[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Mar 21 20:17:02 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 21 Mar, 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: 269774
Prefixes after maximum aggregation (per Origin AS): 117575
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 141106
Number of IPv4 prefixes with a valid ROA: 122388
Number of IPv4 prefixes with an invalid ROA: 22
Number of IPv4 prefixes with no ROA: 147364
Total ASes present in the Internet Routing Table: 20761
Prefixes per ASN: 12.99
Origin-only ASes present in the Internet Routing Table: 17831
Origin ASes announcing only one prefix: 7955
Transit ASes present in the Internet Routing Table: 2930
Transit-only ASes present in the Internet Routing Table: 755
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: 286
Number of instances of unregistered ASNs: 287
Number of 32-bit ASNs allocated by the RIRs: 46125
Number of 32-bit ASNs visible in the Routing Table: 8185
Prefixes from 32-bit ASNs in the Routing Table: 31635
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: 122
Number of addresses announced to Internet: 1559235421
Equivalent to 92 /8s, 240 /16s and 11 /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: 86924
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32102
Total APNIC prefixes after maximum aggregation: 7663
APNIC Deaggregation factor: 4.19
Prefixes being announced from the APNIC address blocks: 30835
Unique aggregates announced from the APNIC address blocks: 8221
APNIC Region origin ASes present in the Internet Routing Table: 1209
APNIC Prefixes per ASN: 25.50
APNIC Region origin ASes announcing only one prefix: 478
APNIC Region transit ASes present in the Internet Routing Table: 216
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: 548
Number of APNIC addresses announced to Internet: 169399404
Equivalent to 10 /8s, 24 /16s and 212 /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: 125597
Total ARIN prefixes after maximum aggregation: 64651
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 123269
Unique aggregates announced from the ARIN address blocks: 66480
ARIN Region origin ASes present in the Internet Routing Table: 9348
ARIN Prefixes per ASN: 13.19
ARIN Region origin ASes announcing only one prefix: 3887
ARIN Region transit ASes present in the Internet Routing Table: 877
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: 2159
Number of ARIN addresses announced to Internet: 964629217
Equivalent to 57 /8s, 127 /16s and 18 /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: 50053
Total RIPE prefixes after maximum aggregation: 27186
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 51769
Unique aggregates announced from the RIPE address blocks: 38098
RIPE Region origin ASes present in the Internet Routing Table: 4736
RIPE Prefixes per ASN: 10.93
RIPE Region origin ASes announcing only one prefix: 1979
RIPE Region transit ASes present in the Internet Routing Table: 714
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1928
Number of RIPE addresses announced to Internet: 281264592
Equivalent to 16 /8s, 195 /16s and 193 /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: 51378
Total LACNIC prefixes after maximum aggregation: 15672
LACNIC Deaggregation factor: 3.28
Prefixes being announced from the LACNIC address blocks: 49981
Unique aggregates announced from the LACNIC address blocks: 24005
LACNIC Region origin ASes present in the Internet Routing Table: 4314
LACNIC Prefixes per ASN: 11.59
LACNIC Region origin ASes announcing only one prefix: 1501
LACNIC Region transit ASes present in the Internet Routing Table: 894
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 35
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3401
Number of LACNIC addresses announced to Internet: 100726592
Equivalent to 6 /8s, 0 /16s and 247 /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: 10358
Total AfriNIC prefixes after maximum aggregation: 2190
AfriNIC Deaggregation factor: 4.73
Prefixes being announced from the AfriNIC address blocks: 13798
Unique aggregates announced from the AfriNIC address blocks: 4183
AfriNIC Region origin ASes present in the Internet Routing Table: 273
AfriNIC Prefixes per ASN: 50.54
AfriNIC Region origin ASes announcing only one prefix: 110
AfriNIC Region transit ASes present in the Internet Routing Table: 76
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: 149
Number of AfriNIC addresses announced to Internet: 43163392
Equivalent to 2 /8s, 146 /16s and 159 /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 10140 8753 87 CHINAMOBILE-CN China Mobile Communication
56046 1572 803 179 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1491 192 53 CMNET-HUNAN-AP China Mobile communication
24547 849 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 638 2170 464 SINET-AS Research Organization of Informa
17561 555 35 226 LCS-AS-AP LARUS Limited, HK
24445 511 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 478 779 138 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 12926 39637 3986 AMAZON-02, US
22773 3372 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3259 54879 2506 DNIC-AS-00749, US
4155 2522 187 1534 USDA-1, US
367 2435 2900 1178 DNIC-ASBLK-00306-00371, US
36352 2325 194 1066 AS-COLOCROSSING, US
7018 2226 22910 1588 ATT-INTERNET4, US
11776 1878 257 217 ATLANTICBB-JOHNSTOWN, US
6167 1804 3547 466 CELLCO-PART, US
209 1670 4890 278 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 1258 98 1018 AKAMAI-ASN1, NL
3257 928 2075 750 GTT-BACKBONE GTT, US
3215 927 4886 285 France Telecom - Orange, FR
34984 913 89 506 TELLCOM-AS, TR
25019 849 1290 134 SAUDINETSTC-AS, SA
203214 626 48 368 HULUMTELE, IQ
8452 602 1842 17 TE-AS TE-AS, EG
8376 570 53 22 Jordan Data Communications, JO
212238 570 41 503 CDNEXT, GB
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 7243 2011 999 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1735 256 1228 Telmex Colombia S.A., CO
3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1193 371 22 Telefonica del Peru S.A.A., PE
26615 1013 2503 53 TIM SA, BR
18881 878 1127 31 TELEFONICA BRASIL S.A, BR
28006 644 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 633 90 53 ENTEL CHILE S.A., CL
26599 541 2876 72 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 1457 389 16 LINKdotNET-AS, EG
29571 1128 101 73 ORANGE-COTE-IVOIRE, CI
20011 980 183 284 INTERNET-SOLUTIONS, ZA
24835 864 509 44 RAYA-AS, EG
36935 679 520 41 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 542 82 3 KENET-AS, KE
37069 459 1030 15 MOBINIL, EG
36903 417 195 306 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 12926 39637 3986 AMAZON-02, US
9808 10140 8753 87 CHINAMOBILE-CN China Mobile Communication
8151 7243 2011 999 UNINET, MX
22773 3372 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3259 54879 2506 DNIC-AS-00749, US
4155 2522 187 1534 USDA-1, US
367 2435 2900 1178 DNIC-ASBLK-00306-00371, US
36352 2325 194 1066 AS-COLOCROSSING, US
7018 2226 22910 1588 ATT-INTERNET4, US
11830 1993 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 10140 10053 CHINAMOBILE-CN China Mobile Communications Grou
8151 7243 6244 UNINET, MX
22773 3372 3197 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1878 1661 ATLANTICBB-JOHNSTOWN, US
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1457 1441 LINKdotNET-AS, EG
56047 1491 1438 CMNET-HUNAN-AP China Mobile communications corp
56046 1572 1393 CMNET-JIANGSU-AP China Mobile communications co
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
53966 UNALLOCATED 8.39.98.0/24 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
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 PIGGYTARO-DATA, CA
23.158.216.0/24 Transit: 22427 GNET-AS, 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
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 /11:42 /12:150
/13:218 /14:576 /15:1101 /16:7616 /17:3465 /18:4212
/19:7728 /20:12578 /21:15573 /22:28343 /23:28175 /24:159728
/25:60 /26:76 /27:35 /28:15 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3795 7243 UNINET, MX
22773 2514 3372 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2329 12926 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
10620 980 1735 Telmex Colombia S.A., CO
209 965 1670 CENTURYLINK-US-LEGACY-QWEST, US
19901 934 1170 BRSPD-PUBLIC, US
36352 928 2325 AS-COLOCROSSING, US
11776 881 1878 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:65 2:477 3:594 4:5 5:836 6:150
7:5 8:640 11:171 12:1005 13:289 14:141
15:301 16:241 17:5 18:886 20:173 21:4
22:188 23:2553 24:952 27:24 29:19 31:487
32:18 34:10 35:133 36:1225 37:1168 38:2314
39:542 40:54 41:952 42:218 43:209 44:25
45:4203 46:970 47:84 49:54 50:353 51:382
52:1388 54:276 55:1074 56:9 57:18 58:45
59:29 60:16 61:64 62:537 63:782 64:1876
65:1088 66:1626 67:967 68:417 69:1201 70:438
71:212 72:829 74:983 75:433 76:247 77:507
78:354 79:339 80:314 81:351 82:685 83:246
84:372 85:566 86:252 87:248 88:292 89:849
90:106 91:983 92:670 93:482 94:956 95:644
96:281 97:65 98:436 99:161 100:36 101:26
102:339 103:1240 104:1462 105:135 106:62 107:1486
108:545 109:386 110:57 111:1928 112:463 113:39
114:65 115:20 116:53 117:1046 118:164 119:133
120:1167 121:43 122:110 123:145 124:57 125:23
128:485 129:286 130:670 131:939 132:558 133:213
134:536 135:117 136:560 137:506 138:1032 139:424
140:709 141:429 142:975 143:702 144:420 145:76
146:700 147:495 148:857 149:739 150:372 151:708
152:516 153:127 154:1556 155:799 156:1380 157:373
158:484 159:672 160:880 161:736 162:1007 163:354
164:731 165:835 166:726 167:649 168:1501 169:144
170:1696 171:122 172:1416 173:806 174:254 175:68
176:768 177:1105 178:526 179:796 180:51 181:1910
182:45 183:880 184:505 185:3598 186:2490 187:1462
188:787 189:1750 190:5142 191:504 192:5124 193:1824
194:1253 195:950 196:807 197:1530 198:2690 199:4883
200:4037 201:3401 202:989 203:713 204:2145 205:2005
206:1569 207:1510 208:1370 209:1960 210:308 211:426
212:985 213:895 214:1011 215:42 216:2482 217:448
218:524 219:20 220:25 221:301 222:32 223:741
End of report
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