Routing Table Report 00:00 GMT Wed 06 Jul, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 367996
Prefixes after maximum aggregation: 165964
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 179742
Total ASes present in the Internet Routing Table: 38127
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31724
Origin ASes announcing only one prefix: 15189
Transit ASes present in the Internet Routing Table: 5169
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 31
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3881
Unregistered ASNs in the Routing Table: 519
Number of 32-bit ASNs allocated by the RIRs: 1522
Number of 32-bit ASNs visible in the Routing Table: 1234
Prefixes from 32-bit ASNs in the Routing Table: 2863
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 139
Number of addresses announced to Internet: 2494116679
Equivalent to 148 /8s, 169 /16s and 51 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 153206
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88008
Total APNIC prefixes after maximum aggregation: 29051
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 84859
Unique aggregates announced from the APNIC address blocks: 36893
APNIC Region origin ASes present in the Internet Routing Table: 4486
APNIC Prefixes per ASN: 18.92
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 709
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 55
Number of APNIC addresses announced to Internet: 621488065
Equivalent to 37 /8s, 11 /16s and 39 /24s
Percentage of available APNIC address space announced: 78.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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, 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: 144550
Total ARIN prefixes after maximum aggregation: 74746
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116204
Unique aggregates announced from the ARIN address blocks: 46648
ARIN Region origin ASes present in the Internet Routing Table: 14470
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5512
ARIN Region transit ASes present in the Internet Routing Table: 1499
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819634072
Equivalent to 48 /8s, 218 /16s and 159 /24s
Percentage of available ARIN address space announced: 65.1
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, 393216-394239
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,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 173/8,
174/8, 184/8, 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: 89702
Total RIPE prefixes after maximum aggregation: 49399
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82343
Unique aggregates announced from the RIPE address blocks: 52588
RIPE Region origin ASes present in the Internet Routing Table: 15799
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7826
RIPE Region transit ASes present in the Internet Routing Table: 2499
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 908
Number of RIPE addresses announced to Internet: 479256012
Equivalent to 28 /8s, 144 /16s and 221 /24s
Percentage of available RIPE address space announced: 77.2
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
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 34107
Total LACNIC prefixes after maximum aggregation: 7633
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33174
Unique aggregates announced from the LACNIC address blocks: 16946
LACNIC Region origin ASes present in the Internet Routing Table: 1481
LACNIC Prefixes per ASN: 22.40
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 254
Number of LACNIC addresses announced to Internet: 85822216
Equivalent to 5 /8s, 29 /16s and 139 /24s
Percentage of available LACNIC address space announced: 56.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8456
Total AfriNIC prefixes after maximum aggregation: 1977
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6499
Unique aggregates announced from the AfriNIC address blocks: 1976
AfriNIC Region origin ASes present in the Internet Routing Table: 472
AfriNIC Prefixes per ASN: 13.77
AfriNIC Region origin ASes announcing only one prefix: 148
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24324096
Equivalent to 1 /8s, 115 /16s and 40 /24s
Percentage of available AfriNIC address space announced: 36.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1905 9524 628 Korea Telecom (KIX)
17974 1837 460 43 PT TELEKOMUNIKASI INDONESIA
7545 1513 301 83 TPG Internet Pty Ltd
4755 1488 375 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9829 1098 914 45 BSNL National Internet Backbo
9583 1056 77 503 Sify Limited
4808 1026 2064 291 CNCGROUP IP network: China169
17488 977 186 103 Hathway IP Over Cable Interne
18101 933 116 140 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3612 3818 250 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1805 681 122 AppliedTheory Corporation
4323 1652 1098 400 Time Warner Telecom
20115 1594 1533 633 Charter Communications
19262 1450 4806 371 Verizon Global Networks
7018 1376 7086 901 AT&T WorldNet Services
7029 1358 967 205 Windstream Communications Inc
22773 1349 2897 88 Cox Communications, Inc.
6478 1340 248 614 AT&T Worldnet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 1042 798 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 537 106 182 Tellcom Iletisim Hizmetleri
3292 520 2077 402 TDC Tele Danmark
6830 514 1780 318 UPC Distribution Services
20940 469 137 361 Akamai Technologies European
8866 452 134 26 Bulgarian Telecommunication C
29049 440 33 45 AzerSat LLC.
12479 439 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1541 282 157 TVCABLE BOGOTA
8151 1429 2724 355 Uninet S.A. de C.V.
28573 1280 996 80 Types of queries are: POCs, o
7303 1002 509 177 Telecom Argentina Stet-France
6503 863 354 75 AVANTEL, S.A.
14420 688 55 83 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 530 229 96 COLOMBIA TELECOMUNICACIONES S
27947 520 54 48 Telconet S.A
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 795 445 11 TEDATA
24863 789 147 36 LINKdotNET AS number
15475 524 74 8 Nile Online
36992 315 415 14 Etisalat MISR
16637 292 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 219 12 8 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3612 3818 250 bellsouth.net, inc.
23456 2863 696 1531 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1905 9524 628 Korea Telecom (KIX)
17974 1837 460 43 PT TELEKOMUNIKASI INDONESIA
1785 1805 681 122 AppliedTheory Corporation
4323 1652 1098 400 Time Warner Telecom
20115 1594 1533 633 Charter Communications
10620 1541 282 157 TVCABLE BOGOTA
7545 1513 301 83 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1837 1794 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1805 1683 AppliedTheory Corporation
7545 1513 1430 TPG Internet Pty Ltd
10620 1541 1384 TVCABLE BOGOTA
23456 2863 1332 >>UNKNOWN<<
4755 1488 1322 Videsh Sanchar Nigam Ltd. Aut
4766 1905 1277 Korea Telecom (KIX)
22773 1349 1261 Cox Communications, Inc.
4323 1652 1252 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:22 /9:12 /10:28 /11:81 /12:231
/13:466 /14:808 /15:1425 /16:12110 /17:6139 /18:10101
/19:19983 /20:26979 /21:26621 /22:35012 /23:34073 /24:190917
/25:385 /26:356 /27:185 /28:357 /29:292 /30:705
/31:62 /32:646
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2222 3612 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1436 1541 TVCABLE BOGOTA
23456 1410 2863 >>UNKNOWN<<
6478 1311 1340 AT&T Worldnet Services
11492 1094 1140 Cable One
7029 1057 1358 Windstream Communications Inc
7011 1055 1156 Citizens Utilities
1785 1052 1805 AppliedTheory Corporation
286 902 1042 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:322 2:70 4:20 5:1 6:3 8:338
12:1979 13:1 14:473 15:15 16:3 17:8
20:10 23:13 24:1681 27:811 31:492 32:135
33:4 34:2 36:4 38:745 39:3 40:103
41:2567 42:31 44:3 46:1039 47:3 49:195
50:436 52:13 54:2 55:4 56:2 57:43
58:862 59:478 60:386 61:1177 62:1041 63:1953
64:3967 65:2304 66:3903 67:1933 68:1269 69:3142
70:802 71:389 72:1924 73:2 74:2437 75:325
76:349 77:925 78:717 79:482 80:1124 81:845
82:516 83:467 84:700 85:1089 86:554 87:779
88:341 89:1573 90:211 91:3946 92:540 93:1081
94:1369 95:872 96:447 97:254 98:901 99:36
101:77 103:105 106:10 107:20 108:80 109:1037
110:626 111:710 112:303 113:411 114:551 115:676
116:982 117:670 118:852 119:1155 120:308 121:689
122:1599 123:967 124:1300 125:1242 128:246 129:174
130:168 131:577 132:112 133:21 134:215 135:48
136:216 137:136 138:299 139:129 140:480 141:241
142:406 143:417 144:482 145:54 146:450 147:224
148:683 149:247 150:162 151:189 152:330 153:180
154:4 155:400 156:196 157:351 158:137 159:453
160:314 161:209 162:309 163:165 164:510 165:377
166:528 167:430 168:741 169:159 170:846 171:78
172:1 173:1652 174:617 175:380 176:143 177:163
178:1011 180:882 181:22 182:493 183:217 184:407
185:1 186:1263 187:766 188:897 189:979 190:4943
192:5925 193:4994 194:3554 195:3165 196:1250 197:41
198:3585 199:3972 200:5540 201:1500 202:8404 203:8417
204:4224 205:2344 206:2755 207:2812 208:3977 209:3467
210:2697 211:1463 212:2151 213:1789 214:768 215:69
216:4952 217:1664 218:547 219:361 220:1206 221:494
222:361 223:183
End of report
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