 0 /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: 125567
Total ARIN prefixes after maximum aggregation: 64683
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122405
Unique aggregates announced from the ARIN address blocks: 65655
ARIN Region origin ASes present in the Internet Routing Table: 9318
ARIN Prefixes per ASN: 13.14
ARIN Region origin ASes announcing only one prefix: 3892
ARIN Region transit ASes present in the Internet Routing Table: 859
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2172
Number of ARIN addresses announced to Internet: 963624929
Equivalent to 57 /8s, 111 /16s and 191 /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: 48665
Total RIPE prefixes after maximum aggregation: 26269
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 50439
Unique aggregates announced from the RIPE address blocks: 36704
RIPE Region origin ASes present in the Internet Routing Table: 4583
RIPE Prefixes per ASN: 11.01
RIPE Region origin ASes announcing only one prefix: 1941
RIPE Region transit ASes present in the Internet Routing Table: 691
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: 1883
Number of RIPE addresses announced to Internet: 281656656
Equivalent to 16 /8s, 201 /16s and 189 /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: 44507
Total LACNIC prefixes after maximum aggregation: 13453
LACNIC Deaggregation factor: 3.31
Prefixes being announced from the LACNIC address blocks: 43641
Unique aggregates announced from the LACNIC address blocks: 20146
LACNIC Region origin ASes present in the Internet Routing Table: 3479
LACNIC Prefixes per ASN: 12.54
LACNIC Region origin ASes announcing only one prefix: 1324
LACNIC Region transit ASes present in the Internet Routing Table: 713
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: 2675
Number of LACNIC addresses announced to Internet: 96776256
Equivalent to 5 /8s, 196 /16s and 176 /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: 10328
Total AfriNIC prefixes after maximum aggregation: 2348
AfriNIC Deaggregation factor: 4.40
Prefixes being announced from the AfriNIC address blocks: 14243
Unique aggregates announced from the AfriNIC address blocks: 4590
AfriNIC Region origin ASes present in the Internet Routing Table: 267
AfriNIC Prefixes per ASN: 53.34
AfriNIC Region origin ASes announcing only one prefix: 107
AfriNIC Region transit ASes present in the Internet Routing Table: 73
Average AfriNIC Region AS path length visible: 6.6
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 144
Number of AfriNIC addresses announced to Internet: 41510144
Equivalent to 2 /8s, 121 /16s and 101 /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 10268 8754 92 CHINAMOBILE-CN China Mobile Communication
56046 1622 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication
17561 907 57 379 LCS-AS-AP LARUS Limited, HK
24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 500 796 137 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 13212 39692 4245 AMAZON-02, US
22773 3380 3017 174 ASN-CXA-ALL-CCI-22773-RDC, US
749 3253 54863 2504 DNIC-AS-00749, US
4155 2684 204 1644 USDA-1, US
36352 2506 206 1114 AS-COLOCROSSING, US
367 2442 2904 1187 DNIC-ASBLK-00306-00371, US
7018 2103 22891 1551 ATT-INTERNET4, US
11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1856 3733 470 CELLCO-PART, US
209 1665 4890 275 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 1178 92 965 AKAMAI-ASN1, NL
3257 996 2077 748 GTT-BACKBONE GTT, US
3215 889 4810 291 France Telecom - Orange, FR
25019 812 1301 129 SAUDINETSTC-AS, SA
34984 692 77 414 TELLCOM-AS, TR
8452 659 1842 17 TE-AS TE-AS, EG
203214 582 45 358 HULUMTELE, IQ
8376 573 53 22 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 7295 2025 1007 UNINET, MX
11830 1995 369 64 Instituto Costarricense de Electricidad y
10620 1929 286 1300 Telmex Colombia S.A., CO
3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1189 371 22 Telefonica del Peru S.A.A., PE
26615 1013 2503 52 TIM SA, BR
18881 882 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 550 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 1491 389 16 LINKdotNET-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
29571 971 100 75 ORANGE-COTE-IVOIRE, CI
24835 882 552 38 RAYA-AS, EG
36935 699 135 175 Vodafone-, EG
36992 603 1228 124 ETISALAT-MISR, EG
36914 543 82 3 KENET-AS, KE
37069 465 1046 15 MOBINIL, EG
36903 410 192 301 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 13212 39692 4245 AMAZON-02, US
9808 10268 8754 92 CHINAMOBILE-CN China Mobile Communication
8151 7295 2025 1007 UNINET, MX
22773 3380 3017 174 ASN-CXA-ALL-CCI-22773-RDC, US
749 3253 54863 2504 DNIC-AS-00749, US
4155 2684 204 1644 USDA-1, US
36352 2506 206 1114 AS-COLOCROSSING, US
367 2442 2904 1187 DNIC-ASBLK-00306-00371, US
7018 2103 22891 1551 ATT-INTERNET4, US
11830 1995 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 10268 10176 CHINAMOBILE-CN China Mobile Communications Grou
8151 7295 6288 UNINET, MX
22773 3380 3206 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1995 1931 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1895 1679 ATLANTICBB-JOHNSTOWN, US
56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1491 1475 LINKdotNET-AS, EG
56046 1622 1436 CMNET-JIANGSU-AP China Mobile communications co
56047 1486 1433 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
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
23.166.120.0/24 Origin: 59993 UILLLC-20230328, US
23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, US
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 /12:151
/13:214 /14:577 /15:1096 /16:7556 /17:3441 /18:4198
/19:7675 /20:12353 /21:15349 /22:27543 /23:27371 /24:153484
/25:61 /26:84 /27:36 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3751 7295 UNINET, MX
22773 2524 3380 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2348 13212 AMAZON-02, US
11830 1696 1995 Instituto Costarricense de Electricidad y Telecom., CR
10620 1088 1929 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1012 2506 AS-COLOCROSSING, US
209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US
19901 959 1236 BRSPD-PUBLIC, 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)
----------------------------------------------
1:66 2:471 3:641 4:5 5:797 6:155
7:5 8:632 11:171 12:996 13:303 14:109
15:301 16:244 17:5 18:882 20:176 21:4
22:188 23:2557 24:643 27:21 29:19 31:462
32:9 33:1 34:10 35:135 36:1320 37:1014
38:1908 39:551 40:62 41:927 42:213 43:190
44:34 45:3611 46:953 47:85 49:19 50:350
51:385 52:1381 54:297 55:1087 56:11 57:15
58:18 59:31 60:16 61:72 62:547 63:761
64:1935 65:1091 66:1543 67:955 68:429 69:1121
70:443 71:203 72:770 74:961 75:426 76:249
77:468 78:334 79:283 80:295 81:352 82:753
83:245 84:342 85:468 86:233 87:241 88:276
89:836 90:103 91:933 92:597 93:459 94:937
95:684 96:292 97:66 98:466 99:162 100:35
101:20 102:375 103:1236 104:1443 105:132 106:16
107:1493 108:550 109:389 110:33 111:1916 112:449
113:39 114:43 115:13 116:62 117:1036 118:63
119:130 120:1174 121:46 122:67 123:71 124:56
125:25 128:474 129:307 130:694 131:893 132:562
133:212 134:494 135:111 136:578 137:499 138:866
139:444 140:711 141:448 142:1024 143:645 144:428
145:134 146:673 147:518 148:867 149:774 150:386
151:628 152:481 153:131 154:1834 155:811 156:1476
157:373 158:537 159:683 160:827 161:692 162:968
163:349 164:711 165:763 166:773 167:628 168:1107
169:143 170:1600 171:123 172:1365 173:829 174:250
175:56 176:734 177:833 178:503 179:670 180:45
181:1731 182:29 183:866 184:475 185:3337 186:2024
187:1251 188:780 189:1696 190:4205 191:419 192:5144
193:1816 194:1217 195:920 196:679 197:1644 198:2719
199:4888 200:3580 201:3299 202:1000 203:738 204:2156
205:1934 206:1548 207:1495 208:1418 209:1934 210:308
211:430 212:933 213:846 214:983 215:42 216:2530
217:418 218:516 219:19 220:26 221:304 222:32
223:761
End of report
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