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.

Thursday, November 28, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Fri 29 Nov, 2013

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

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

BGP routing table entries examined: 470211
Prefixes after maximum aggregation: 188311
Deaggregation factor: 2.50
Unique aggregates announced to Internet: 234735
Total ASes present in the Internet Routing Table: 41270
Prefixes per ASN: 11.39
Origin-only ASes present in the Internet Routing Table: 35487
Origin ASes announcing only one prefix: 16315
Transit ASes present in the Internet Routing Table: 5783
Transit-only ASes present in the Internet Routing Table: 154
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: 1081
Unregistered ASNs in the Routing Table: 300
Number of 32-bit ASNs allocated by the RIRs: 5411
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 13220
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1239
Number of addresses announced to Internet: 2656099580
Equivalent to 158 /8s, 80 /16s and 220 /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: 163875

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

Prefixes being announced by APNIC Region ASes: 110132
Total APNIC prefixes after maximum aggregation: 33413
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 112400
Unique aggregates announced from the APNIC address blocks: 47734
APNIC Region origin ASes present in the Internet Routing Table: 4847
APNIC Prefixes per ASN: 23.19
APNIC Region origin ASes announcing only one prefix: 1227
APNIC Region transit ASes present in the Internet Routing Table: 824
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 728981500
Equivalent to 43 /8s, 115 /16s and 95 /24s
Percentage of available APNIC address space announced: 85.2

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: 162671
Total ARIN prefixes after maximum aggregation: 81276
ARIN Deaggregation factor: 2.00
Prefixes being announced from the ARIN address blocks: 163544
Unique aggregates announced from the ARIN address blocks: 75807
ARIN Region origin ASes present in the Internet Routing Table: 15897
ARIN Prefixes per ASN: 10.29
ARIN Region origin ASes announcing only one prefix: 6017
ARIN Region transit ASes present in the Internet Routing Table: 1616
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: 0
Number of ARIN addresses announced to Internet: 1073691904
Equivalent to 63 /8s, 255 /16s and 61 /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: 119096
Total RIPE prefixes after maximum aggregation: 61036
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122861
Unique aggregates announced from the RIPE address blocks: 78958
RIPE Region origin ASes present in the Internet Routing Table: 17526
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8315
RIPE Region transit ASes present in the Internet Routing Table: 2765
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 656205824
Equivalent to 39 /8s, 28 /16s and 232 /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: 52586
Total LACNIC prefixes after maximum aggregation: 9794
LACNIC Deaggregation factor: 5.37
Prefixes being announced from the LACNIC address blocks: 57803
Unique aggregates announced from the LACNIC address blocks: 27221
LACNIC Region origin ASes present in the Internet Routing Table: 2038
LACNIC Prefixes per ASN: 28.36
LACNIC Region origin ASes announcing only one prefix: 551
LACNIC Region transit ASes present in the Internet Routing Table: 383
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: 0
Number of LACNIC addresses announced to Internet: 144504832
Equivalent to 8 /8s, 156 /16s and 248 /24s
Percentage of available LACNIC address space announced: 86.1

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: 11721
Total AfriNIC prefixes after maximum aggregation: 2585
AfriNIC Deaggregation factor: 4.53
Prefixes being announced from the AfriNIC address blocks: 12364
Unique aggregates announced from the AfriNIC address blocks: 4015
AfriNIC Region origin ASes present in the Internet Routing Table: 686
AfriNIC Prefixes per ASN: 18.02
AfriNIC Region origin ASes announcing only one prefix: 205
AfriNIC Region transit ASes present in the Internet Routing Table: 134
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: 0
Number of AfriNIC addresses announced to Internet: 48524800
Equivalent to 2 /8s, 228 /16s and 110 /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 2714 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2137 11550 641 Korea Telecom (KIX)
7545 2110 319 111 TPG Internet Pty Ltd
4755 1793 392 190 TATA Communications formerly
9829 1544 1245 45 BSNL National Internet Backbo
9583 1251 95 510 Sify Limited
9498 1213 309 73 BHARTI Airtel Ltd.
7552 1163 1080 13 Vietel Corporation
24560 1096 382 166 Bharti Airtel Ltd., Telemedia
4808 1043 1945 301 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 1681 1652 601 Charter Communications
4323 1653 1114 421 Time Warner Telecom
701 1502 11144 778 MCI Communications Services,
7029 1469 1257 164 Windstream Communications Inc
30036 1388 313 582 Mediacom Communications Corp
7018 1332 17779 871 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 1914 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1193 453 891 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 895 99 48 TOV "Bank-Inform"
6849 856 363 39 JSC UKRTELECOM,
8551 785 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 680 798 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 3392 1807 90 NET Servicos de Comunicao S.A
10620 2671 433 213 Telmex Colombia S.A.
7303 1729 1151 232 Telecom Argentina Stet-France
18881 1705 908 20 Global Village Telecom
8151 1346 2850 415 UniNet S.A. de C.V.
11830 867 364 15 Instituto Costarricense de El
27947 822 94 92 Telconet S.A
6147 791 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 779 434 60 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 1864 112 5 Sudanese Mobile Telephone (ZA
24863 869 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 411 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 255 921 213 The Internet Solution
29571 227 17 14 Ci Telecom Autonomous system
36992 222 501 29 Etisalat MISR
15706 221 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 3392 1807 90 NET Servicos de Comunicao S.A
6389 3042 3688 53 BellSouth.net Inc.
17974 2714 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2671 433 213 Telmex Colombia S.A.
22773 2211 2939 137 Cox Communications, Inc.
4766 2137 11550 641 Korea Telecom (KIX)
7545 2110 319 111 TPG Internet Pty Ltd
18566 2052 379 178 MegaPath Corporation
1785 2044 685 132 PaeTec Communications, Inc.
8402 1914 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 2714 2626 PT TELEKOMUNIKASI INDONESIA
10620 2671 2458 Telmex Colombia S.A.
22773 2211 2074 Cox Communications, Inc.
7545 2110 1999 TPG Internet Pty Ltd
1785 2044 1912 PaeTec Communications, Inc.
8402 1914 1898 OJSC "Vimpelcom"
18566 2052 1874 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
18881 1705 1685 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
/13:475 /14:929 /15:1636 /16:12865 /17:6780 /18:11149
/19:23080 /20:32921 /21:35640 /22:50048 /23:43927 /24:250134
/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 1829 1864 Sudanese Mobile Telephone (ZA
6389 1700 3042 BellSouth.net Inc.
8402 1600 1914 OJSC "Vimpelcom"
22773 1465 2211 Cox Communications, Inc.
30036 1230 1388 Mediacom Communications Corp
11492 1195 1233 Cable One
1785 1088 2044 PaeTec Communications, Inc.
7029 1046 1469 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)
----------------------------------------------

1:906 2:859 3:3 4:17 5:1025 6:21
8:608 12:1874 13:3 14:879 15:11 16:3
17:18 18:19 20:25 23:601 24:1759 27:1718
31:1516 32:45 33:2 34:5 36:87 37:1939
38:913 39:5 40:185 41:3251 42:295 44:14
46:2033 47:10 49:688 50:855 52:12 54:44
55:5 56:4 57:26 58:1114 59:577 60:367
61:1467 62:1249 63:1976 64:4395 65:2355 66:4250
67:2101 68:1102 69:3296 70:949 71:514 72:2024
74:2629 75:394 76:304 77:1216 78:1073 79:666
80:1275 81:1049 82:630 83:682 84:586 85:1248
86:380 87:1019 88:552 89:1550 90:154 91:5693
92:612 93:1604 94:2082 95:1517 96:516 97:347
98:1085 99:41 100:32 101:408 103:3711 105:530
106:143 107:218 108:535 109:1998 110:976 111:1111
112:577 113:802 114:759 115:1048 116:1010 117:809
118:1199 119:1275 120:364 121:747 122:1834 123:1270
124:1383 125:1461 128:625 129:222 130:337 131:646
132:347 133:158 134:293 135:72 136:277 137:246
138:351 139:178 140:172 141:335 142:539 143:393
144:496 145:90 146:540 147:405 148:730 149:370
150:154 151:664 152:412 153:207 154:53 155:502
156:303 157:369 158:283 159:694 160:361 161:455
162:913 163:206 164:617 165:583 166:283 167:637
168:1036 169:124 170:1108 171:185 172:11 173:1663
174:716 175:523 176:1322 177:2542 178:1870 179:288
180:1615 181:871 182:1408 183:475 184:640 185:1075
186:2648 187:1459 188:1853 189:1253 190:7302 192:7006
193:5431 194:4025 195:3356 196:1332 197:1037 198:4705
199:5470 200:6040 201:2521 202:8908 203:8945 204:4475
205:2636 206:2764 207:2748 208:3954 209:3665 210:2963
211:1573 212:2154 213:1999 214:892 215:86 216:5414
217:1697 218:629 219:318 220:1277 221:585 222:350
223:551

End of report
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