The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Monday, December 2, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Tue 03 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 470225
Prefixes after maximum aggregation: 188330
Deaggregation factor: 2.50
Unique aggregates announced to Internet: 234489
Total ASes present in the Internet Routing Table: 45492
Prefixes per ASN: 10.34
Origin-only ASes present in the Internet Routing Table: 35474
Origin ASes announcing only one prefix: 16305
Transit ASes present in the Internet Routing Table: 5794
Transit-only ASes present in the Internet Routing Table: 155
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 29
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1088
Unregistered ASNs in the Routing Table: 303
Number of 32-bit ASNs allocated by the RIRs: 5435
Number of 32-bit ASNs visible in the Routing Table: 4224
Prefixes from 32-bit ASNs in the Routing Table: 13332
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1244
Number of addresses announced to Internet: 2656333308
Equivalent to 158 /8s, 84 /16s and 109 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163714

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110218
Total APNIC prefixes after maximum aggregation: 33455
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112520
Unique aggregates announced from the APNIC address blocks: 47664
APNIC Region origin ASes present in the Internet Routing Table: 4848
APNIC Prefixes per ASN: 23.21
APNIC Region origin ASes announcing only one prefix: 1230
APNIC Region transit ASes present in the Internet Routing Table: 830
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 768
Number of APNIC addresses announced to Internet: 728295676
Equivalent to 43 /8s, 104 /16s and 232 /24s
Percentage of available APNIC address space announced: 85.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 162783
Total ARIN prefixes after maximum aggregation: 81281
ARIN Deaggregation factor: 2.00
Prefixes being announced from the ARIN address blocks: 163608
Unique aggregates announced from the ARIN address blocks: 75822
ARIN Region origin ASes present in the Internet Routing Table: 15891
ARIN Prefixes per ASN: 10.30
ARIN Region origin ASes announcing only one prefix: 6012
ARIN Region transit ASes present in the Internet Routing Table: 1617
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 40
Number of ARIN addresses announced to Internet: 1073612288
Equivalent to 63 /8s, 254 /16s and 6 /24s
Percentage of available ARIN address space announced: 56.8

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, 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, 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: 118910
Total RIPE prefixes after maximum aggregation: 60992
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122781
Unique aggregates announced from the RIPE address blocks: 78721
RIPE Region origin ASes present in the Internet Routing Table: 17525
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8299
RIPE Region transit ASes present in the Internet Routing Table: 2771
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2501
Number of RIPE addresses announced to Internet: 656104960
Equivalent to 39 /8s, 27 /16s and 94 /24s
Percentage of available RIPE address space announced: 95.4

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, 196608-200191
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,
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: 52525
Total LACNIC prefixes after maximum aggregation: 9808
LACNIC Deaggregation factor: 5.36
Prefixes being announced from the LACNIC address blocks: 57770
Unique aggregates announced from the LACNIC address blocks: 27281
LACNIC Region origin ASes present in the Internet Routing Table: 2041
LACNIC Prefixes per ASN: 28.30
LACNIC Region origin ASes announcing only one prefix: 557
LACNIC Region transit ASes present in the Internet Routing Table: 381
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 908
Number of LACNIC addresses announced to Internet: 145656064
Equivalent to 8 /8s, 174 /16s and 137 /24s
Percentage of available LACNIC address space announced: 86.8

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus 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: 11665
Total AfriNIC prefixes after maximum aggregation: 2578
AfriNIC Deaggregation factor: 4.52
Prefixes being announced from the AfriNIC address blocks: 12302
Unique aggregates announced from the AfriNIC address blocks: 4001
AfriNIC Region origin ASes present in the Internet Routing Table: 686
AfriNIC Prefixes per ASN: 17.93
AfriNIC Region origin ASes announcing only one prefix: 207
AfriNIC Region transit ASes present in the Internet Routing Table: 135
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 7
Number of AfriNIC addresses announced to Internet: 48481024
Equivalent to 2 /8s, 227 /16s and 195 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
17974 2709 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2138 11550 641 Korea Telecom (KIX)
7545 2109 319 111 TPG Internet Pty Ltd
4755 1793 392 190 TATA Communications formerly
9829 1543 1245 45 BSNL National Internet Backbo
9583 1251 95 510 Sify Limited
9498 1217 309 73 BHARTI Airtel Ltd.
7552 1163 1080 13 Vietel Corporation
24560 1102 382 166 Bharti Airtel Ltd., Telemedia
4808 1042 1945 300 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3042 3688 53 BellSouth.net Inc.
22773 2211 2939 137 Cox Communications, Inc.
18566 2052 379 178 MegaPath Corporation
1785 2044 685 132 PaeTec Communications, Inc.
20115 1684 1653 600 Charter Communications
4323 1653 1114 421 Time Warner Telecom
701 1500 11144 776 MCI Communications Services,
7029 1468 1257 164 Windstream Communications Inc
30036 1392 313 578 Mediacom Communications Corp
7018 1332 17779 872 AT&T WorldNet Services

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1918 544 16 OJSC "Vimpelcom"
34984 1365 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1184 447 894 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 895 99 48 TOV "Bank-Inform"
6849 856 363 39 JSC UKRTELECOM,
8551 786 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 676 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3413 1807 90 NET Servicos de Comunicao S.A
10620 2673 433 213 Telmex Colombia S.A.
7303 1730 1151 233 Telecom Argentina Stet-France
18881 1706 908 20 Global Village Telecom
8151 1349 2850 416 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 824 94 92 Telconet S.A
6147 788 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 771 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 871 338 26 LINKdotNET AS number
6713 551 633 26 Itissalat Al-MAGHRIB
8452 408 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 251 921 209 The Internet Solution
29571 229 21 15 Ci Telecom Autonomous system
36992 222 501 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3413 1807 90 NET Servicos de Comunicao S.A
6389 3042 3688 53 BellSouth.net Inc.
17974 2709 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2673 433 213 Telmex Colombia S.A.
22773 2211 2939 137 Cox Communications, Inc.
4766 2138 11550 641 Korea Telecom (KIX)
7545 2109 319 111 TPG Internet Pty Ltd
18566 2052 379 178 MegaPath Corporation
1785 2044 685 132 PaeTec Communications, Inc.
8402 1918 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3042 2989 BellSouth.net Inc.
17974 2709 2621 PT TELEKOMUNIKASI INDONESIA
10620 2673 2460 Telmex Colombia S.A.
22773 2211 2074 Cox Communications, Inc.
7545 2109 1998 TPG Internet Pty Ltd
1785 2044 1912 PaeTec Communications, Inc.
8402 1918 1902 OJSC "Vimpelcom"
18566 2052 1874 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1706 1686 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/au/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:476 /14:936 /15:1645 /16:12875 /17:6789 /18:11170
/19:23092 /20:32928 /21:35638 /22:50073 /23:43924 /24:250052
/25:44 /26:33 /27:50 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2007 2052 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3042 BellSouth.net Inc.
8402 1602 1918 OJSC "Vimpelcom"
22773 1465 2211 Cox Communications, Inc.
30036 1232 1392 Mediacom Communications Corp
11492 1196 1234 Cable One
1785 1088 2044 PaeTec Communications, Inc.
7029 1045 1468 Windstream Communications Inc
6983 1035 1293 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:910 2:865 3:3 4:17 5:806 6:21
8:608 12:1875 13:3 14:881 15:11 16:3
17:18 18:19 20:25 23:606 24:1760 27:1715
31:1517 32:45 33:2 34:5 36:95 37:1941
38:912 39:5 40:185 41:3242 42:323 44:14
46:2049 47:10 49:692 50:854 52:12 54:44
55:5 56:4 57:26 58:1115 59:580 60:367
61:1463 62:1235 63:1978 64:4397 65:2353 66:4249
67:2105 68:1113 69:3307 70:949 71:514 72:2023
74:2629 75:394 76:304 77:1216 78:1072 79:667
80:1273 81:1054 82:632 83:692 84:584 85:1250
86:382 87:1032 88:551 89:1551 90:155 91:5678
92:613 93:1607 94:2082 95:1509 96:515 97:348
98:1083 99:41 100:31 101:408 103:3736 105:530
106:143 107:217 108:535 109:2000 110:972 111:1122
112:580 113:800 114:757 115:1046 116:1007 117:808
118:1215 119:1286 120:368 121:746 122:1836 123:1268
124:1368 125:1464 128:625 129:222 130:337 131:662
132:347 133:158 134:294 135:72 136:275 137:246
138:351 139:178 140:172 141:335 142:537 143:399
144:497 145:90 146:541 147:425 148:727 149:368
150:153 151:607 152:413 153:207 154:42 155:507
156:307 157:369 158:283 159:695 160:359 161:456
162:916 163:206 164:621 165:575 166:283 167:637
168:1036 169:124 170:1108 171:185 172:12 173:1671
174:721 175:531 176:1322 177:2524 178:1874 179:297
180:1620 181:882 182:1409 183:478 184:634 185:1084
186:2657 187:1461 188:1854 189:1252 190:7257 192:7014
193:5433 194:4026 195:3361 196:1318 197:1035 198:4701
199:5471 200:6041 201:2523 202:8929 203:8932 204:4473
205:2630 206:2800 207:2751 208:3958 209:3662 210:2970
211:1576 212:2144 213:1990 214:887 215:84 216:5424
217:1708 218:633 219:319 220:1271 221:587 222:330
223:551

End of report
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