Routing Table Report 00:00 GMT Wed 15 Feb, 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: 401757
Prefixes after maximum aggregation: 171137
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 192610
Total ASes present in the Internet Routing Table: 40149
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32763
Origin ASes announcing only one prefix: 15549
Transit ASes present in the Internet Routing Table: 5415
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 28
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5105
Unregistered ASNs in the Routing Table: 147
Number of 32-bit ASNs allocated by the RIRs: 2278
Number of 32-bit ASNs visible in the Routing Table: 1971
Prefixes from 32-bit ASNs in the Routing Table: 4720
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 190
Number of addresses announced to Internet: 2515123681
Equivalent to 149 /8s, 233 /16s and 189 /24s
Percentage of available address space announced: 67.9
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 168996
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96516
Total APNIC prefixes after maximum aggregation: 30734
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 92901
Unique aggregates announced from the APNIC address blocks: 39207
APNIC Region origin ASes present in the Internet Routing Table: 4630
APNIC Prefixes per ASN: 20.07
APNIC Region origin ASes announcing only one prefix: 1245
APNIC Region transit ASes present in the Internet Routing Table: 746
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 145
Number of APNIC addresses announced to Internet: 635863552
Equivalent to 37 /8s, 230 /16s and 130 /24s
Percentage of available APNIC address space announced: 80.6
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: 151120
Total ARIN prefixes after maximum aggregation: 77525
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122826
Unique aggregates announced from the ARIN address blocks: 49465
ARIN Region origin ASes present in the Internet Routing Table: 14935
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5690
ARIN Region transit ASes present in the Internet Routing Table: 1563
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 804675848
Equivalent to 47 /8s, 246 /16s and 97 /24s
Percentage of available ARIN address space announced: 63.9
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: 101152
Total RIPE prefixes after maximum aggregation: 52628
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92092
Unique aggregates announced from the RIPE address blocks: 56129
RIPE Region origin ASes present in the Internet Routing Table: 16340
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 8009
RIPE Region transit ASes present in the Internet Routing Table: 2612
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1361
Number of RIPE addresses announced to Internet: 501103756
Equivalent to 29 /8s, 222 /16s and 60 /24s
Percentage of available RIPE address space announced: 80.7
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: 39057
Total LACNIC prefixes after maximum aggregation: 8080
LACNIC Deaggregation factor: 4.83
Prefixes being announced from the LACNIC address blocks: 38619
Unique aggregates announced from the LACNIC address blocks: 19520
LACNIC Region origin ASes present in the Internet Routing Table: 1571
LACNIC Prefixes per ASN: 24.58
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 297
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 446
Number of LACNIC addresses announced to Internet: 96556808
Equivalent to 5 /8s, 193 /16s and 87 /24s
Percentage of available LACNIC address space announced: 63.9
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: 8960
Total AfriNIC prefixes after maximum aggregation: 2089
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6971
Unique aggregates announced from the AfriNIC address blocks: 2124
AfriNIC Region origin ASes present in the Internet Routing Table: 514
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 30925312
Equivalent to 1 /8s, 215 /16s and 226 /24s
Percentage of available AfriNIC address space announced: 46.1
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 11096 664 Korea Telecom (KIX)
17974 1733 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1640 303 86 TPG Internet Pty Ltd
4755 1546 384 157 Videsh Sanchar Nigam Ltd. Aut
7552 1409 1064 7 Vietel Corporation
9829 1173 989 28 BSNL National Internet Backbo
9583 1125 84 482 Sify Limited
24560 1014 385 167 Bharti Airtel Ltd.
18101 950 130 155 Reliance Infocom Ltd Internet
17488 949 161 224 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 3441 3807 202 bellsouth.net, inc.
7029 3390 1018 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1870 680 125 AppliedTheory Corporation
20115 1626 1550 630 Charter Communications
4323 1608 1062 384 Time Warner Telecom
22773 1518 2910 110 Cox Communications, Inc.
30036 1391 246 751 Mediacom Communications Corp
19262 1387 4703 397 Verizon Global Networks
7018 1311 7012 853 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 1705 480 15 Corbina telecom
2118 1382 97 13 EUnet/RELCOM Autonomous Syste
15557 1095 2161 63 LDCOM NETWORKS
286 1055 806 198 KPNQwest Backbone AS
34984 650 188 172 Tellcom Iletisim Hizmetleri
6830 642 1926 411 UPC Distribution Services
20940 607 196 476 Akamai Technologies European
12479 604 643 54 Uni2 Autonomous System
8551 578 360 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 1721 324 163 TVCABLE BOGOTA
28573 1650 1085 69 Types of queries are: POCs, o
8151 1517 2985 340 Uninet S.A. de C.V.
7303 1263 758 182 Telecom Argentina Stet-France
26615 897 672 33 Types of queries are: POCs, o
27947 659 67 107 Telconet S.A
11172 628 91 72 Alestra
22047 581 322 17 Types of queries are: POCs, o
6503 560 418 67 AVANTEL, S.A.
3816 554 238 92 COLOMBIA TELECOMUNICACIONES S
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 1244 958 13 TEDATA
24863 830 156 44 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 276 939 229 The Internet Solution
33776 237 13 14 Starcomms Nigeria Limited
15706 222 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
24835 194 80 8 RAYA Telecom - Egypt
29571 189 17 11 Ci Telecom Autonomous system
16637 160 664 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 3441 3807 202 bellsouth.net, inc.
7029 3390 1018 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
4766 1905 11096 664 Korea Telecom (KIX)
1785 1870 680 125 AppliedTheory Corporation
17974 1733 503 36 PT TELEKOMUNIKASI INDONESIA
10620 1721 324 163 TVCABLE BOGOTA
8402 1705 480 15 Corbina telecom
28573 1650 1085 69 Types of queries are: POCs, o
7545 1640 303 86 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
7029 3390 3230 Windstream Communications Inc
18566 2091 1914 Covad Communications
1785 1870 1745 AppliedTheory Corporation
17974 1733 1697 PT TELEKOMUNIKASI INDONESIA
8402 1705 1690 Corbina telecom
28573 1650 1581 Types of queries are: POCs, o
10620 1721 1558 TVCABLE BOGOTA
7545 1640 1554 TPG Internet Pty Ltd
22773 1518 1408 Cox Communications, Inc.
7552 1409 1402 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
10.29.245.1/32 286 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
10.29.245.27/32 286 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
37.98.200.0/21 56687 Nimad Rah Khoozestan PLC
37.98.208.0/20 8374 Polkomtel S.A.
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 /8:19 /9:12 /10:27 /11:80 /12:231
/13:458 /14:821 /15:1502 /16:12281 /17:6468 /18:10707
/19:21030 /20:29523 /21:29663 /22:40281 /23:37550 /24:209463
/25:65 /26:83 /27:107 /28:279 /29:108 /30:532
/31:19 /32:448
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3045 3390 Windstream Communications Inc
6389 2110 3441 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1684 1705 Corbina telecom
10620 1615 1721 TVCABLE BOGOTA
30036 1348 1391 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1065 1870 AppliedTheory Corporation
8452 1053 1244 TEDATA
15557 1045 1095 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:512 2:703 4:18 5:1 6:3 8:387
12:1964 13:1 14:600 15:11 16:3 17:7
20:9 23:134 24:1734 27:1195 31:944 32:124
33:2 34:2 36:9 37:179 38:782 39:4
40:115 41:3150 42:96 43:1 44:3 46:1286
47:3 49:333 50:521 52:13 54:2 55:9
56:3 57:48 58:970 59:494 60:345 61:1207
62:957 63:2024 64:4159 65:2286 66:4455 67:2058
68:1360 69:3276 70:976 71:412 72:1823 73:1
74:2706 75:476 76:334 77:980 78:949 79:526
80:1235 81:887 82:586 83:529 84:593 85:1170
86:750 87:926 88:350 89:1564 90:270 91:4492
92:553 93:1334 94:1363 95:1085 96:421 97:310
98:827 99:38 100:4 101:269 103:791 106:65
107:153 108:156 109:1495 110:720 111:851 112:439
113:544 114:621 115:768 116:897 117:738 118:914
119:1256 120:365 121:706 122:1625 123:1072 124:1387
125:1370 128:525 129:193 130:217 131:581 132:167
133:21 134:235 135:60 136:216 137:153 138:286
139:157 140:484 141:262 142:392 143:410 144:518
145:70 146:485 147:251 148:765 149:303 150:163
151:196 152:447 153:170 154:7 155:415 156:211
157:370 158:158 159:516 160:322 161:245 162:341
163:188 164:531 165:410 166:557 167:455 168:758
169:148 170:834 171:114 172:2 173:1759 174:607
175:440 176:514 177:491 178:1253 180:1201 181:65
182:741 183:278 184:425 185:1 186:2054 187:847
188:1036 189:1173 190:5459 192:6009 193:5536 194:4364
195:3460 196:1297 197:166 198:3625 199:4381 200:5719
201:1739 202:8497 203:8691 204:4362 205:2450 206:2766
207:2801 208:4091 209:3589 210:2791 211:1489 212:2095
213:1858 214:861 215:102 216:5044 217:1484 218:554
219:341 220:1254 221:558 222:348 223:314
End of report