[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon May 5 20:17:06 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 05 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: 261858
Prefixes after maximum aggregation (per Origin AS): 114660
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 134984
Number of IPv4 prefixes with a valid ROA: 118629
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 143187
Total ASes present in the Internet Routing Table: 19659
Prefixes per ASN: 13.32
Origin-only ASes present in the Internet Routing Table: 17001
Origin ASes announcing only one prefix: 7722
Transit ASes present in the Internet Routing Table: 2658
Transit-only ASes present in the Internet Routing Table: 695
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: 308
Number of instances of unregistered ASNs: 309
Number of 32-bit ASNs allocated by the RIRs: 46335
Number of 32-bit ASNs visible in the Routing Table: 7383
Prefixes from 32-bit ASNs in the Routing Table: 27617
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: 138
Number of addresses announced to Internet: 1555267165
Equivalent to 92 /8s, 179 /16s and 126 /24s
Percentage of available address space announced: 42.0
Percentage of allocated address space announced: 42.0
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: 83336
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32078
Total APNIC prefixes after maximum aggregation: 7508
APNIC Deaggregation factor: 4.27
Prefixes being announced from the APNIC address blocks: 30464
Unique aggregates announced from the APNIC address blocks: 7889
APNIC Region origin ASes present in the Internet Routing Table: 1196
APNIC Prefixes per ASN: 25.47
APNIC Region origin ASes announcing only one prefix: 469
APNIC Region transit ASes present in the Internet Routing Table: 203
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: 543
Number of APNIC addresses announced to Internet: 167498604
Equivalent to 9 /8s, 251 /16s and 211 /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: 125383
Total ARIN prefixes after maximum aggregation: 64870
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 122265
Unique aggregates announced from the ARIN address blocks: 65654
ARIN Region origin ASes present in the Internet Routing Table: 9327
ARIN Prefixes per ASN: 13.11
ARIN Region origin ASes announcing only one prefix: 3895
ARIN Region transit ASes present in the Internet Routing Table: 858
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: 2175
Number of ARIN addresses announced to Internet: 968525153
Equivalent to 57 /8s, 186 /16s and 133 /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: 49758
Total RIPE prefixes after maximum aggregation: 26225
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 51546
Unique aggregates announced from the RIPE address blocks: 36595
RIPE Region origin ASes present in the Internet Routing Table: 4578
RIPE Prefixes per ASN: 11.26
RIPE Region origin ASes announcing only one prefix: 1925
RIPE Region transit ASes present in the Internet Routing Table: 693
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: 1869
Number of RIPE addresses announced to Internet: 281292368
Equivalent to 16 /8s, 196 /16s and 46 /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: 44098
Total LACNIC prefixes after maximum aggregation: 13490
LACNIC Deaggregation factor: 3.27
Prefixes being announced from the LACNIC address blocks: 43224
Unique aggregates announced from the LACNIC address blocks: 20042
LACNIC Region origin ASes present in the Internet Routing Table: 3479
LACNIC Prefixes per ASN: 12.42
LACNIC Region origin ASes announcing only one prefix: 1332
LACNIC Region transit ASes present in the Internet Routing Table: 698
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: 2656
Number of LACNIC addresses announced to Internet: 96216896
Equivalent to 5 /8s, 188 /16s and 39 /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: 10233
Total AfriNIC prefixes after maximum aggregation: 2361
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 14221
Unique aggregates announced from the AfriNIC address blocks: 4683
AfriNIC Region origin ASes present in the Internet Routing Table: 263
AfriNIC Prefixes per ASN: 54.07
AfriNIC Region origin ASes announcing only one prefix: 101
AfriNIC Region transit ASes present in the Internet Routing Table: 74
Average AfriNIC Region AS path length visible: 6.6
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: 41681664
Equivalent to 2 /8s, 124 /16s and 3 /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 971 61 419 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 639 2170 465 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 13322 40826 4469 AMAZON-02, US
22773 3364 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54863 2505 DNIC-AS-00749, US
4155 2679 204 1649 USDA-1, US
36352 2516 207 1119 AS-COLOCROSSING, US
367 2436 2904 1181 DNIC-ASBLK-00306-00371, US
7018 2101 22891 1550 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 3251 197 64 ALJAWWALSTC-AS, SA
20940 1175 92 964 AKAMAI-ASN1, NL
3257 996 2077 748 GTT-BACKBONE GTT, US
3215 890 4818 287 France Telecom - Orange, FR
25019 857 1303 130 SAUDINETSTC-AS, SA
34984 686 76 409 TELLCOM-AS, TR
8452 660 1842 17 TE-AS TE-AS, EG
203214 577 45 362 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 6868 1883 1022 UNINET, MX
11830 1994 369 64 Instituto Costarricense de Electricidad y
10620 1930 286 1301 Telmex Colombia S.A., CO
3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1192 371 22 Telefonica del Peru S.A.A., PE
26615 1014 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 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 1491 389 16 LINKdotNET-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
24835 882 552 38 RAYA-AS, EG
29571 825 100 76 ORANGE-COTE-IVOIRE, CI
36935 719 141 184 Vodafone-, EG
36992 603 1228 124 ETISALAT-MISR, EG
36914 537 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 13322 40826 4469 AMAZON-02, US
9808 10268 8754 92 CHINAMOBILE-CN China Mobile Communication
8151 6868 1883 1022 UNINET, MX
22773 3364 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54863 2505 DNIC-AS-00749, US
39891 3251 197 64 ALJAWWALSTC-AS, SA
4155 2679 204 1649 USDA-1, US
36352 2516 207 1119 AS-COLOCROSSING, US
367 2436 2904 1181 DNIC-ASBLK-00306-00371, US
7018 2101 22891 1550 ATT-INTERNET4, US
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 6868 5846 UNINET, MX
22773 3364 3199 ASN-CXA-ALL-CCI-22773-RDC, US
39891 3251 3187 ALJAWWALSTC-AS, SA
11830 1994 1930 Instituto Costarricense de Electricidad y Telec
11776 1895 1679 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 /11:41 /12:151
/13:214 /14:578 /15:1098 /16:7625 /17:3445 /18:4203
/19:7622 /20:12320 /21:15253 /22:27520 /23:27471 /24:154041
/25:60 /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 3575 6868 UNINET, MX
22773 2516 3364 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2368 3251 ALJAWWALSTC-AS, SA
16509 2339 13322 AMAZON-02, US
11830 1695 1994 Instituto Costarricense de Electricidad y Telecom., CR
10620 1089 1930 Telmex Colombia S.A., CO
36352 1012 2516 AS-COLOCROSSING, US
209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US
19901 964 1242 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)
----------------------------------------------
1:66 2:473 3:677 4:6 5:1050 6:159
7:5 8:632 11:171 12:996 13:308 14:110
15:301 16:245 17:5 18:889 20:176 21:4
22:188 23:2549 24:644 27:21 29:19 31:470
32:9 33:1 34:10 35:133 36:1322 37:1058
38:1908 39:551 40:62 41:949 42:213 43:187
44:33 45:3640 46:951 47:84 49:19 50:345
51:379 52:1384 54:297 55:1084 56:11 57:15
58:18 59:32 60:16 61:72 62:543 63:765
64:1916 65:1082 66:1547 67:953 68:402 69:1117
70:442 71:202 72:770 74:957 75:426 76:249
77:467 78:586 79:272 80:294 81:336 82:741
83:245 84:342 85:458 86:234 87:240 88:277
89:841 90:103 91:936 92:596 93:845 94:929
95:806 96:287 97:66 98:464 99:164 100:35
101:23 102:386 103:1223 104:1438 105:140 106:16
107:1498 108:553 109:389 110:33 111:1914 112:448
113:39 114:43 115:13 116:62 117:1035 118:71
119:130 120:1174 121:46 122:70 123:73 124:56
125:25 128:469 129:306 130:691 131:888 132:558
133:212 134:488 135:112 136:572 137:497 138:878
139:442 140:707 141:446 142:1024 143:645 144:427
145:135 146:674 147:509 148:859 149:724 150:385
151:630 152:495 153:129 154:1863 155:811 156:1423
157:376 158:537 159:685 160:709 161:696 162:939
163:351 164:706 165:768 166:775 167:633 168:1107
169:143 170:1582 171:123 172:1356 173:829 174:250
175:54 176:659 177:837 178:487 179:675 180:49
181:1737 182:29 183:866 184:451 185:3360 186:2022
187:1298 188:779 189:1627 190:4214 191:418 192:5164
193:1815 194:1216 195:922 196:680 197:1632 198:2728
199:4876 200:3566 201:3187 202:1000 203:738 204:2145
205:1943 206:1544 207:1493 208:1420 209:1937 210:308
211:430 212:929 213:834 214:985 215:45 216:2524
217:415 218:516 219:19 220:26 221:304 222:32
223:762
End of report
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