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From: Routing Analysis Role Account (no email)
Date: Fri Feb 02 2007 - 13:02:48 EST
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <>.
Routing Table Report 04:00 +10GMT Sat 03 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 209925
Prefixes after maximum aggregation: 113063
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 102253
Total ASes present in the Internet Routing Table: 24248
Origin-only ASes present in the Internet Routing Table: 21107
Origin ASes announcing only one prefix: 10211
Transit ASes present in the Internet Routing Table: 3141
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1671682188
Equivalent to 99 /8s, 163 /16s and 216 /24s
Percentage of available address space announced: 45.1
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 107663
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46876
Total APNIC prefixes after maximum aggregation: 18806
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 44283
Unique aggregates announced from the APNIC address blocks: 19393
APNIC Region origin ASes present in the Internet Routing Table: 2833
APNIC Region origin ASes announcing only one prefix: 788
APNIC Region transit ASes present in the Internet Routing Table: 418
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 283001824
Equivalent to 16 /8s, 222 /16s and 67 /24s
Percentage of available APNIC address space announced: 70.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 116/6, 120/6, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 103010
Total ARIN prefixes after maximum aggregation: 60874
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75935
Unique aggregates announced from the ARIN address blocks: 29246
ARIN Region origin ASes present in the Internet Routing Table: 11297
ARIN Region origin ASes announcing only one prefix: 4325
ARIN Region transit ASes present in the Internet Routing Table: 1052
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 315788928
Equivalent to 18 /8s, 210 /16s and 142 /24s
Percentage of available ARIN address space announced: 69.7
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
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 43595
Total RIPE prefixes after maximum aggregation: 28378
RIPE Deaggregation factor: 1.54
Prefixes being announced from the RIPE address blocks: 40254
Unique aggregates announced from the RIPE address blocks: 26747
RIPE Region origin ASes present in the Internet Routing Table: 9102
RIPE Region origin ASes announcing only one prefix: 4794
RIPE Region transit ASes present in the Internet Routing Table: 1470
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 287806244
Equivalent to 17 /8s, 39 /16s and 147 /24s
Percentage of available RIPE address space announced: 78.0
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
40960-43007
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13910
Total LACNIC prefixes after maximum aggregation: 4045
LACNIC Deaggregation factor: 3.44
Prefixes being announced from the LACNIC address blocks: 11939
Unique aggregates announced from the LACNIC address blocks: 7267
LACNIC Region origin ASes present in the Internet Routing Table: 764
LACNIC Region origin ASes announcing only one prefix: 252
LACNIC Region transit ASes present in the Internet Routing Table: 136
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37081600
Equivalent to 2 /8s, 53 /16s and 210 /24s
Percentage of available LACNIC address space announced: 55.3
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2531
Total AfriNIC prefixes after maximum aggregation: 958
AfriNIC Deaggregation factor: 2.64
Prefixes being announced from the AfriNIC address blocks: 1818
Unique aggregates announced from the AfriNIC address blocks: 1141
AfriNIC Region origin ASes present in the Internet Routing Table: 173
AfriNIC Region origin ASes announcing only one prefix: 51
AfriNIC Region transit ASes present in the Internet Routing Table: 34
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5365504
Equivalent to 0 /8s, 81 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 16.0
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1280 8664 277 CHINANET-BACKBONE
4755 1092 383 75 Videsh Sanchar Nigam Ltd. Aut
9583 1042 109 16 Sify Limited
9498 942 467 64 BHARTI BT INTERNET LTD.
4766 763 4944 313 Korea Telecom (KIX)
23577 760 34 691 Korea Telecom (ATM-MPLS)
17488 592 37 21 Hathway IP Over Cable Interne
1221 572 1698 441 Telstra Pty Ltd
7545 562 126 74 TPG Internet Pty Ltd
18101 516 103 23 Reliance Infocom Ltd Internet
17676 504 10935 66 Softbank BB Corp.
9443 442 111 74 Primus Telecommunications
4812 439 763 70 China Telecom (Shanghai)
7474 364 214 253 SingTel Optus Pty Ltd
4802 359 86 149 Wantree Development
17849 354 34 94 Telecommunications Technology
17557 345 34 167 Pakistan Telecom
2907 336 1749 309 SINET Japan
4837 336 4151 148 chinanet IDC center beijing n
10139 302 31 7 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1545 6129 996 AT&T WorldNet Services
2386 1107 569 732 AT&T Data Communications Serv
4323 1053 819 298 Time Warner Telecom
6197 1025 650 503 BellSouth Network Solutions,
18566 989 288 9 Covad Communications
174 936 6790 866 Cogent Communications
701 935 6695 743 UUNET Technologies, Inc.
11492 918 100 16 Cable One
1239 827 2730 578 Sprint
19262 809 2592 180 Verizon Global Networks
20115 796 694 413 Charter Communications
7011 761 224 466 Citizens Utilities
22773 723 1872 41 Cox Communications, Inc.
209 718 3742 565 Qwest
721 684 21836 281 DLA Systems Automation Center
852 604 1091 391 Telus Advanced Communications
5668 580 161 17 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 561 250 73 Canadian Research Network
6198 553 522 258 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1897 424 UUNET - Commercial IP service
24863 307 45 25 LINKdotNET AS number
3301 306 1199 288 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
8220 269 472 261 COLT Telecommunications
6746 267 95 246 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
3215 236 2192 93 France Telecom Transpac
8708 234 283 221 Romania Data Systems S.A.
1257 222 1100 171 SWIPnet Swedish IP Network
30890 214 19 91 SC Kappa Invexim SRL
3269 213 2391 71 TELECOM ITALIA
3246 208 355 198 Song Networks
5416 205 13 13 BATELCO-BH
8551 200 193 29 Bezeq International
20858 197 34 3 This AS will be used to conne
3352 191 1767 31 Ibernet, Internet Access Netw
3300 180 171 90 AUCS Communications Services
12479 177 578 6 Uni2 Autonomous System
786 172 1779 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 966 2079 203 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 385 113 83 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 254 74 30 ENTEL CHILE S.A.
14117 238 16 13 Telefonica del Sur S.A.
7303 235 105 35 Telecom Argentina Stet-France
11556 235 116 6 Cable-Wireless Panama
6147 227 182 20 Telefonica Del Peru
6503 220 175 92 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
7910 152 11 32 ANDINET ON LINE
21826 152 26 57 INTERCABLE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 145 22 17 NEWCOM AMERICAS
19169 142 9 24 Telconet
19429 139 84 34 E.T.B.
14522 137 22 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 237 60 6 TEDATA
15475 154 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 121 8 22 Internet Egypt Network
33783 113 6 6 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 52 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 39 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
33776 27 2 5 Starcomms Nigeria Limited
12455 26 6 3 Jambonet Autonomous system
21280 26 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
9583 1042 1026 Sify Limited
4755 1092 1017 Videsh Sanchar Nigam Ltd. Aut
4134 1280 1003 CHINANET-BACKBONE
18566 989 980 Covad Communications
11492 918 902 Cable One
9498 942 878 BHARTI BT INTERNET LTD.
8151 966 763 UniNet S.A. de C.V.
4323 1053 755 Time Warner Telecom
22773 723 682 Cox Communications, Inc.
19262 809 629 Verizon Global Networks
17488 592 571 Hathway IP Over Cable Interne
5668 580 563 CenturyTel Internet Holdings,
6197 1025 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 516 493 Reliance Infocom Ltd Internet
7545 562 488 TPG Internet Pty Ltd
855 561 488 Canadian Research Network
15270 505 471 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 763 450 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
172.33.1.0/24 7018 AT&T WorldNet Services
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.153.136.0/21 721 DLA Systems Automation Center
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:10 /10:13 /11:33 /12:116
/13:226 /14:418 /15:813 /16:9202 /17:3693 /18:6027
/19:13001 /20:14616 /21:13044 /22:16780 /23:17923 /24:112243
/25:671 /26:463 /27:384 /28:68 /29:40 /30:89
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 971 989 Covad Communications
11492 904 918 Cable One
9583 871 1042 Sify Limited
7018 850 1545 AT&T WorldNet Services
2386 830 1107 AT&T Data Communications Serv
6197 795 1025 BellSouth Network Solutions,
23577 746 760 Korea Telecom (ATM-MPLS)
7011 662 761 Citizens Utilities
9498 600 942 BHARTI BT INTERNET LTD.
4766 571 763 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 503 1092 Videsh Sanchar Nigam Ltd. Aut
15270 473 505 PaeTec.net -a division of Pae
855 460 561 Canadian Research Network
5668 448 580 CenturyTel Internet Holdings,
18101 447 516 Reliance Infocom Ltd Internet
17488 415 592 Hathway IP Over Cable Interne
1239 406 827 Sprint
33588 403 425 Bresnan Communications, LLC.
6198 391 553 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 6:1 7:1 8:63 9:1 12:1648
13:1 15:16 16:3 17:3 18:5 20:36
24:875 25:1 32:53 38:279 40:56 41:66
44:2 47:7 52:4 55:1 56:3 57:25
58:302 59:376 60:203 61:919 62:1051 63:1904
64:3227 65:2309 66:3154 67:712 68:644 69:1709
70:433 71:133 72:1178 73:1 74:162 75:66
76:22 77:7 80:830 81:790 82:657 83:350
84:510 85:771 86:465 87:479 88:279 89:790
90:1 91:197 97:1 116:1 117:1 118:1
119:1 120:1 121:129 122:76 123:32 124:582
125:793 128:310 129:219 130:126 131:342 132:47
133:9 134:184 135:44 136:180 137:113 138:191
139:53 140:520 141:142 142:371 143:212 144:271
145:67 146:305 147:140 148:369 149:190 150:115
151:116 152:90 153:119 154:5 155:250 156:124
157:174 158:168 159:148 160:98 161:85 162:228
163:162 164:450 165:293 166:247 167:282 168:495
169:121 170:383 171:15 172:1 189:156 190:360
192:5745 193:3671 194:2934 195:2208 196:940 198:3760
199:3283 200:4629 201:971 202:7147 203:7333 204:3955
205:2089 206:2413 207:2885 208:2449 209:3596 210:2375
211:887 212:1313 213:1427 214:396 215:39 216:4060
217:1174 218:347 219:264 220:850 221:369 222:236
End of report
Report Website: http://thyme.apnic.net
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