[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 2 20:17:04 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 02 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: 261757
Prefixes after maximum aggregation (per Origin AS): 114508
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 135137
Number of IPv4 prefixes with a valid ROA: 117498
Number of IPv4 prefixes with an invalid ROA: 34
Number of IPv4 prefixes with no ROA: 144225
Total ASes present in the Internet Routing Table: 19685
Prefixes per ASN: 13.30
Origin-only ASes present in the Internet Routing Table: 17002
Origin ASes announcing only one prefix: 7726
Transit ASes present in the Internet Routing Table: 2683
Transit-only ASes present in the Internet Routing Table: 707
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: 46309
Number of 32-bit ASNs visible in the Routing Table: 7428
Prefixes from 32-bit ASNs in the Routing Table: 27841
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: 140
Number of addresses announced to Internet: 1551496925
Equivalent to 92 /8s, 121 /16s and 246 /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: 82533
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32126
Total APNIC prefixes after maximum aggregation: 7533
APNIC Deaggregation factor: 4.26
Prefixes being announced from the APNIC address blocks: 30527
Unique aggregates announced from the APNIC address blocks: 7939
APNIC Region origin ASes present in the Internet Routing Table: 1200
APNIC Prefixes per ASN: 25.44
APNIC Region origin ASes announcing only one prefix: 470
APNIC Region transit ASes present in the Internet Routing Table: 204
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: 547
Number of APNIC addresses announced to Internet: 167516780
Equivalent to 9 /8s, 252 /16s and 26 /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: 125458
Total ARIN prefixes after maximum aggregation: 64645
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122315
Unique aggregates announced from the ARIN address blocks: 65604
ARIN Region origin ASes present in the Internet Routing Table: 9314
ARIN Prefixes per ASN: 13.13
ARIN Region origin ASes announcing only one prefix: 3881
ARIN Region transit ASes present in the Internet Routing Table: 861
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: 2171
Number of ARIN addresses announced to Internet: 963645665
Equivalent to 57 /8s, 112 /16s and 16 /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: 48763
Total RIPE prefixes after maximum aggregation: 26279
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 50518
Unique aggregates announced from the RIPE address blocks: 36727
RIPE Region origin ASes present in the Internet Routing Table: 4580
RIPE Prefixes per ASN: 11.03
RIPE Region origin ASes announcing only one prefix: 1933
RIPE Region transit ASes present in the Internet Routing Table: 698
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: 1882
Number of RIPE addresses announced to Internet: 281655376
Equivalent to 16 /8s, 201 /16s and 184 /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: 44834
Total LACNIC prefixes after maximum aggregation: 13526
LACNIC Deaggregation factor: 3.31
Prefixes being announced from the LACNIC address blocks: 43963
Unique aggregates announced from the LACNIC address blocks: 20218
LACNIC Region origin ASes present in the Internet Routing Table: 3501
LACNIC Prefixes per ASN: 12.56
LACNIC Region origin ASes announcing only one prefix: 1338
LACNIC Region transit ASes present in the Internet Routing Table: 715
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: 2688
Number of LACNIC addresses announced to Internet: 96838720
Equivalent to 5 /8s, 197 /16s and 164 /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: 10265
Total AfriNIC prefixes after maximum aggregation: 2316
AfriNIC Deaggregation factor: 4.43
Prefixes being announced from the AfriNIC address blocks: 14294
Unique aggregates announced from the AfriNIC address blocks: 4527
AfriNIC Region origin ASes present in the Internet Routing Table: 262
AfriNIC Prefixes per ASN: 54.56
AfriNIC Region origin ASes announcing only one prefix: 104
AfriNIC Region transit ASes present in the Internet Routing Table: 71
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: 140
Number of AfriNIC addresses announced to Internet: 41780736
Equivalent to 2 /8s, 125 /16s and 134 /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 976 62 423 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 638 2170 464 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 13231 39693 4328 AMAZON-02, US
22773 3378 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54863 2505 DNIC-AS-00749, US
4155 2687 205 1642 USDA-1, US
36352 2514 207 1117 AS-COLOCROSSING, US
367 2433 2903 1180 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 1179 92 966 AKAMAI-ASN1, NL
3257 996 2077 748 GTT-BACKBONE GTT, US
3215 889 4810 291 France Telecom - Orange, FR
25019 886 1304 131 SAUDINETSTC-AS, SA
34984 692 77 414 TELLCOM-AS, TR
8452 660 1842 17 TE-AS TE-AS, EG
203214 584 45 356 HULUMTELE, IQ
8376 574 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 7443 2024 1009 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 1190 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 1490 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 552 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 13231 39693 4328 AMAZON-02, US
9808 10268 8754 92 CHINAMOBILE-CN China Mobile Communication
8151 7443 2024 1009 UNINET, MX
22773 3378 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54863 2505 DNIC-AS-00749, US
4155 2687 205 1642 USDA-1, US
36352 2514 207 1117 AS-COLOCROSSING, US
367 2433 2903 1180 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 7443 6434 UNINET, MX
22773 3378 3203 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 1490 1474 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 /16:7557 /17:3439 /18:4204
/19:7687 /20:12440 /21:15287 /22:27638 /23:27433 /24:153716
/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 3948 7443 UNINET, MX
22773 2522 3378 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2339 13231 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 2514 AS-COLOCROSSING, US
209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US
19901 962 1240 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)
----------------------------------------------
1:78 2:471 3:651 4:5 5:799 6:155
7:5 8:633 11:171 12:992 13:311 14:110
15:301 16:244 17:5 18:884 20:176 21:4
22:188 23:2549 24:644 27:21 29:19 31:466
32:9 33:1 34:10 35:133 36:1321 37:1027
38:1919 39:551 40:62 41:939 42:213 43:191
44:34 45:3639 46:953 47:85 49:49 50:348
51:385 52:1379 54:297 55:1087 56:11 57:15
58:18 59:31 60:16 61:71 62:547 63:762
64:1922 65:1083 66:1544 67:953 68:429 69:1115
70:443 71:202 72:768 74:961 75:426 76:249
77:469 78:335 79:284 80:296 81:351 82:755
83:245 84:342 85:468 86:233 87:242 88:277
89:833 90:103 91:937 92:598 93:460 94:937
95:686 96:289 97:68 98:465 99:162 100:35
101:23 102:376 103:1232 104:1435 105:134 106:18
107:1493 108:547 109:388 110:33 111:1916 112:448
113:39 114:42 115:13 116:62 117:1035 118:74
119:131 120:1174 121:46 122:67 123:73 124:56
125:25 128:476 129:307 130:692 131:888 132:561
133:212 134:489 135:111 136:572 137:494 138:875
139:443 140:709 141:450 142:1025 143:650 144:428
145:135 146:675 147:518 148:867 149:769 150:383
151:628 152:496 153:129 154:1859 155:814 156:1515
157:373 158:537 159:685 160:826 161:696 162:968
163:350 164:710 165:768 166:776 167:624 168:1115
169:144 170:1597 171:123 172:1362 173:825 174:249
175:56 176:734 177:825 178:504 179:674 180:45
181:1734 182:29 183:866 184:474 185:3347 186:2019
187:1365 188:777 189:1713 190:4212 191:421 192:5149
193:1818 194:1218 195:926 196:680 197:1545 198:2719
199:4880 200:3595 201:3309 202:1006 203:738 204:2155
205:1926 206:1546 207:1494 208:1419 209:1930 210:308
211:430 212:936 213:839 214:985 215:42 216:2524
217:417 218:516 219:19 220:26 221:304 222:32
223:762
End of report
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