[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat May 24 20:16:28 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sat 24 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: 264367
Prefixes after maximum aggregation (per Origin AS): 116042
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135590
Number of IPv4 prefixes with a valid ROA: 119330
Number of IPv4 prefixes with an invalid ROA: 40
Number of IPv4 prefixes with no ROA: 144997
Total ASes present in the Internet Routing Table: 19830
Prefixes per ASN: 13.33
Origin-only ASes present in the Internet Routing Table: 17131
Origin ASes announcing only one prefix: 7786
Transit ASes present in the Internet Routing Table: 2699
Transit-only ASes present in the Internet Routing Table: 715
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: 311
Number of instances of unregistered ASNs: 315
Number of 32-bit ASNs allocated by the RIRs: 46510
Number of 32-bit ASNs visible in the Routing Table: 7483
Prefixes from 32-bit ASNs in the Routing Table: 28213
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: 111
Number of addresses announced to Internet: 1557874909
Equivalent to 92 /8s, 219 /16s and 72 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 83510
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32541
Total APNIC prefixes after maximum aggregation: 7493
APNIC Deaggregation factor: 4.34
Prefixes being announced from the APNIC address blocks: 30975
Unique aggregates announced from the APNIC address blocks: 7590
APNIC Region origin ASes present in the Internet Routing Table: 1217
APNIC Prefixes per ASN: 25.45
APNIC Region origin ASes announcing only one prefix: 472
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: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 556
Number of APNIC addresses announced to Internet: 166568300
Equivalent to 9 /8s, 237 /16s and 161 /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: 125855
Total ARIN prefixes after maximum aggregation: 65956
ARIN Deaggregation factor: 1.91
Prefixes being announced from the ARIN address blocks: 122955
Unique aggregates announced from the ARIN address blocks: 66320
ARIN Region origin ASes present in the Internet Routing Table: 9357
ARIN Prefixes per ASN: 13.14
ARIN Region origin ASes announcing only one prefix: 3917
ARIN Region transit ASes present in the Internet Routing Table: 874
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: 2192
Number of ARIN addresses announced to Internet: 961178081
Equivalent to 57 /8s, 74 /16s and 105 /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: 49548
Total RIPE prefixes after maximum aggregation: 26576
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51290
Unique aggregates announced from the RIPE address blocks: 37236
RIPE Region origin ASes present in the Internet Routing Table: 4603
RIPE Prefixes per ASN: 11.14
RIPE Region origin ASes announcing only one prefix: 1951
RIPE Region transit ASes present in the Internet Routing Table: 692
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1886
Number of RIPE addresses announced to Internet: 285838416
Equivalent to 17 /8s, 9 /16s and 140 /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: 45155
Total LACNIC prefixes after maximum aggregation: 13436
LACNIC Deaggregation factor: 3.36
Prefixes being announced from the LACNIC address blocks: 44302
Unique aggregates announced from the LACNIC address blocks: 20019
LACNIC Region origin ASes present in the Internet Routing Table: 3519
LACNIC Prefixes per ASN: 12.59
LACNIC Region origin ASes announcing only one prefix: 1331
LACNIC Region transit ASes present in the Internet Routing Table: 719
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: 2694
Number of LACNIC addresses announced to Internet: 97431616
Equivalent to 5 /8s, 206 /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: 10957
Total AfriNIC prefixes after maximum aggregation: 2368
AfriNIC Deaggregation factor: 4.63
Prefixes being announced from the AfriNIC address blocks: 14734
Unique aggregates announced from the AfriNIC address blocks: 4315
AfriNIC Region origin ASes present in the Internet Routing Table: 292
AfriNIC Prefixes per ASN: 50.46
AfriNIC Region origin ASes announcing only one prefix: 115
AfriNIC Region transit ASes present in the Internet Routing Table: 81
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: 155
Number of AfriNIC addresses announced to Internet: 46808832
Equivalent to 2 /8s, 202 /16s and 63 /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 10844 8756 95 CHINAMOBILE-CN China Mobile Communication
56046 1849 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1586 715 80 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication
24547 863 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
17561 821 52 385 LCS-AS-AP LARUS Limited, HK
24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 605 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 517 848 138 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 13480 40824 5108 AMAZON-02, US
22773 3344 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3230 54783 2481 DNIC-AS-00749, US
4155 2750 209 1684 USDA-1, US
36352 2569 210 1131 AS-COLOCROSSING, US
367 2432 2909 1165 DNIC-ASBLK-00306-00371, US
7018 2074 22883 1527 ATT-INTERNET4, US
11776 1899 259 211 ATLANTICBB-JOHNSTOWN, US
6167 1876 3829 493 CELLCO-PART, US
209 1660 4889 271 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 1182 92 966 AKAMAI-ASN1, NL
3257 929 2076 746 GTT-BACKBONE GTT, US
3215 894 4818 289 France Telecom - Orange, FR
25019 817 1301 129 SAUDINETSTC-AS, SA
8452 779 1841 16 TE-AS TE-AS, EG
34984 688 76 410 TELLCOM-AS, TR
212238 622 44 548 CDNEXT, GB
203214 581 43 379 HULUMTELE, IQ
8376 572 53 21 Jordan Data Communications, JO
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 7441 2004 986 UNINET, MX
11830 1980 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 1198 371 22 Telefonica del Peru S.A.A., PE
26615 1033 2503 52 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 647 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 1481 389 16 LINKdotNET-AS, EG
24835 1025 535 35 RAYA-AS, EG
29571 988 100 74 ORANGE-COTE-IVOIRE, CI
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36992 603 1228 124 ETISALAT-MISR, EG
36935 597 126 167 Vodafone-, EG
36914 545 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 13480 40824 5108 AMAZON-02, US
9808 10844 8756 95 CHINAMOBILE-CN China Mobile Communication
8151 7441 2004 986 UNINET, MX
22773 3344 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3230 54783 2481 DNIC-AS-00749, US
4155 2750 209 1684 USDA-1, US
36352 2569 210 1131 AS-COLOCROSSING, US
367 2432 2909 1165 DNIC-ASBLK-00306-00371, US
7018 2074 22883 1527 ATT-INTERNET4, US
11830 1980 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 10844 10749 CHINAMOBILE-CN China Mobile Communications Grou
8151 7441 6455 UNINET, MX
22773 3344 3180 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1980 1916 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1899 1688 ATLANTICBB-JOHNSTOWN, US
56046 1849 1663 CMNET-JIANGSU-AP China Mobile communications co
56041 1586 1506 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1481 1465 LINKdotNET-AS, EG
36352 2569 1438 AS-COLOCROSSING, US
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 /10:30 /11:41 /12:150
/13:209 /14:573 /15:1100 /16:7642 /17:3429 /18:4227
/19:7646 /20:12461 /21:15273 /22:27494 /23:28001 /24:155841
/25:62 /26:82 /27:38 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3998 7441 UNINET, MX
22773 2497 3344 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2324 13480 AMAZON-02, US
11830 1684 1980 Instituto Costarricense de Electricidad y Telecom., CR
10620 1081 1902 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1044 2569 AS-COLOCROSSING, US
19901 983 1272 BRSPD-PUBLIC, US
209 963 1660 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1899 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 2:472 3:775 4:5 5:800 6:156
7:5 8:683 11:171 12:994 13:378 14:115
15:302 16:247 17:6 18:890 20:183 21:4
22:188 23:2588 24:641 27:22 29:19 31:514
32:9 33:1 34:10 35:136 36:1769 37:979
38:1907 39:551 40:62 41:978 42:21 43:206
44:36 45:3613 46:962 47:92 49:20 50:363
51:386 52:1394 54:316 55:1098 56:11 57:19
58:16 59:30 60:16 61:73 62:542 63:755
64:1934 65:1092 66:1544 67:967 68:400 69:1112
70:415 71:201 72:731 74:948 75:323 76:247
77:486 78:349 79:234 80:310 81:385 82:732
83:233 84:337 85:419 86:233 87:211 88:291
89:876 90:104 91:929 92:635 93:479 94:945
95:684 96:289 97:60 98:454 99:178 100:35
101:39 102:360 103:1236 104:1621 105:214 106:3
107:1526 108:547 109:395 110:35 111:1920 112:485
113:39 114:40 115:23 116:62 117:1043 118:71
119:89 120:1245 121:44 122:65 123:78 124:57
125:25 128:496 129:393 130:699 131:905 132:560
133:211 134:494 135:113 136:606 137:504 138:923
139:433 140:699 141:458 142:1025 143:680 144:437
145:132 146:674 147:513 148:872 149:762 150:350
151:646 152:491 153:129 154:1701 155:862 156:1342
157:376 158:560 159:732 160:814 161:632 162:990
163:431 164:717 165:781 166:792 167:621 168:1114
169:156 170:1553 171:121 172:1376 173:848 174:250
175:59 176:785 177:920 178:508 179:714 180:46
181:1819 182:29 183:955 184:450 185:3513 186:2099
187:1467 188:839 189:1792 190:4222 191:451 192:5198
193:1874 194:1240 195:932 196:689 197:1561 198:2736
199:4915 200:3634 201:3271 202:1009 203:758 204:2150
205:1955 206:1543 207:1525 208:1430 209:1906 210:297
211:419 212:1036 213:781 214:978 215:42 216:2531
217:429 218:523 219:18 220:28 221:350 222:31
223:798
End of report
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