[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun May 25 20:16:28 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sun 25 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: 264017
Prefixes after maximum aggregation (per Origin AS): 115987
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135522
Number of IPv4 prefixes with a valid ROA: 118972
Number of IPv4 prefixes with an invalid ROA: 40
Number of IPv4 prefixes with no ROA: 145005
Total ASes present in the Internet Routing Table: 19873
Prefixes per ASN: 13.29
Origin-only ASes present in the Internet Routing Table: 17132
Origin ASes announcing only one prefix: 7793
Transit ASes present in the Internet Routing Table: 2741
Transit-only ASes present in the Internet Routing Table: 750
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: 312
Number of instances of unregistered ASNs: 316
Number of 32-bit ASNs allocated by the RIRs: 46520
Number of 32-bit ASNs visible in the Routing Table: 7501
Prefixes from 32-bit ASNs in the Routing Table: 27917
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: 112
Number of addresses announced to Internet: 1557382109
Equivalent to 92 /8s, 211 /16s and 195 /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: 83279
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32490
Total APNIC prefixes after maximum aggregation: 7467
APNIC Deaggregation factor: 4.35
Prefixes being announced from the APNIC address blocks: 30955
Unique aggregates announced from the APNIC address blocks: 7565
APNIC Region origin ASes present in the Internet Routing Table: 1232
APNIC Prefixes per ASN: 25.13
APNIC Region origin ASes announcing only one prefix: 483
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: 566
Number of APNIC addresses announced to Internet: 166552172
Equivalent to 9 /8s, 237 /16s and 98 /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: 125952
Total ARIN prefixes after maximum aggregation: 66016
ARIN Deaggregation factor: 1.91
Prefixes being announced from the ARIN address blocks: 123029
Unique aggregates announced from the ARIN address blocks: 66405
ARIN Region origin ASes present in the Internet Routing Table: 9356
ARIN Prefixes per ASN: 13.15
ARIN Region origin ASes announcing only one prefix: 3916
ARIN Region transit ASes present in the Internet Routing Table: 876
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: 2194
Number of ARIN addresses announced to Internet: 961015521
Equivalent to 57 /8s, 71 /16s and 238 /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: 49460
Total RIPE prefixes after maximum aggregation: 26530
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51209
Unique aggregates announced from the RIPE address blocks: 37179
RIPE Region origin ASes present in the Internet Routing Table: 4599
RIPE Prefixes per ASN: 11.13
RIPE Region origin ASes announcing only one prefix: 1939
RIPE Region transit ASes present in the Internet Routing Table: 703
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: 1888
Number of RIPE addresses announced to Internet: 285507920
Equivalent to 17 /8s, 4 /16s and 129 /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: 44786
Total LACNIC prefixes after maximum aggregation: 13383
LACNIC Deaggregation factor: 3.35
Prefixes being announced from the LACNIC address blocks: 43935
Unique aggregates announced from the LACNIC address blocks: 19953
LACNIC Region origin ASes present in the Internet Routing Table: 3514
LACNIC Prefixes per ASN: 12.50
LACNIC Region origin ASes announcing only one prefix: 1339
LACNIC Region transit ASes present in the Internet Routing Table: 728
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: 2695
Number of LACNIC addresses announced to Internet: 97423936
Equivalent to 5 /8s, 206 /16s and 146 /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: 11017
Total AfriNIC prefixes after maximum aggregation: 2377
AfriNIC Deaggregation factor: 4.63
Prefixes being announced from the AfriNIC address blocks: 14777
Unique aggregates announced from the AfriNIC address blocks: 4309
AfriNIC Region origin ASes present in the Internet Routing Table: 295
AfriNIC Prefixes per ASN: 50.09
AfriNIC Region origin ASes announcing only one prefix: 116
AfriNIC Region transit ASes present in the Internet Routing Table: 80
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: 158
Number of AfriNIC addresses announced to Internet: 46832640
Equivalent to 2 /8s, 202 /16s and 156 /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 13538 40827 5155 AMAZON-02, US
22773 3344 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3231 54784 2482 DNIC-AS-00749, US
4155 2752 209 1685 USDA-1, US
36352 2569 210 1131 AS-COLOCROSSING, US
367 2439 2910 1171 DNIC-ASBLK-00306-00371, US
7018 2074 22883 1527 ATT-INTERNET4, US
11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US
6167 1876 3829 493 CELLCO-PART, US
209 1661 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 621 44 547 CDNEXT, GB
203214 586 43 379 HULUMTELE, IQ
8376 573 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 1990 369 64 Instituto Costarricense de Electricidad y
10620 1902 280 1293 Telmex Colombia S.A., CO
3816 1339 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1196 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 1049 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 601 128 168 Vodafone-, EG
36914 552 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 13538 40827 5155 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 3231 54784 2482 DNIC-AS-00749, US
4155 2752 209 1685 USDA-1, US
36352 2569 210 1131 AS-COLOCROSSING, US
367 2439 2910 1171 DNIC-ASBLK-00306-00371, US
7018 2074 22883 1527 ATT-INTERNET4, US
11830 1990 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 1990 1926 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1900 1689 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 /16:7637 /17:3423 /18:4220
/19:7646 /20:12421 /21:15264 /22:27475 /23:27931 /24:155649
/25:62 /26:82 /27:36 /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 2363 13538 AMAZON-02, US
11830 1693 1990 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
209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1900 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 2:474 3:781 4:5 5:792 6:156
7:5 8:680 11:171 12:987 13:378 14:115
15:302 16:247 17:6 18:889 20:183 21:4
22:188 23:2597 24:641 27:24 29:19 31:504
32:9 33:1 34:10 35:136 36:1768 37:984
38:1899 39:551 40:62 41:978 42:21 43:206
44:35 45:3600 46:960 47:92 49:20 50:366
51:386 52:1394 54:316 55:1096 56:11 57:19
58:16 59:32 60:17 61:73 62:544 63:755
64:1919 65:1090 66:1545 67:964 68:399 69:1125
70:415 71:201 72:737 74:969 75:327 76:248
77:487 78:349 79:237 80:310 81:371 82:730
83:233 84:337 85:423 86:234 87:212 88:293
89:875 90:104 91:931 92:639 93:482 94:945
95:677 96:289 97:60 98:453 99:178 100:35
101:36 102:373 103:1237 104:1619 105:214 106:4
107:1525 108:548 109:399 110:35 111:1920 112:485
113:39 114:40 115:23 116:62 117:1043 118:62
119:89 120:1249 121:44 122:65 123:76 124:57
125:25 128:493 129:393 130:700 131:905 132:562
133:211 134:495 135:113 136:606 137:508 138:917
139:432 140:700 141:459 142:1025 143:689 144:437
145:132 146:673 147:516 148:882 149:763 150:351
151:644 152:476 153:129 154:1699 155:861 156:1335
157:377 158:559 159:719 160:818 161:633 162:991
163:431 164:719 165:774 166:791 167:623 168:1113
169:155 170:1548 171:121 172:1379 173:849 174:250
175:59 176:786 177:831 178:507 179:683 180:46
181:1821 182:29 183:955 184:450 185:3528 186:2086
187:1415 188:832 189:1760 190:4221 191:449 192:5195
193:1880 194:1240 195:933 196:685 197:1570 198:2734
199:4917 200:3633 201:3272 202:1009 203:754 204:2150
205:1957 206:1558 207:1529 208:1430 209:1908 210:297
211:419 212:1027 213:784 214:977 215:42 216:2542
217:429 218:523 219:18 220:28 221:350 222:31
223:798
End of report
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