Routing Table Report 00:00 GMT Fri 13 Jan, 2012
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: 394315
Prefixes after maximum aggregation: 170062
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 190979
Total ASes present in the Internet Routing Table: 39823
Prefixes per ASN: 9.90
Origin-only ASes present in the Internet Routing Table: 32692
Origin ASes announcing only one prefix: 15533
Transit ASes present in the Internet Routing Table: 5284
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6615
Unregistered ASNs in the Routing Table: 1072
Number of 32-bit ASNs allocated by the RIRs: 2172
Number of 32-bit ASNs visible in the Routing Table: 1847
Prefixes from 32-bit ASNs in the Routing Table: 4448
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 2509379550
Equivalent to 149 /8s, 146 /16s and 23 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 165507
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94833
Total APNIC prefixes after maximum aggregation: 30360
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 91251
Unique aggregates announced from the APNIC address blocks: 38907
APNIC Region origin ASes present in the Internet Routing Table: 4620
APNIC Prefixes per ASN: 19.75
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 732
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 131
Number of APNIC addresses announced to Internet: 634166016
Equivalent to 37 /8s, 204 /16s and 155 /24s
Percentage of available APNIC address space announced: 80.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 150155
Total ARIN prefixes after maximum aggregation: 77297
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121921
Unique aggregates announced from the ARIN address blocks: 49079
ARIN Region origin ASes present in the Internet Routing Table: 14863
ARIN Prefixes per ASN: 8.20
ARIN Region origin ASes announcing only one prefix: 5670
ARIN Region transit ASes present in the Internet Routing Table: 1533
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 804775944
Equivalent to 47 /8s, 247 /16s and 232 /24s
Percentage of available ARIN address space announced: 64.0
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: 98580
Total RIPE prefixes after maximum aggregation: 52164
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 89689
Unique aggregates announced from the RIPE address blocks: 55651
RIPE Region origin ASes present in the Internet Routing Table: 16253
RIPE Prefixes per ASN: 5.52
RIPE Region origin ASes announcing only one prefix: 7987
RIPE Region transit ASes present in the Internet Routing Table: 2546
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1285
Number of RIPE addresses announced to Internet: 497334668
Equivalent to 29 /8s, 164 /16s and 185 /24s
Percentage of available RIPE address space announced: 80.1
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: 37558
Total LACNIC prefixes after maximum aggregation: 8082
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 37159
Unique aggregates announced from the LACNIC address blocks: 19178
LACNIC Region origin ASes present in the Internet Routing Table: 1559
LACNIC Prefixes per ASN: 23.84
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 413
Number of LACNIC addresses announced to Internet: 95369984
Equivalent to 5 /8s, 175 /16s and 59 /24s
Percentage of available LACNIC address space announced: 63.2
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: 8510
Total AfriNIC prefixes after maximum aggregation: 2086
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6537
Unique aggregates announced from the AfriNIC address blocks: 2063
AfriNIC Region origin ASes present in the Internet Routing Table: 511
AfriNIC Prefixes per ASN: 12.79
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.3
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: 30827008
Equivalent to 1 /8s, 214 /16s and 98 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1914 11097 661 Korea Telecom (KIX)
17974 1721 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 86 TPG Internet Pty Ltd
4755 1512 385 154 Videsh Sanchar Nigam Ltd. Aut
7552 1410 1064 7 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1118 81 492 Sify Limited
24560 1010 384 167 Bharti Airtel Ltd.
18101 976 130 155 Reliance Infocom Ltd Internet
17488 945 161 224 Hathway IP Over Cable Interne
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 3462 3808 212 bellsouth.net, inc.
7029 3217 1016 199 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1866 680 124 AppliedTheory Corporation
20115 1617 1552 619 Charter Communications
4323 1600 1046 379 Time Warner Telecom
22773 1514 2909 107 Cox Communications, Inc.
30036 1488 264 695 Mediacom Communications Corp
19262 1362 4683 401 Verizon Global Networks
7018 1308 7046 859 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
8402 1641 480 15 Corbina telecom
15557 1096 2161 64 LDCOM NETWORKS
286 1092 806 197 KPNQwest Backbone AS
2118 927 99 14 EUnet/RELCOM Autonomous Syste
6830 645 1928 413 UPC Distribution Services
34984 638 188 174 Tellcom Iletisim Hizmetleri
20940 565 183 454 Akamai Technologies European
12479 545 636 53 Uni2 Autonomous System
8551 542 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1726 319 158 TVCABLE BOGOTA
28573 1570 1065 77 Types of queries are: POCs, o
8151 1501 2978 338 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 636 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
3816 551 237 92 COLOMBIA TELECOMUNICACIONES S
6503 551 434 70 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima 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 1029 958 13 TEDATA
24863 795 146 36 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
33776 240 13 8 Starcomms Nigeria Limited
15706 239 32 6 Sudatel Internet Exchange Aut
29571 216 17 12 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
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 3462 3808 212 bellsouth.net, inc.
7029 3217 1016 199 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1914 11097 661 Korea Telecom (KIX)
1785 1866 680 124 AppliedTheory Corporation
10620 1726 319 158 TVCABLE BOGOTA
17974 1721 503 37 PT TELEKOMUNIKASI INDONESIA
8402 1641 480 15 Corbina telecom
7545 1628 303 86 TPG Internet Pty Ltd
20115 1617 1552 619 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3217 3018 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1866 1742 AppliedTheory Corporation
17974 1721 1684 PT TELEKOMUNIKASI INDONESIA
8402 1641 1626 Corbina telecom
10620 1726 1568 TVCABLE BOGOTA
7545 1628 1542 TPG Internet Pty Ltd
28573 1570 1493 Types of queries are: POCs, o
22773 1514 1407 Cox Communications, Inc.
7552 1410 1403 Vietel Corporation
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 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.46.0.0/21 21371 Interconnect Exchange Europe
37.46.16.0/24 702 UUNET - Commercial IP service
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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:465 /14:822 /15:1489 /16:12255 /17:6405 /18:10557
/19:20746 /20:29147 /21:28913 /22:39267 /23:36683 /24:205493
/25:54 /26:68 /27:97 /28:291 /29:106 /30:542
/31:52 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2840 3217 Windstream Communications Inc
6389 2117 3462 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1621 1726 TVCABLE BOGOTA
8402 1620 1641 Corbina telecom
30036 1447 1488 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1066 1866 AppliedTheory Corporation
15557 1046 1096 LDCOM NETWORKS
7011 1042 1159 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:497 2:471 4:19 5:1 6:3 8:371
12:1954 13:1 14:588 15:11 16:3 17:6
20:9 23:95 24:1713 27:1179 31:860 32:124
33:2 34:2 36:8 37:86 38:798 39:1
40:114 41:2912 42:86 43:1 44:3 46:1220
47:3 49:320 50:508 52:13 55:6 56:2
57:51 58:950 59:490 60:344 61:1190 62:969
63:1983 64:4139 65:2311 66:4401 67:2034 68:1340
69:3262 70:965 71:401 72:1817 73:1 74:2704
75:459 76:332 77:945 78:902 79:516 80:1192
81:869 82:550 83:534 84:589 85:1161 86:756
87:918 88:354 89:1621 90:261 91:4423 92:536
93:1544 94:1359 95:1068 96:397 97:296 98:807
99:38 100:18 101:250 103:648 106:10 107:132
108:131 109:1442 110:707 111:839 112:428 113:538
114:624 115:768 116:897 117:739 118:919 119:1263
120:360 121:699 122:1623 123:1054 124:1369 125:1355
128:520 129:195 130:203 131:588 132:162 133:21
134:227 135:58 136:213 137:151 138:288 139:155
140:491 141:261 142:381 143:395 144:505 145:68
146:485 147:234 148:689 149:278 150:166 151:193
152:447 153:170 154:7 155:409 156:210 157:337
158:155 159:511 160:320 161:222 162:336 163:188
164:529 165:412 166:562 167:456 168:831 169:148
170:827 171:102 172:4 173:1797 174:590 175:440
176:344 177:456 178:1180 180:1245 181:43 182:691
183:266 184:431 185:1 186:1483 187:828 188:1036
189:1147 190:5332 192:6013 193:5490 194:3987 195:3369
196:1295 197:168 198:3641 199:4300 200:5573 201:1704
202:8533 203:8622 204:4354 205:2433 206:2759 207:2812
208:4044 209:3580 210:2774 211:1492 212:2019 213:1835
214:829 215:94 216:4972 217:1486 218:563 219:342
220:1255 221:557 222:326 223:270
End of report
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