[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon Apr 28 20:17:02 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 28 Apr, 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: 262953
Prefixes after maximum aggregation (per Origin AS): 114544
Deaggregation factor: 2.30
Unique aggregates announced (without unneeded subnets): 135133
Number of IPv4 prefixes with a valid ROA: 116506
Number of IPv4 prefixes with an invalid ROA: 19
Number of IPv4 prefixes with no ROA: 146428
Total ASes present in the Internet Routing Table: 19693
Prefixes per ASN: 13.35
Origin-only ASes present in the Internet Routing Table: 17001
Origin ASes announcing only one prefix: 7745
Transit ASes present in the Internet Routing Table: 2692
Transit-only ASes present in the Internet Routing Table: 710
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: 46291
Number of 32-bit ASNs visible in the Routing Table: 7424
Prefixes from 32-bit ASNs in the Routing Table: 27997
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: 136
Number of addresses announced to Internet: 1564130781
Equivalent to 93 /8s, 58 /16s and 189 /24s
Percentage of available address space announced: 42.2
Percentage of allocated address space announced: 42.2
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: 82629
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32206
Total APNIC prefixes after maximum aggregation: 7487
APNIC Deaggregation factor: 4.30
Prefixes being announced from the APNIC address blocks: 30585
Unique aggregates announced from the APNIC address blocks: 7865
APNIC Region origin ASes present in the Internet Routing Table: 1212
APNIC Prefixes per ASN: 25.24
APNIC Region origin ASes announcing only one prefix: 478
APNIC Region transit ASes present in the Internet Routing Table: 207
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: 553
Number of APNIC addresses announced to Internet: 175645804
Equivalent to 10 /8s, 120 /16s and 36 /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: 125510
Total ARIN prefixes after maximum aggregation: 64699
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122849
Unique aggregates announced from the ARIN address blocks: 66087
ARIN Region origin ASes present in the Internet Routing Table: 9327
ARIN Prefixes per ASN: 13.17
ARIN Region origin ASes announcing only one prefix: 3895
ARIN Region transit ASes present in the Internet Routing Table: 865
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: 2173
Number of ARIN addresses announced to Internet: 964840417
Equivalent to 57 /8s, 130 /16s and 75 /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: 48597
Total RIPE prefixes after maximum aggregation: 26370
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 50070
Unique aggregates announced from the RIPE address blocks: 36519
RIPE Region origin ASes present in the Internet Routing Table: 4551
RIPE Prefixes per ASN: 11.00
RIPE Region origin ASes announcing only one prefix: 1934
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: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1859
Number of RIPE addresses announced to Internet: 279777104
Equivalent to 16 /8s, 173 /16s and 15 /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: 44446
Total LACNIC prefixes after maximum aggregation: 13458
LACNIC Deaggregation factor: 3.30
Prefixes being announced from the LACNIC address blocks: 43584
Unique aggregates announced from the LACNIC address blocks: 20136
LACNIC Region origin ASes present in the Internet Routing Table: 3481
LACNIC Prefixes per ASN: 12.52
LACNIC Region origin ASes announcing only one prefix: 1322
LACNIC Region transit ASes present in the Internet Routing Table: 711
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 36
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2678
Number of LACNIC addresses announced to Internet: 96770112
Equivalent to 5 /8s, 196 /16s and 152 /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: 11883
Total AfriNIC prefixes after maximum aggregation: 2319
AfriNIC Deaggregation factor: 5.12
Prefixes being announced from the AfriNIC address blocks: 15729
Unique aggregates announced from the AfriNIC address blocks: 4408
AfriNIC Region origin ASes present in the Internet Routing Table: 289
AfriNIC Prefixes per ASN: 54.43
AfriNIC Region origin ASes announcing only one prefix: 116
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 7.1
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 161
Number of AfriNIC addresses announced to Internet: 47044352
Equivalent to 2 /8s, 205 /16s and 215 /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 10270 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
24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
17561 833 53 347 LCS-AS-AP LARUS Limited, HK
24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
45102 549 851 141 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
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 39702 4092 AMAZON-02, US
22773 3388 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
4155 2671 203 1632 USDA-1, US
36352 2479 205 1102 AS-COLOCROSSING, US
367 2444 2874 1188 DNIC-ASBLK-00306-00371, US
7018 2111 22893 1557 ATT-INTERNET4, US
11776 1894 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1846 3687 467 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 1236 96 1010 AKAMAI-ASN1, NL
3257 918 2075 743 GTT-BACKBONE GTT, US
3215 889 4810 291 France Telecom - Orange, FR
25019 785 1301 129 SAUDINETSTC-AS, SA
34984 670 72 394 TELLCOM-AS, TR
8452 656 1842 17 TE-AS TE-AS, EG
203214 578 45 343 HULUMTELE, IQ
8376 576 53 23 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 7398 2024 1014 UNINET, MX
11830 1993 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 21 Telefonica del Peru S.A.A., PE
26615 989 2503 52 TIM SA, BR
18881 882 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 645 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 548 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
29571 1330 101 69 ORANGE-COTE-IVOIRE, CI
20011 980 185 285 INTERNET-SOLUTIONS, ZA
24835 878 528 38 RAYA-AS, EG
36903 727 333 400 MT-MPLS, MA
36935 700 519 48 Vodafone-, EG
37069 680 1055 19 MOBINIL, EG
36992 604 1228 124 ETISALAT-MISR, EG
36914 534 82 3 KENET-AS, KE
6713 394 1788 46 IAM-AS, MA
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 39702 4092 AMAZON-02, US
9808 10270 8754 92 CHINAMOBILE-CN China Mobile Communication
8151 7398 2024 1014 UNINET, MX
22773 3388 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
4155 2671 203 1632 USDA-1, US
36352 2479 205 1102 AS-COLOCROSSING, US
367 2444 2874 1188 DNIC-ASBLK-00306-00371, US
7018 2111 22893 1557 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 10270 10178 CHINAMOBILE-CN China Mobile Communications Grou
8151 7398 6384 UNINET, MX
22773 3388 3213 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1894 1678 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 /11:43 /12:153
/13:217 /14:582 /15:1097 /16:7724 /17:3495 /18:4225
/19:7732 /20:12585 /21:15578 /22:27591 /23:27415 /24:154257
/25:52 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3905 7398 UNINET, MX
22773 2532 3388 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2350 13231 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
10620 1088 1929 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1000 2479 AS-COLOCROSSING, US
209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US
19901 950 1218 BRSPD-PUBLIC, US
11776 883 1894 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:67 2:463 3:624 4:5 5:837 6:156
7:5 8:635 11:171 12:994 13:293 14:110
15:301 16:244 17:5 18:887 20:175 21:4
22:188 23:2616 24:641 27:21 29:19 31:458
32:9 34:10 35:136 36:1317 37:1018 38:2000
39:551 40:64 41:1074 42:226 43:189 44:34
45:3601 46:963 47:96 49:19 50:356 51:385
52:1382 54:294 55:1078 56:11 57:16 58:18
59:43 60:16 61:72 62:550 63:768 64:1923
65:1096 66:1542 67:953 68:400 69:1116 70:422
71:205 72:757 74:970 75:427 76:247 77:480
78:327 79:287 80:298 81:377 82:743 83:243
84:341 85:455 86:234 87:240 88:278 89:827
90:103 91:947 92:603 93:456 94:927 95:682
96:289 97:63 98:471 99:161 100:35 101:24
102:420 103:1221 104:1438 105:157 106:16 107:1491
108:547 109:394 110:36 111:1916 112:450 113:37
114:41 115:13 116:58 117:1034 118:71 119:128
120:1174 121:46 122:65 123:74 124:56 125:25
128:469 129:409 130:702 131:882 132:539 133:212
134:493 135:111 136:582 137:503 138:862 139:440
140:706 141:450 142:1028 143:644 144:429 145:111
146:676 147:520 148:863 149:792 150:380 151:634
152:492 153:130 154:1884 155:802 156:1379 157:380
158:534 159:690 160:976 161:700 162:977 163:357
164:714 165:808 166:765 167:617 168:1168 169:151
170:1606 171:126 172:1383 173:847 174:259 175:52
176:768 177:838 178:500 179:673 180:47 181:1736
182:27 183:866 184:479 185:3320 186:2019 187:1361
188:785 189:1703 190:4205 191:413 192:5121 193:1834
194:1217 195:903 196:838 197:1588 198:2699 199:4877
200:3554 201:3242 202:994 203:729 204:2159 205:1936
206:1534 207:1504 208:1397 209:1938 210:305 211:430
212:951 213:860 214:979 215:42 216:2516 217:404
218:515 219:19 220:26 221:305 222:32 223:763
End of report
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